CN117500126A - Method and system for realizing low-level illumination - Google Patents

Method and system for realizing low-level illumination Download PDF

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CN117500126A
CN117500126A CN202311845740.0A CN202311845740A CN117500126A CN 117500126 A CN117500126 A CN 117500126A CN 202311845740 A CN202311845740 A CN 202311845740A CN 117500126 A CN117500126 A CN 117500126A
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low
light source
illumination
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CN117500126B (en
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黄登峰
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Shenzhen Tuoan Technology Co ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters

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Abstract

The invention relates to the field of low-level illumination, and discloses a method and a system for realizing low-level illumination, wherein the method comprises the following steps: acquiring scene data of a to-be-low-level illumination scene, and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene; identifying low-order illumination requirements of a three-dimensional modeling scene, and constructing an illumination rule of the three-dimensional modeling scene; simulating low-level illumination of a low-level illumination scene to be subjected to three-dimensional modeling to obtain the low-level illumination scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illumination scene; analyzing low-order lighting effects of a low-order lighting scene, and constructing an optimization instruction of a lighting rule based on the low-order lighting effects; and optimizing rule parameters of the illumination rule, obtaining the optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated. The invention can improve the low-order illumination effect on the target scene.

Description

Method and system for realizing low-level illumination
Technical Field
The present invention relates to the field of low-level illumination, and in particular, to a method and system for implementing low-level illumination.
Background
The low-level illumination refers to that in the illumination design, the lamp is installed at a lower position so as to provide specific illumination effect and atmosphere, and compared with the traditional high-level illumination, the low-level illumination can provide softer and more uniform light distribution, thereby being beneficial to improving the layering sense and atmosphere sense of the space.
At present, low-level illumination is realized mainly by configuring low-level illumination lamplight equipment for a scene needing low-level illumination, and then adjusting parameters such as illumination angle, illumination brightness and the like of the lamplight equipment according to lamplight states of lamplight.
Disclosure of Invention
The invention provides a method and a system for realizing low-level illumination, and mainly aims to improve the low-level illumination effect on a target scene.
To achieve the above object, the present invention provides a method for achieving low-level illumination, including:
acquiring scene data of a to-be-low-level illumination scene, and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
identifying low-order lighting requirements of the three-dimensional modeling scene, and constructing lighting rules of the three-dimensional modeling scene based on the low-order lighting requirements;
based on the illumination rule, simulating low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene;
Analyzing low-level lighting effects of the low-level lighting scene based on the light source brightness, the light source illuminance and the light source uniformity, and constructing an optimization instruction of the lighting rule based on the low-level lighting effects;
and optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
Optionally, the constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data includes:
extracting scene point cloud data and scene images in the scene data;
constructing a three-dimensional structure model of the to-be-low-level illumination scene based on the scene point cloud data;
extracting texture features of the scene image;
and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the texture features and the three-dimensional structure model.
Optionally, the constructing the three-dimensional structure model of the to-be-low-level illumination scene based on the scene point cloud data includes:
constructing a space coordinate system of the scene point cloud data;
based on the space coordinate system, calculating curve coordinates of data points corresponding to the scene point cloud data by using the following formula:
；
Wherein (x, y, z) represents the curve coordinate of the a-th data point in the scene point cloud data in a space coordinate system, and x a Representing the value of the a-th data point in the scene point cloud data on the x axis of a space coordinate system, y a Representing the value of the a-th data point in the scene point cloud data on the y axis of a space coordinate system, and z a Representing the value of the a-th data point in the scene point cloud data on the z-axis of a space coordinate system, sigma a The weight coefficient of an a-th data point in the scene point cloud data is represented, and S represents the number of data points corresponding to the scene point cloud data;
marking a reconstruction curved surface of the scene point cloud data based on the curve coordinates;
and constructing a three-dimensional structure model of the to-be-low-level illumination scene based on the reconstructed curved surface.
Optionally, the extracting texture features of the scene image includes:
constructing a scene image co-occurrence matrix of the scene image;
based on the scene image co-occurrence matrix, pixel pair correlation values for the scene image are calculated using the following formula:
；
wherein Cla represents a pixel pair correlation value of the scene image, GLCM (r, v) represents a frequency or number of occurrences of a pixel pair of gray levels r and v, r x v represents a product of gray levels r and v, ρx represents a row mean value of the scene image co-occurrence matrix, ρy represents a column mean value of the scene image co-occurrence matrix, σx represents a row standard deviation of the scene image co-occurrence matrix, and σy represents a column standard deviation of the scene image co-occurrence matrix;
Analyzing texture information of the scene image based on the pixel pair correlation values;
and extracting texture features of the scene image based on the texture information.
Optionally, the identifying low-order lighting requirements of the three-dimensional modeling scene includes:
identifying a spatial structure of the three-dimensional modeling scene;
analyzing the illumination condition of the three-dimensional modeling scene based on the spatial structure;
and determining low-order lighting requirements of the three-dimensional modeling scene based on the lighting conditions.
