CN113473011A - Shooting method, system and storage medium - Google Patents

Shooting method, system and storage medium Download PDF

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Publication number
CN113473011A
CN113473011A CN202110731567.6A CN202110731567A CN113473011A CN 113473011 A CN113473011 A CN 113473011A CN 202110731567 A CN202110731567 A CN 202110731567A CN 113473011 A CN113473011 A CN 113473011A
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Prior art keywords
picture
display
shooting
target
displayed
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CN113473011B (en
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陈鑫
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Guangdong Bay Area Intelligent Terminal Industrial Design And Research Institute Co ltd
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Guangdong Bay Area Intelligent Terminal Industrial Design And Research Institute Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/61—Control of cameras or camera modules based on recognised objects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/61—Control of cameras or camera modules based on recognised objects
    • H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
    • H04N23/632—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Studio Devices (AREA)

Abstract

The invention discloses a shooting method, a shooting system and a storage medium, wherein the method comprises the following steps: acquiring shooting pictures acquired by at least two cameras; recognizing the shooting picture based on a preset display target, and extracting the shooting picture including the display target as a preselected picture; and determining a picture to be displayed from the preselected pictures. The invention can select the shooting picture containing the display target from at least two cameras as the picture to be displayed, thereby saving the operation of manually switching the cameras by a user and effectively improving the user experience. Meanwhile, the display picture can be automatically switched according to the position of the user, so that the shooting blind area is eliminated, and the effect of automatically selecting the best video source is achieved.

Description

Shooting method, system and storage medium
Technical Field
The present invention relates to the field of image processing technologies, and in particular, to a shooting method, a shooting system, and a storage medium.
Background
Today at the continuous development of electronic equipment, smart machine's shooting function is more and more powerful, and people can carry out video conversation, videoconference and live video with the help of smart machine, has both richened people's amusement life, also provides convenient working method for people.
When the shooting function of the intelligent device is used, one of the cameras on the device is usually selected, and when necessary, a user can manually switch the cameras, for example, switching between a front camera and a rear camera of a smart phone. Such a replacement method is cumbersome to operate, resulting in poor user experience.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a shooting method, a shooting system and a storage medium, and solves the problems that in the prior art, different cameras need to be manually replaced, and the replacement mode is complicated to operate, so that the user experience is poor.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a photographing method comprising:
acquiring shooting pictures acquired by at least two cameras;
and identifying the shooting picture based on a preset display target, and determining the shooting picture including the display target as a picture to be displayed.
Optionally, when the number of preselected pictures is greater than or equal to two, the recognizing the captured picture based on the preset display target and including the captured picture of the display target includes:
extracting a shooting picture including a display target into a preselected picture, and determining a picture to be displayed from the preselected picture;
the determining of the picture to be displayed from the preselected pictures comprises the following steps:
calculating an effective picture index of each preselected picture;
and comparing the effective picture indexes, and determining the preselected picture corresponding to the effective picture index with the maximum value as a picture to be displayed.
Optionally, when the display targets are at least two, the determining the to-be-displayed picture from the preselected pictures includes:
judging whether the picture to be displayed covers all display targets;
if so, keeping the picture to be displayed unchanged;
if not, sequentially identifying whether the corresponding preselected images contain all display targets according to the sequence of the effective image indexes from large to small until the preselected images containing all the display targets are identified, and determining the preselected images containing all the display targets as the images to be displayed.
Optionally, when the preselected screen including all the displayed objects is identified, and when the preselected screen including all the displayed objects is not identified, the photographing method further includes:
taking an undisplayed display target in the picture to be displayed as an additional display object;
according to the sequence from large to small of the effective picture index, the preselected picture is sequentially identified based on the additional display object until the preselected picture including the additional display object is identified, and the preselected picture including the additional display object is determined as the additional picture;
and adding the additional picture to a background area in the picture to be displayed.
Optionally, the calculating an effective picture index of each of the captured pictures includes:
when the display target is one, the effective picture index is a unit display index of the display target;
when the number of display targets is at least two, the effective picture index is the sum of unit display indexes of all the display targets.