Optionally, the calculating the light source brightness, the light source illuminance and the light source uniformity of the light source corresponding to the low-level illumination scene includes:
identifying luminous flux of a light source corresponding to the low-order illumination scene;
calculating the light source height of a light source corresponding to the low-level illumination scene;
calculating the light source brightness of the light source corresponding to the low-order illumination scene based on the luminous flux and the light source height;
calculating the light source illumination of the light source corresponding to the low-level illumination scene based on the luminous flux and the light source height;
based on the light source brightness, calculating the light source uniformity of the light source corresponding to the low-order illumination scene by using the following formula:
；
wherein u represents a low-order lighting scene Uniformity of light source corresponding to light source E min Representing minimum brightness of light source corresponding to low-order illumination scene, E av Representing the average brightness of the light source corresponding to the low-order illumination scene.
Optionally, the calculating, based on the luminous flux and the light source height, the light source brightness of the light source corresponding to the low-order lighting scene includes:
based on the luminous flux and the light source height, calculating the light source brightness of the light source corresponding to the low-order illumination scene by using the following formula:
；
wherein E represents the light source brightness of the light source P point corresponding to the low-order illumination scene, sigma (P, gamma) represents the light intensity of the light source P point corresponding to the low-order illumination scene in the (P, gamma) direction, and (P, gamma) represents the angle in the light intensity distribution table of the light source corresponding to the low-order illumination scene, mu represents the ground reflection coefficient,the luminous flux of the light source corresponding to the low-order illumination scene is represented, epsilon represents the included angle between the incident ray vector of the light source corresponding to the low-order illumination scene and the normal of the ground, and H represents the height of the light source.
Optionally, the calculating, based on the luminous flux and the light source height, the light source illuminance of the light source corresponding to the low-order lighting scene includes:
based on the luminous flux and the light source height, calculating the light source illumination of the light source corresponding to the low-order illumination scene by using the following formula:
；
Wherein E represents the light source brightness of the light source P point corresponding to the low-order illumination scene, sigma (P, gamma) represents the light intensity of the light source P point corresponding to the low-order illumination scene in the (P, gamma) direction, and (P, gamma) represents the angle in the light intensity distribution table of the light source corresponding to the low-order illumination scene, mu represents the ground reflection coefficient,the luminous flux of the light source corresponding to the low-order illumination scene is represented, epsilon represents the included angle between the incident ray vector of the light source corresponding to the low-order illumination scene and the normal of the ground, and H represents the height of the light source.
Optionally, the analyzing the low-level lighting effect of the low-level lighting scene based on the light source brightness, the light source illuminance and the light source uniformity includes:
respectively identifying the brightness of the light source, the illuminance of the light source, the uniformity of the light source and the brightness influence relationship, the illuminance influence relationship and the uniformity influence relationship of the low-order illumination scene;
analyzing the brightness influence weight, the illuminance influence weight and the uniformity influence weight of the light source brightness, the light source illuminance and the light source uniformity on the low-order illumination scene based on the brightness influence relation, the illuminance influence relation and the uniformity influence relation;
and weighting the brightness influence weight, the illumination influence weight and the uniformity influence weight to obtain the low-order illumination effect of the low-order illumination scene.
In order to solve the above problems, the present invention also provides a system for realizing low-level illumination, the system comprising:
the scene three-dimensional modeling module is used for collecting scene data of a to-be-low-level illumination scene and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
the illumination rule construction module is used for identifying low-order illumination requirements of the three-dimensional modeling scene and constructing illumination rules of the three-dimensional modeling scene based on the low-order illumination requirements;
the scene low-level illumination simulation module is used for simulating low-level illumination of the scene to be low-level illuminated by utilizing the three-dimensional modeling scene based on the illumination rule to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene;
the low-order illumination optimization module is used for analyzing the low-order illumination effect of the low-order illumination scene based on the light source brightness, the light source illumination and the light source uniformity and constructing an optimization instruction of the illumination rule based on the low-order illumination effect;
and the target low-order illumination module is used for optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
According to the embodiment of the invention, based on the scene data, the three-dimensional modeling scene of the low-level illumination scene to be constructed can simulate low-level illumination through the low-level illumination scene to be constructed, so that the lighting effect of the lamp can be recognized more intuitively; the embodiment of the invention can provide a data basis for constructing the illumination condition for low-level illumination in the later period by identifying the low-level illumination requirement of the three-dimensional modeling scene; optionally, according to the embodiment of the invention, based on the low-level illumination requirement, the illumination rule of the three-dimensional modeling scene is constructed, so that the simulated illumination of the three-dimensional modeling scene can be realized, and the effect of low-level illumination is improved. Therefore, the method and the system for realizing low-order illumination can improve the low-order illumination effect on the target scene.
Drawings
FIG. 1 is a flow chart of a method for low-level illumination according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of a system for implementing low-level illumination according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an electronic device for implementing a low-level illumination system according to an embodiment of the present invention;
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment of the application provides a method for realizing low-level illumination. The execution subject of the method for implementing low-level illumination includes, but is not limited to, at least one of a server, a terminal, and the like, which can be configured to execute the method provided by the embodiments of the present application. In other words, the method for implementing low-level lighting may be performed by software or hardware installed in a terminal device or a server device, and the software may be a blockchain platform. The service end includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like. The server may be an independent server, or may be a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (Content Delivery Network, CDN), and basic cloud computing services such as big data and artificial intelligence platforms.
Referring to fig. 1, a flow chart of a method for implementing low-level illumination according to an embodiment of the invention is shown. In this embodiment, the method for implementing low-level illumination includes:
s1, acquiring scene data of a to-be-low-level illumination scene, and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data.
In the embodiment of the present invention, the scene data refers to a data set related to the scene to be low-level illuminated, such as data of a scene structure, scene space data, and the like.
Further, the embodiment of the invention constructs the three-dimensional modeling scene of the low-level illumination scene to be identified based on the scene data, and the low-level illumination can be simulated through the low-level illumination scene to be identified more intuitively. The three-dimensional modeling scene refers to a three-dimensional model of the to-be-low illumination scene constructed through a three-dimensional technology.
As one embodiment of the present invention, the constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data includes: extracting scene point cloud data and scene images in the scene data; constructing a three-dimensional structure model of the to-be-low-level illumination scene based on the scene point cloud data; extracting texture features of the scene image; and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the texture features and the three-dimensional structure model.
The scene point cloud data refers to data describing geometric information and position information of each object of the low-level illumination scene, the scene image refers to an image recording details of the low-level illumination scene, the three-dimensional structure model refers to understanding the point cloud data through an algorithm, extracting geometric features, position information and the like of the objects, and reconstructing a three-dimensional model of the objects, wherein the texture features refer to detail texture features of the low-level illumination scene, such as detail features of scene entity materials, scene entity colors and the like.
Optionally, as an optional embodiment of the present invention, the constructing the three-dimensional structure model of the to-be-low-level illumination scene based on the scene point cloud data includes: constructing a space coordinate system of the scene point cloud data; based on the space coordinate system, calculating curve coordinates of data points corresponding to the scene point cloud data by using the following formula:
；
wherein (x, y, z) represents the curve coordinate of the a-th data point in the scene point cloud data in a space coordinate system, and x a Representing the value of the a-th data point in the scene point cloud data on the x axis of a space coordinate system, y a Representing the value of the a-th data point in the scene point cloud data on the y axis of a space coordinate system, and z a Representing the value of the a-th data point in the scene point cloud data on the z-axis of a space coordinate system, sigma a The weight coefficient of an a-th data point in the scene point cloud data is represented, and S represents the number of data points corresponding to the scene point cloud data;
marking a reconstruction curved surface of the scene point cloud data based on the curve coordinates;
and constructing a three-dimensional structure model of the to-be-low-level illumination scene based on the reconstructed curved surface.
The weight coefficient refers to the contribution degree of an a-th data point in scene point cloud data in curved surface reconstruction, and the reconstructed curved surface refers to the surface shape of a target object described in a three-dimensional space through the scene point cloud data.
Optionally, as an optional embodiment of the present invention, the extracting texture features of the scene image includes: constructing a scene image co-occurrence matrix of the scene image; based on the scene image co-occurrence matrix, pixel pair correlation values for the scene image are calculated using the following formula:
；
wherein Cla represents a pixel pair correlation value of the scene image, GLCM (r, v) represents a frequency or number of occurrences of a pixel pair of gray levels r and v, r x v represents a product of gray levels r and v, ρx represents a row mean value of the scene image co-occurrence matrix, ρy represents a column mean value of the scene image co-occurrence matrix, σx represents a row standard deviation of the scene image co-occurrence matrix, and σy represents a column standard deviation of the scene image co-occurrence matrix;
Analyzing texture information of the scene image based on the pixel pair correlation values;
and extracting texture features of the scene image based on the texture information.
The scene image co-occurrence matrix refers to a statistical tool for describing image texture characteristics. The method is used for analyzing the spatial relation and the occurrence frequency between pixels with different gray levels in an image, wherein the correlation degree between the pixel pairs of the scene image is obtained by the pixel pair correlation value, and the texture information refers to the surface texture characteristics and the structure of the scene image.
S2, identifying low-order lighting requirements of the three-dimensional modeling scene, and constructing lighting rules of the three-dimensional modeling scene based on the low-order lighting requirements.
The embodiment of the invention can provide a data basis for constructing the illumination condition for low-level illumination in the later stage by identifying the low-level illumination requirement of the three-dimensional modeling scene. Wherein, the low-order illumination requirement refers to conditions for realizing the low-order illumination of the three-dimensional modeling scene, such as illumination range, illumination care intensity and the like.