Optionally, when the display targets are at least two, the calculating the effective picture index of each of the captured pictures includes:
selecting at least one of all the display targets as a primary target, and the rest as secondary targets;
and respectively calculating unit display indexes of the primary target and the secondary target, respectively assigning weighting coefficients to the unit display indexes of the primary target and the secondary target, and then calculating a weighted sum value.
Optionally, the unit display index comprises a display index of a parameter, or
In the display indexes of more than two parameters, weighting and summing values after weighting coefficients are respectively assigned to the display indexes of the parameters;
the display index of the parameters comprises one or more of a proportion parameter of the display target in the shooting picture, a tilt parameter of the display target relative to the camera and a distance parameter between the display target and the camera.
Optionally, the displaying tilt parameters of the target relative to the camera includes:
the ratio of the current value of the number of facial features of the display target in the shooting picture to the total number of the facial features of the display target;
the total number of the facial features of the display target is a preset value; or
And in the historical shooting pictures collected by the cameras, the maximum value of the facial feature number of the display target.
The invention also provides a shooting system for realizing the shooting method, which comprises the following steps:
the acquisition module is used for acquiring shot pictures acquired by at least two cameras;
the processing module is used for identifying the shooting picture based on a preset display target and extracting the shooting picture containing the display target into a preselected picture;
and the determining module is used for determining the picture to be displayed from the preselected pictures.
The present invention also provides a storage medium including computer-readable instructions which, when read and executed by a computer, cause the computer to execute the photographing method as described in any one of the above.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a shooting method, a shooting system and a storage medium, which can select a shooting picture containing a display target from at least two cameras as a picture to be displayed, thereby saving the operation of manually switching the cameras by a user and effectively improving the user experience. Meanwhile, the display picture can be automatically switched according to the position of the user, so that the shooting blind area is eliminated, and the effect of automatically selecting the best video source is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic view of an application scenario of a shooting method provided by the present invention;
FIG. 2 is a flow chart of a photographing method according to the present invention;
fig. 3 is a flowchart of step S2 in a photographing method according to the present invention;
fig. 4 is another flowchart of step S2 in a photographing method according to the present invention;
FIG. 5 is a flowchart illustrating a further step of a photographing method according to the present invention;
FIG. 6 is a schematic diagram of a photographing method according to the present invention;
fig. 7 is a schematic view of another application scenario of a shooting method provided by the present invention;
FIG. 8 is a diagram illustrating a final display frame of a photographing method according to the present invention;
fig. 9 is a schematic structural diagram of a photographing system according to the present invention.
In the above figures: 10. an acquisition module; 20. a processing module; 30. and determining a module.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to facilitate understanding of the technical solution of the present invention, a brief introduction is made to the application scenario of the present invention:
due to the popularization of smart homes, cameras such as mobile phones, notebooks, monitors, smart watches and other intelligent wearable devices are possibly mounted on various electronic products. In practice, users often cannot realize the maximum utilization of resources of the cameras, and mostly use a handheld single device, which results in the waste of camera resources.
As shown in fig. 1, it is assumed that a notebook, a television, a mobile phone and a monitor are disposed in a room, wherein the notebook, the television and the monitor each include one camera, and the mobile phone includes two cameras, namely a front camera and a rear camera, which are disposed in the room. When a person sits on the sofa and uses the mobile phone placed on the table to carry out video call, the person can only stay in the area A to bring inconvenience to the activities of the user when the person wants to keep going out of the mirror under the condition that the person does not hold the mobile phone and does not manually adjust the mobile phone to the rear camera.
In addition, even if a plurality of cameras are used for shooting at different angles during video conferences or live video broadcasting, if a plurality of people simultaneously shoot a scene of the video conference, one or two people still can not go out of the scene due to shooting blind areas.
The invention aims to provide a shooting scheme for switching final display pictures based on collected pictures of two or more cameras, which can realize random activities in the coverage area of all the cameras in the single-person video call process and can also realize complete display of all concerned objects in a multi-person video conference as far as possible.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
Referring to fig. 1 and fig. 2 in combination, an embodiment of the present invention provides a shooting method, including:
s1, acquiring shot pictures acquired by at least two cameras;
s2, recognizing the shot picture based on the preset display target, and extracting the shot picture containing the display target into a preselected picture;
and S3, determining the picture to be displayed from the pre-selected pictures.
The method is characterized in that a notebook, a television, a mobile phone and a monitor are arranged in a room, wherein the notebook, the television and the monitor respectively comprise a camera, and the mobile phone comprises two front cameras and two rear cameras, namely five cameras in the room.
Based on the steps S1-S3, the shot pictures collected by all the cameras are uploaded to the cloud, the uploaded shot pictures are analyzed and identified based on the preset display target, whether the display target is included in each shot picture or not is judged, and the shot pictures including the display target are extracted as the preselected pictures. And finally, determining a picture to be displayed from the preselected pictures, and returning and using the picture to be displayed for final display.
It is understood that the number of display targets may be one or at least two; when the display target is one, only the shooting picture including the display target needs to be selected as the pre-selection picture.
As shown in fig. 3, in step S2, when at least two display targets are included in the captured images collected by the multiple cameras, the determination of the image to be displayed is implemented by the following steps:
s21, calculating the effective picture index of each preselected picture;
and S22, comparing the effective picture indexes, and determining the preselected picture corresponding to the effective picture index with the maximum value as the picture to be displayed.
When the display target is one, the effective picture index is a unit display index of the display target; when the display targets are at least two, the effective screen index is the sum of the unit display indexes of all the display targets. It is understood that the display target may be a person in the photographed picture, or may be an animal, a plant, or other furnishing object. In addition, in the case where the display target is a human, a plurality of persons may appear in the captured image, but the display target may be a specific one or a plurality of persons.
In one optional implementation manner of this embodiment, the unit display index is a display index of a parameter, such as a scale parameter of the display target in the shooting picture, a tilt parameter of the display target relative to the camera, or a distance parameter between the display target and the camera.
In another optional implementation manner of this embodiment, the unit display index is a weighted sum value obtained by respectively assigning a weighting coefficient to the display index of each parameter in the display indexes of more than two parameters; for example, a scale parameter of the display target in the shooting picture, a tilt parameter of the display target relative to the camera, and a distance parameter between the display target and the camera are respectively given with weight coefficients, and then a unit display index is obtained through weighted summation.
It is understood that the display index of the parameter may be increased or decreased according to the focus of the display effect.
Assuming that the display target is a person, the calculation of the unit display index will be briefly described below by taking a scale parameter of the display target occupying the shooting picture and a tilt parameter of the display target relative to the camera as examples:
in this embodiment, a ratio parameter of the display target to the shooting picture is subjected to digitalized calculation. For example, if the camera is currently a megapixel S1, the display target occupies thirty thousand pixels in the shot picture S2, and the proportion parameter P1 of the display target occupies the shot picture S2/S1 is 30%.
The tilt parameter of the display object relative to the camera may also be understood as the inclination of the human face relative to the camera. The tilt parameter of the display target relative to the camera may be calculated as follows: and calculating the ratio of the current value of the number of the facial features of the display target in the shooting picture to the total number of the facial features of the display target.
Specifically, the face recognition technology can be assisted to realize the calculation of the inclination parameters of the display target relative to the camera. For example, if the face recognition system acquires 20 total facial features N1 of the display targets and only the current value N2 of the facial feature count of 13 display targets is captured in the image, the tilt parameter P2 of the display targets relative to the camera is N2/N1 is 65%.