As one embodiment of the present invention, the identifying the low-order lighting requirement of the three-dimensional modeling scene includes: identifying a spatial structure of the three-dimensional modeling scene; analyzing the illumination condition of the three-dimensional modeling scene based on the spatial structure; and determining low-order lighting requirements of the three-dimensional modeling scene based on the lighting conditions.
The space structure refers to the relative position and height relation among all objects, and the illumination condition refers to the illumination condition corresponding to all objects in a scene.
Optionally, the embodiment of the invention constructs the illumination rule of the three-dimensional modeling scene based on the low-order illumination requirement, so that the simulated illumination of the three-dimensional modeling scene can be realized, and the effect of low-order illumination is improved. The lighting rule of the three-dimensional modeling scene is realized by configuring lighting equipment, equipment parameters and equipment installation parameters of the three-dimensional modeling scene based on the low-level lighting requirement, wherein the lighting equipment comprises equipment such as led lighting, bulbs and the like, the equipment parameters refer to parameters such as power, shape and the like of the lighting equipment, and the equipment installation parameters refer to parameters such as installation coordinates, installation direction and the like of the lighting equipment.
And S3, based on the illumination rule, simulating low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene.
Based on the illumination rule, the embodiment of the invention simulates low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene to obtain the light-shade distribution and shadow effect of the scene under different illumination conditions, so as to identify the effect of low-level illumination. The low-order illumination scene refers to an illumination effect after the three-dimensional modeling scene simulates low-order illumination through the illumination rule. Optionally, the low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene is simulated by using a professional illumination simulation tool such as V-Ray, lumion and the like.
Further, according to the embodiment of the invention, the light source brightness, the light source illuminance and the light source uniformity of the light source corresponding to the low-level illumination scene are calculated respectively, and the light source is calculated and selected reasonably, so that the illumination system can meet the functional requirement and provide visual comfort. The light source brightness refers to light source brightness perceived by human eyes, the light source illuminance refers to luminous flux received in unit area, and the light source uniformity refers to uniformity of illumination distribution.
As an embodiment of the present invention, the calculating the light source brightness, the light source illuminance and the light source uniformity of the light source corresponding to the low-level illumination scene includes: identifying luminous flux of a light source corresponding to the low-order illumination scene; calculating the light source height of a light source corresponding to the low-level illumination scene; calculating the light source brightness of the light source corresponding to the low-order illumination scene based on the luminous flux and the light source height; calculating the light source illumination of the light source corresponding to the low-level illumination scene based on the luminous flux and the light source height; based on the light source brightness, calculating the light source uniformity of the light source corresponding to the low-order illumination scene by using the following formula:
；
Wherein u represents the uniformity of the light source corresponding to the light source of the low-order illumination scene, E min Representing minimum brightness of light source corresponding to low-order illumination scene, E av Representing the average brightness of the light source corresponding to the low-order illumination scene.
The luminous flux is a physical quantity used for describing the quantity of light rays emitted by a light source in unit time, and the light source height is the height of the light source corresponding to the low-level lighting scene and the ground.
Optionally, as an optional embodiment of the present invention, the calculating, based on the luminous flux and the light source height, a light source brightness of the light source corresponding to the low-order lighting scene includes: based on the luminous flux and the light source height, calculating the light source brightness of the light source corresponding to the low-order illumination scene by using the following formula:
；
wherein E represents the light source brightness of the light source P point corresponding to the low-order illumination scene, sigma (P, gamma) represents the light intensity of the light source P point corresponding to the low-order illumination scene in the (P, gamma) direction, and (P, gamma) represents the angle in the light intensity distribution table of the light source corresponding to the low-order illumination scene, mu represents the ground reflection coefficient,the luminous flux of the light source corresponding to the low-order illumination scene is represented, epsilon represents the included angle between the incident ray vector of the light source corresponding to the low-order illumination scene and the normal of the ground, and H represents the height of the light source.
Optionally, as an optional embodiment of the present invention, the calculating, based on the luminous flux and the light source height, a light source illuminance of a light source corresponding to the low-order lighting scene includes: based on the luminous flux and the light source height, calculating the light source illumination of the light source corresponding to the low-order illumination scene by using the following formula:
；
wherein E represents the illuminance of the light source corresponding to the point P of the light source corresponding to the low-order illumination scene, sigma (P, gamma) represents the light intensity of the light source corresponding to the low-order illumination scene in the (P, gamma) direction, and (P, gamma) represents the angle in the light intensity distribution table of the light source corresponding to the low-order illumination scene,the luminous flux of the light source corresponding to the low-order illumination scene is represented, epsilon represents the included angle between the incident ray vector of the light source corresponding to the low-order illumination scene and the normal of the ground, and H represents the height of the light source.
S4, analyzing the low-order illumination effect of the low-order illumination scene based on the light source brightness, the light source illumination and the light source uniformity, and constructing the optimization instruction of the illumination rule based on the low-order illumination effect.
According to the embodiment of the invention, the low-level illumination effect of the low-level illumination scene is analyzed based on the light source brightness, the light source illuminance and the light source uniformity, and the illumination abnormality can be timely identified and adjusted through the low-level illumination effect, so that the low-level illumination effect of the scene is improved. The low-level illumination effect refers to an effect of simulating low-level illumination on the low-level illumination scene.
As one embodiment of the present invention, the analyzing the low-level lighting effect of the low-level lighting scene based on the light source brightness, the light source illuminance, and the light source uniformity includes: respectively identifying the brightness of the light source, the illuminance of the light source, the uniformity of the light source and the brightness influence relationship, the illuminance influence relationship and the uniformity influence relationship of the low-order illumination scene; analyzing the brightness influence weight, the illuminance influence weight and the uniformity influence weight of the light source brightness, the light source illuminance and the light source uniformity on the low-order illumination scene based on the brightness influence relation, the illuminance influence relation and the uniformity influence relation; and weighting the brightness influence weight, the illumination influence weight and the uniformity influence weight to obtain the low-order illumination effect of the low-order illumination scene.
The brightness influence relation, the illuminance influence relation and the uniformity influence relation refer to influence relations among the brightness of the light source, the illuminance of the light source, the uniformity of the light source and the low-level illumination effect of the low-level illumination scene, and the brightness influence weight, the illuminance influence weight and the uniformity influence weight refer to influence degrees of the brightness of the light source, the illuminance of the light source and the uniformity of the light source on the low-level illumination effect of the low-level illumination scene.
Optionally, the embodiment of the invention constructs the optimization instruction of the lighting rule based on the low-level lighting effect, and can realize better low-level lighting effect by adjusting lighting parameters. The optimization instruction refers to an instruction for adjusting parameters in the lighting rule, such as an instruction for adjusting a light angle, adjusting a light model, and the like. In detail, the optimizing instruction for constructing the lighting rule based on the low-level lighting effect constructs the lighting rule by analyzing abnormal points in the low-level lighting effect, wherein the abnormal points are points with abnormality in the low-level lighting effect, such as uneven light, over-dark light and the like.
S5, optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
According to the embodiment of the invention, the rule parameters of the illumination rule are optimized based on the optimization instruction, so that the optimized illumination rule can be obtained, and the low-order illumination effect of the scene can be improved through parameter adjustment. The optimized lighting rule refers to the lighting rule after the parameters in the lighting rule are adjusted. The rule parameters for optimizing the lighting rule can be rules such as replacement of the lamp, adjustment of the mounting position of the lamp and the like.
Optionally, the embodiment of the present invention performs the low-level illumination of the scene to be low-level illuminated based on the optimized illumination rule, so as to achieve a low-level illumination effect of the scene to be low-level illuminated.
According to the embodiment of the invention, based on the scene data, the three-dimensional modeling scene of the low-level illumination scene to be constructed can simulate low-level illumination through the low-level illumination scene to be constructed, so that the lighting effect of the lamp can be recognized more intuitively; the embodiment of the invention can provide a data basis for constructing the illumination condition for low-level illumination in the later period by identifying the low-level illumination requirement of the three-dimensional modeling scene; optionally, according to the embodiment of the invention, based on the low-level illumination requirement, the illumination rule of the three-dimensional modeling scene is constructed, so that the simulated illumination of the three-dimensional modeling scene can be realized, and the effect of low-level illumination is improved. Therefore, the method for realizing low-order illumination can improve the low-order illumination effect on the target scene.
Fig. 2 is a functional block diagram of a system for implementing low-level illumination according to an embodiment of the present invention.
The system 200 for low-level illumination of the present invention may be installed in an electronic device. Depending on the functions implemented, the system 200 for implementing low-level lighting may include a scene three-dimensional modeling module 201, a lighting rule construction module 202, a scene low-level lighting simulation module 203, a low-level lighting optimization module 204, and a target low-level lighting module 205. The module of the invention, which may also be referred to as a unit, refers to a series of computer program segments, which are stored in the memory of the electronic device, capable of being executed by the processor of the electronic device and of performing a fixed function.
In the present embodiment, the functions concerning the respective modules/units are as follows:
the scene three-dimensional modeling module 201 is configured to collect scene data of a to-be-low-level illumination scene, and construct a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
the lighting rule construction module 202 is configured to identify a low-order lighting requirement of the three-dimensional modeling scene, and construct a lighting rule of the three-dimensional modeling scene based on the low-order lighting requirement;
The scene low-level illumination simulation module 203 is configured to simulate low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene based on the illumination rule, obtain a low-level illumination scene, and respectively calculate light source brightness, light source illuminance and light source uniformity of a light source corresponding to the low-level illumination scene;
the low-level illumination optimization module 204 is configured to analyze a low-level illumination effect of the low-level illumination scene based on the light source brightness, the light source illuminance, and the light source uniformity, and construct an optimization instruction of the illumination rule based on the low-level illumination effect;
the target low-level illumination module 205 is configured to optimize rule parameters of the illumination rule based on the optimization instruction, obtain an optimized illumination rule, and execute low-level illumination of the scene to be low-level illuminated based on the optimized illumination rule.