As shown in fig. 7, when the display target a is located in the area 4, the shooting pictures collected by the television camera and the monitoring camera can both include the display target. When showingWhen the display target A is positioned at the position shown in the figure and faces the direction indicated by the arrow, the display target accounts for about 20 percent of the proportion parameter of the shooting picture, and the current value of the number of the facial features of the display target is 5; thus, the effective display index R for a television cameraTelevision receiverThe method specifically comprises the following steps:
Rtelevision receiver＝20％*0.5+5/20*0.5＝22.5％。
For the monitoring picture, the proportion parameter of the display target in the shooting picture is about 20%, and the current value of the number of the facial features of the display target is 15; therefore, the effective display index R for the monitoring pictureMonitoringThe method specifically comprises the following steps:
Rmonitoring＝20％*0.5+15/20*0.5＝47.5％。
And because the display effect of monitoring is better than that of the television camera when the ratio of 47.5% to 22.5% is higher, the shot picture collected by monitoring is taken as the picture to be displayed.
In this embodiment, the total number of the facial features of the display target is a preset value, and a face recognition system can be adopted in advance to recognize different users and prestore the different users. In addition, the total number of the facial features of the display target can also be the maximum value of the number of the facial features of the display target in a historical shooting picture collected by each camera, and when the display target is a new user who does not input information, the facial features of the display target can be continuously supplemented and perfected in the shooting process of each camera, so that the inclination parameters of the new user relative to the cameras can be calculated under the condition that the information is not prestored.
Then, a weighting factor W1 is given to the proportion parameter of the display target in the shooting picture, and a weighting factor W2 is given to the inclination parameter of the display target relative to the camera; it is understood that the values of W1 and W2 may be adjusted according to actual conditions, for example, if the ratio of the person of interest to the screen is compared, W1 may be made larger than W2. In this embodiment, taking W1 and W2 as an example, both set to 0.5, the effective frame index is calculated as follows: the effective picture index R-P1-W1 + P2-W2-47.5%.
Based on the foregoing steps, the shooting method provided in this embodiment can flexibly select a picture to be displayed, which has a display effect more meeting actual requirements, from a plurality of pre-selected pictures by calculating a dynamic effective picture index, and can ensure that a display object can be displayed in the picture with expected display distance, angle, duty ratio and other effects, so as to be suitable for various application scenarios, such as video conferences, live video broadcasting, stage direct shooting moving mirrors, and the like.
Further, in the aforementioned video conference, live video, and live stage shooting mirror motion, the number of display targets may be at least two; at this time, when the effective picture index of each shot picture is calculated, the unit display indexes R of all the display targets are summed up.
Specifically, at least one of all the display targets may be selected as a primary target, and the others may be selected as secondary targets; and respectively calculating unit display indexes of the main target and the secondary target, respectively assigning weighting coefficients to the unit display indexes of the main target and the secondary target, and then calculating a weighted sum value. The main target is displayed preferentially by distributing the weight coefficient of the display target according to the importance degree.
It can be understood that, in each shot picture, at least one display object may be omitted, but at this time, the shot picture still has a higher effective picture index because the parameters of another display object have a higher display index. At this time, if the picture to be displayed is determined simply according to the effective picture index, the final display picture may lack some display targets.
Referring to fig. 4 to fig. 6, further, in order to ensure that all the display targets can be displayed in the final display frame, the step S2 further includes the following steps:
s23, judging whether the picture to be displayed contains all display targets, if so, executing a step S24; if not, go to step S25;
s24, keeping the picture to be displayed unchanged;
and S25, sequentially identifying whether the corresponding preselected images contain all the display targets according to the sequence of the effective image indexes from large to small until the preselected images containing all the display targets are identified, and determining the preselected images containing all the display targets as the images to be displayed.
Based on the steps S23-S25, omission of display targets in the final display screen can be avoided.
Based on the steps, after the picture to be displayed is determined and before the picture to be displayed is returned and displayed, whether the display target is omitted in the picture to be displayed is detected, specifically, the detection can be realized through the unit display index value of each display target, and if the numerical value of one unit display index is 0, the omitted display target in the picture to be displayed can be judged.
In this case, whether each preselected screen has missing display targets may be sequentially determined in descending order based on the unit display index of each display target until the unit display index of each display target in one preselected screen is found to be not zero, and the preselected screen including all the display targets may be determined as the screen to be displayed.
It is to be understood that, when none of the captured pictures includes all the display targets, the captured picture including the largest number of display targets may be determined as the picture to be displayed, so as to display as many display targets as possible.