In detail, each module in the system 200 for implementing low-level illumination in the embodiment of the present invention adopts the same technical means as the method for implementing low-level illumination in the drawings, and can produce the same technical effects, which are not described herein.
An embodiment of the invention provides an electronic device implementing a method for implementing low-level illumination.
Referring to fig. 3, the electronic device may include a processor 30, a memory 31, a communication bus 32, and a communication interface 33, and may further include a computer program stored in the memory 31 and executable on the processor 30, such as a method program for implementing low-order lighting.
The processor may be formed by an integrated circuit in some embodiments, for example, a single packaged integrated circuit, or may be formed by a plurality of integrated circuits packaged with the same function or different functions, including one or more central processing units (Central Processing Unit, CPU), a microprocessor, a digital processing chip, a graphics processor, a combination of various control chips, and the like. The processor is a Control Unit (Control Unit) of the electronic device, connects various components of the entire electronic device using various interfaces and lines, and executes various functions of the electronic device and processes data by running or executing programs or modules stored in the memory (for example, executing programs for implementing low-level lighting, etc.), and calling data stored in the memory.
The memory includes at least one type of readable storage medium including flash memory, removable hard disk, multimedia card, card memory (e.g., SD or DX memory, etc.), magnetic memory, magnetic disk, optical disk, etc. The memory may in some embodiments be an internal storage unit of the electronic device, such as a mobile hard disk of the electronic device. The memory may in other embodiments also be an external storage device of the electronic device, such as a plug-in mobile hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the electronic device. Further, the memory may also include both internal storage units and external storage devices of the electronic device. The memory may be used not only for storing application software installed in an electronic device and various types of data, for example, codes based on a program for realizing low-order lighting, etc., but also for temporarily storing data that has been output or is to be output.
The communication bus may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. The bus is arranged to enable a connection communication between the memory and at least one processor or the like.
The communication interface is used for communication between the electronic equipment and other equipment, and comprises a network interface and a user interface. Optionally, the network interface may include a wired interface and/or a wireless interface (e.g., WI-FI interface, bluetooth interface, etc.), typically used to establish a communication connection between the electronic device and other electronic devices. The user interface may be a Display (Display), an input unit such as a Keyboard (Keyboard), or alternatively a standard wired interface, a wireless interface. Alternatively, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, or the like. The display may also be referred to as a display screen or display unit, as appropriate, for displaying information processed in the electronic device and for displaying a visual user interface.
For example, although not shown, the electronic device may further include a power source (such as a battery) for powering the respective components, and preferably, the power source may be logically connected to the at least one processor through a power management system, so as to perform functions of charge management, discharge management, and power consumption management through the power management system. The power supply may also include one or more of any of a direct current or alternating current power supply, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like. The electronic device may further include various sensors, bluetooth modules, wi-Fi modules, etc., which are not described herein.
It should be understood that the embodiments described are for illustrative purposes only and are not limited to this configuration in the scope of the patent application.
The program stored in the memory of the electronic device for implementing low-level illumination is a combination of instructions that, when executed in the processor, may implement:
acquiring scene data of a to-be-low-level illumination scene, and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
identifying low-order lighting requirements of the three-dimensional modeling scene, and constructing lighting rules of the three-dimensional modeling scene based on the low-order lighting requirements;
Based on the illumination rule, simulating low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene;
analyzing low-level lighting effects of the low-level lighting scene based on the light source brightness, the light source illuminance and the light source uniformity, and constructing an optimization instruction of the lighting rule based on the low-level lighting effects;
and optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
Specifically, the specific implementation method of the above instruction by the processor may refer to descriptions of related steps in the corresponding embodiment of the drawings, which are not repeated herein.
Further, the electronic device integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium.
The computer readable storage medium may be volatile or nonvolatile. For example, the computer readable medium may include: any entity or system capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM).
The present invention also provides a computer readable storage medium storing a computer program which, when executed by a processor of an electronic device, can implement:
acquiring scene data of a to-be-low-level illumination scene, and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
identifying low-order lighting requirements of the three-dimensional modeling scene, and constructing lighting rules of the three-dimensional modeling scene based on the low-order lighting requirements;
based on the illumination rule, simulating low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene;
analyzing low-level lighting effects of the low-level lighting scene based on the light source brightness, the light source illuminance and the light source uniformity, and constructing an optimization instruction of the lighting rule based on the low-level lighting effects;
and optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus, system and method may be implemented in other manners. For example, the system embodiments described above are merely illustrative, e.g., the division of the modules is merely a logical function division, and other manners of division may be implemented in practice.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
The embodiment of the application can acquire and process the related data based on the artificial intelligence technology. Among these, artificial intelligence (Artificial Intelligence, AI) is the theory, method, technique and application system that uses a digital computer or a digital computer-controlled machine to simulate, extend and extend human intelligence, sense the environment, acquire knowledge and use knowledge to obtain optimal results.
Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. Multiple units or systems as set forth in the system claims may also be implemented by means of one unit or system in software or hardware. The terms first, second, etc. are used to denote a name, but not any particular order.
Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. A method for achieving low-level illumination, the method comprising:
acquiring scene data of a to-be-low-level illumination scene, and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
identifying low-order lighting requirements of the three-dimensional modeling scene, and constructing lighting rules of the three-dimensional modeling scene based on the low-order lighting requirements;
based on the illumination rule, simulating low-level illumination of the scene to be low-level illuminated by using the three-dimensional modeling scene to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene;
analyzing low-level lighting effects of the low-level lighting scene based on the light source brightness, the light source illuminance and the light source uniformity, and constructing an optimization instruction of the lighting rule based on the low-level lighting effects;
and optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
2. The method for implementing low-level lighting according to claim 1, wherein the constructing a three-dimensional modeling scene of the scene to be low-level illuminated based on the scene data comprises:
Extracting scene point cloud data and scene images in the scene data;
constructing a three-dimensional structure model of the to-be-low-level illumination scene based on the scene point cloud data;
extracting texture features of the scene image;
and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the texture features and the three-dimensional structure model.
3. The method for implementing low-level illumination according to claim 2, wherein the constructing the three-dimensional structure model of the scene to be low-level illuminated based on the scene point cloud data comprises:
constructing a space coordinate system of the scene point cloud data;
based on the space coordinate system, calculating curve coordinates of data points corresponding to the scene point cloud data by using the following formula:
；
wherein (x, y, z) represents the curve coordinate of the a-th data point in the scene point cloud data in a space coordinate system, and x a Representing the value of the a-th data point in the scene point cloud data on the x axis of a space coordinate system, y a Representing the value of the a-th data point in the scene point cloud data on the y axis of a space coordinate system, and z a Representing the value of the a-th data point in the scene point cloud data on the z-axis of a space coordinate system, sigma a The weight coefficient of an a-th data point in the scene point cloud data is represented, and S represents the number of data points corresponding to the scene point cloud data;
Marking a reconstruction curved surface of the scene point cloud data based on the curve coordinates;
and constructing a three-dimensional structure model of the to-be-low-level illumination scene based on the reconstructed curved surface.
4. The method for implementing low-level illumination of claim 2, wherein the extracting texture features of the scene image comprises:
constructing a scene image co-occurrence matrix of the scene image;
based on the scene image co-occurrence matrix, pixel pair correlation values for the scene image are calculated using the following formula:
；
wherein Cla represents a pixel pair correlation value of the scene image, GLCM (r, v) represents a frequency or number of occurrences of a pixel pair of gray levels r and v, r x v represents a product of gray levels r and v, ρx represents a row mean value of the scene image co-occurrence matrix, ρy represents a column mean value of the scene image co-occurrence matrix, σx represents a row standard deviation of the scene image co-occurrence matrix, and σy represents a column standard deviation of the scene image co-occurrence matrix;
analyzing texture information of the scene image based on the pixel pair correlation values;
and extracting texture features of the scene image based on the texture information.
5. The method for implementing low-level lighting of claim 1, wherein the identifying low-level lighting requirements of the three-dimensional modeled scene comprises:
Identifying a spatial structure of the three-dimensional modeling scene;
analyzing the illumination condition of the three-dimensional modeling scene based on the spatial structure;
and determining low-order lighting requirements of the three-dimensional modeling scene based on the lighting conditions.
6. The method for implementing low-level illumination according to claim 1, wherein the calculating the light source brightness, the light source illuminance, and the light source uniformity of the light source corresponding to the low-level illumination scene respectively includes:
identifying luminous flux of a light source corresponding to the low-order illumination scene;
calculating the light source height of a light source corresponding to the low-level illumination scene;
calculating the light source brightness of the light source corresponding to the low-order illumination scene based on the luminous flux and the light source height;
calculating the light source illumination of the light source corresponding to the low-level illumination scene based on the luminous flux and the light source height;
based on the light source brightness, calculating the light source uniformity of the light source corresponding to the low-order illumination scene by using the following formula:
；
wherein u represents the uniformity of the light source corresponding to the light source of the low-order illumination scene, E min Representing minimum brightness of light source corresponding to low-order illumination scene, E av Representing the average brightness of the light source corresponding to the low-order illumination scene.