The number of shot images with the largest number of targets may be one or a plurality of shot images arranged in parallel. For example, assuming that the number of display targets is six, two of five shot pictures collected by five cameras encompass three display targets, and the remaining shot pictures all encompass five display targets, three shot pictures that encompass five display targets are selected as the preselected picture in this step.
Further, when a preselected screen encompassing all the display targets is not recognized in step S25, in order to achieve complete display of the entire display targets as much as possible, the photographing method further includes the steps of:
s41, keeping the picture to be displayed unchanged;
s42, taking the display target which is not displayed in the picture to be displayed as an additional display object;
s43, identifying the preselected picture based on the additional display objects in sequence according to the sequence of the effective picture indexes from large to small until the preselected picture covering the additional display objects is identified, and determining the preselected picture covering the additional display objects as the additional picture;
and S44, adding the additional picture to the background area in the picture to be displayed.
Based on steps S41-S44, a display target that is not originally displayed on the screen to be displayed can be additionally displayed. It is understood that the background area in step S44 is an unmanned place in the screen to avoid the occlusion of other display targets.
As shown in fig. 7, if the display target is three persons in the image, two persons of the three persons are only located in the shooting areas of the television camera and the monitoring camera respectively, and another person can be shot by the television camera and the monitoring camera at the same time, but no shooting picture of the camera can contain the three persons at the same time.
In this embodiment, the shot pictures including the most displayed target objects may be selected as the preselected pictures, in this example, the shot pictures respectively collected by the television camera and the monitoring camera; and then, respectively calculating effective display indexes of the two shot pictures, and extracting the shot pictures collected by the television camera as pictures to be displayed according to results. The picture to be displayed with the highest effective index determined before can be directly used.
Further, as shown in fig. 8, a display target that is not displayed in the to-be-displayed picture is taken as an additional display object, a shot picture collected by a monitoring camera that encompasses the additional display object is extracted as an additional picture, and the additional picture is added to a background area in the to-be-displayed picture, so as to form a final display picture.
In this embodiment, the effective display index is calculated in real time according to the shot pictures acquired by the cameras, and the shot picture corresponding to the effective display index with the highest numerical value is selected at each moment according to the result to be displayed.
Based on the shooting method provided by each embodiment, two or more cameras can be reasonably applied, and the situation that the camera resources are vacant is avoided; meanwhile, the camera with the best display effect can be selected as a video source, manual switching of the camera is not needed, high-quality picture display can be efficiently and conveniently achieved, user experience is effectively improved, and the video shooting function is enriched.
As shown in fig. 9, the present invention also provides a shooting system for implementing the shooting method as described above, including:
the acquisition module 10 is used for acquiring shot pictures acquired by at least two cameras;
the processing module 20 is used for identifying a shooting picture based on a preset display target and extracting the shooting picture containing the display target into a preselected picture;
and the determining module 30 is used for determining the picture to be displayed from the preselected pictures.
In this embodiment, when at least two display targets are included in the captured images collected by the multiple cameras, the processing module 20 is further configured to:
calculating effective picture indexes of all preselected pictures; and comparing the effective picture indexes, and determining the preselected picture corresponding to the effective picture index with the maximum value as the picture to be displayed.
Further, in order to ensure that all display targets can be displayed in the final display frame, the processing module 20 is further configured to:
judging whether shooting pictures covering all display targets exist or not; extracting the shot pictures covering all the displayed targets as preselected pictures; and extracting the shot picture with the largest number of included display targets as a preselected picture. Therefore, the display target can be prevented from being missed in the final display screen. When none of the shot pictures contains all the display targets, the shot picture containing the largest number of the display targets is extracted as a preselected picture so as to display more display targets as much as possible.
The number of the shot images with the largest number of targets may be one or a plurality of shot images arranged in parallel. For example, assuming that the number of display targets is six, two of five shot pictures collected by five cameras encompass three display targets, and the remaining shot pictures all encompass five display targets, three shot pictures that encompass five display targets are selected as the preselected picture in this step.