7. The method for achieving low-level illumination of claim 6, wherein said calculating a light source brightness of a light source corresponding to the low-level illumination scene based on the luminous flux and the light source height comprises:
based on the luminous flux and the light source height, calculating the light source brightness of the light source corresponding to the low-order illumination scene by using the following formula:
；
wherein E represents the light source brightness of the light source P point corresponding to the low-order illumination scene, sigma (P, gamma) represents the light intensity of the light source P point corresponding to the low-order illumination scene in the (P, gamma) direction, and (P, gamma) represents the angle in the light intensity distribution table of the light source corresponding to the low-order illumination scene, mu represents the ground reflection coefficient,the luminous flux of the light source corresponding to the low-order illumination scene is represented, epsilon represents the included angle between the incident ray vector of the light source corresponding to the low-order illumination scene and the normal of the ground, and H represents the height of the light source.
8. The method for achieving low-level illumination of claim 6, wherein said calculating a light source illuminance of a light source corresponding to the low-level illumination scene based on the luminous flux and the light source height comprises:
based on the luminous flux and the light source height, calculating the light source illumination of the light source corresponding to the low-order illumination scene by using the following formula:
；
Wherein E represents the illuminance of the light source corresponding to the point P of the light source corresponding to the low-order illumination scene, sigma (P, gamma) represents the light intensity of the light source corresponding to the low-order illumination scene in the (P, gamma) direction, and (P, gamma) represents the angle in the light intensity distribution table of the light source corresponding to the low-order illumination scene,the luminous flux of the light source corresponding to the low-order illumination scene is represented, epsilon represents the included angle between the incident ray vector of the light source corresponding to the low-order illumination scene and the normal of the ground, and H represents the height of the light source.
9. The method for achieving low-level illumination of claim 1, wherein the analyzing the low-level illumination effect of the low-level illumination scene based on the light source brightness, the light source illuminance, and the light source uniformity comprises:
respectively identifying the brightness of the light source, the illuminance of the light source, the uniformity of the light source and the brightness influence relationship, the illuminance influence relationship and the uniformity influence relationship of the low-order illumination scene;
analyzing the brightness influence weight, the illuminance influence weight and the uniformity influence weight of the light source brightness, the light source illuminance and the light source uniformity on the low-order illumination scene based on the brightness influence relation, the illuminance influence relation and the uniformity influence relation;
And weighting the brightness influence weight, the illumination influence weight and the uniformity influence weight to obtain the low-order illumination effect of the low-order illumination scene.
10. A system for achieving low-level illumination, characterized by performing a method for achieving low-level illumination according to any one of claims 1-9, the system comprising:
the scene three-dimensional modeling module is used for collecting scene data of a to-be-low-level illumination scene and constructing a three-dimensional modeling scene of the to-be-low-level illumination scene based on the scene data;
the illumination rule construction module is used for identifying low-order illumination requirements of the three-dimensional modeling scene and constructing illumination rules of the three-dimensional modeling scene based on the low-order illumination requirements;
the scene low-level illumination simulation module is used for simulating low-level illumination of the scene to be low-level illuminated by utilizing the three-dimensional modeling scene based on the illumination rule to obtain a low-level illuminated scene, and respectively calculating the light source brightness, the light source illuminance and the light source uniformity of a light source corresponding to the low-level illuminated scene;
the low-order illumination optimization module is used for analyzing the low-order illumination effect of the low-order illumination scene based on the light source brightness, the light source illumination and the light source uniformity and constructing an optimization instruction of the illumination rule based on the low-order illumination effect;
And the target low-order illumination module is used for optimizing rule parameters of the illumination rule based on the optimization instruction to obtain an optimized illumination rule, and executing low-order illumination of the scene to be low-order illuminated based on the optimized illumination rule.
CN202311845740.0A 2023-12-29 2023-12-29 Method and system for realizing low-level illumination Active CN117500126B (en)

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CN106604496A (en) * 2016-11-24 2017-04-26 海南电力技术研究院 Parking lot illumination system control method based on fuzzy technology
CN107044606A (en) * 2017-03-27 2017-08-15 北京工业大学 A kind of low level lamp and its application in road lighting
CN108167695A (en) * 2017-12-19 2018-06-15 深圳大学 A kind of bad weather accommodation road lighting system
CN112179625A (en) * 2020-09-25 2021-01-05 北京工业大学 Method for measuring and calculating parameters of road low-level illuminating lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106604496A (en) * 2016-11-24 2017-04-26 海南电力技术研究院 Parking lot illumination system control method based on fuzzy technology
CN107044606A (en) * 2017-03-27 2017-08-15 北京工业大学 A kind of low level lamp and its application in road lighting
CN108167695A (en) * 2017-12-19 2018-06-15 深圳大学 A kind of bad weather accommodation road lighting system
CN112179625A (en) * 2020-09-25 2021-01-05 北京工业大学 Method for measuring and calculating parameters of road low-level illuminating lamp

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