Further, when the shot screen including all the display targets cannot be recognized, in order to achieve complete display of the entire display targets as much as possible, the processing module 20 is further configured to:
keeping the picture to be displayed unchanged;
taking an undisplayed display target in a picture to be displayed as an additional display object;
according to the sequence of the effective picture indexes from large to small, the preselected pictures are sequentially identified based on the additional display objects until the preselected pictures including the additional display objects are identified, and the preselected pictures including the additional display objects are determined as the additional pictures;
and adding the additional picture to a background area in the picture to be displayed.
The present invention also provides a storage medium including computer-readable instructions that, when read and executed by a computer, cause the computer to execute the photographing method according to any one of the above.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A photographing method, characterized by comprising:
acquiring shooting pictures acquired by at least two cameras;
and identifying the shooting picture based on a preset display target, and determining the shooting picture including the display target as a picture to be displayed.
2. The shooting method according to claim 1, wherein when the number of preselected pictures is greater than or equal to two, recognizing the shot pictures based on a preset display target, determining the shot pictures including the display target as pictures to be displayed, comprises:
extracting a shooting picture containing a display target into a preselected picture;
calculating an effective picture index of each preselected picture;
and comparing the effective picture indexes, and determining the preselected picture corresponding to the effective picture index with the maximum value as a picture to be displayed.
3. The photographing method according to claim 2, wherein when the display targets are at least two, the photographing method further comprises:
judging whether the picture to be displayed covers all display targets;
if so, keeping the picture to be displayed unchanged;
if not, sequentially identifying whether the corresponding preselected images contain all display targets according to the sequence of the effective image indexes from large to small until the preselected images containing all the display targets are identified, and determining the preselected images containing all the display targets as the images to be displayed.
4. The photographing method according to claim 3, wherein when a preselected screen including all display targets is not recognized, the photographing method further comprises:
keeping the picture to be displayed unchanged;
taking display targets which are not included in the picture to be displayed as additional display objects;
according to the sequence from large to small of the effective picture index, the preselected picture is sequentially identified based on the additional display object until the preselected picture including the additional display object is identified, and the preselected picture including the additional display object is determined as the additional picture;
and adding the additional picture to a background area in the picture to be displayed.
5. The method according to claim 2, wherein said calculating an effective picture index for each of said captured pictures comprises:
when the display target is one, the effective picture index is a unit display index of the display target;
when the number of display targets is at least two, the effective picture index is the sum of unit display indexes of all the display targets.
6. The photographing method according to claim 5, wherein when the display target is at least two, the calculating of the effective picture index for each of the photographing pictures includes:
selecting at least one of all the display targets as a primary target, and the rest as secondary targets;
and respectively calculating unit display indexes of the primary target and the secondary target, respectively assigning weighting coefficients to the unit display indexes of the primary target and the secondary target, and then calculating a weighted sum value.
7. Photographing method according to claim 5, wherein the unit display index includes a display index of a parameter, or
In the display indexes of more than two parameters, weighting and summing values after weighting coefficients are respectively assigned to the display indexes of the parameters;
the display index of the parameters comprises one or more of a proportion parameter of the display target in the shooting picture, a tilt parameter of the display target relative to the camera and a distance parameter between the display target and the camera.
8. The photographing method according to claim 7, wherein the displaying of the tilt parameter of the object with respect to the camera includes:
the ratio of the current value of the number of facial features of the display target in the shooting picture to the total number of the facial features of the display target;
the total number of the facial features of the display target is a preset value; or
And in the historical shooting pictures collected by the cameras, the maximum value of the facial feature number of the display target.
9. A photographing system for implementing the photographing method according to any one of claims 1 to 8, comprising:
the acquisition module is used for acquiring shot pictures acquired by at least two cameras;
the processing module is used for identifying the shooting picture based on a preset display target;
and the determining module is used for determining the shooting picture containing the display target as the picture to be displayed.
10. A storage medium characterized by comprising computer-readable instructions which, when read and executed by a computer, cause the computer to execute the photographing method according to any one of claims 1 to 8.
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