CN109862283A - A kind of time for exposure automatic adjusting method and device - Google Patents

A kind of time for exposure automatic adjusting method and device Download PDF

Info

Publication number
CN109862283A
CN109862283A CN201910122840.8A CN201910122840A CN109862283A CN 109862283 A CN109862283 A CN 109862283A CN 201910122840 A CN201910122840 A CN 201910122840A CN 109862283 A CN109862283 A CN 109862283A
Authority
CN
China
Prior art keywords
exposure
time
illuminance
preset value
electronic equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910122840.8A
Other languages
Chinese (zh)
Inventor
许大红
石江涛
徐伟
张晓龙
张�杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Taihe Optoelectronic Technology Co Ltd
Original Assignee
Hefei Taihe Optoelectronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hefei Taihe Optoelectronic Technology Co Ltd filed Critical Hefei Taihe Optoelectronic Technology Co Ltd
Priority to CN201910122840.8A priority Critical patent/CN109862283A/en
Publication of CN109862283A publication Critical patent/CN109862283A/en
Pending legal-status Critical Current

Links

Landscapes

  • Studio Devices (AREA)

Abstract

The embodiment of the present invention proposes a kind of time for exposure automatic adjusting method and device, is related to image procossing and field of intelligent control technology.Time for exposure automatic adjusting method is applied to electronic equipment, and electronic equipment is electrically connected with illuminance sensor, and illuminance sensor includes: to obtain exposure adjustment order for obtaining illuminance, method;Order, which is adjusted, according to exposure receives illuminance;The time for exposure is calculated according to illuminance, the first preset value and the second preset value.The time for exposure automatic adjusting method and device can obtain the image of high quality in the open space that ambient light changes.

Description

A kind of time for exposure automatic adjusting method and device
Technical field
The present invention relates to image procossings and field of intelligent control technology, adjust automatically in particular to a kind of time for exposure Adjusting method and device.
Background technique
Visual identity, positioning and measurement are carried out to target object using face battle array industrial camera, has and is extremely widely applied. But in practical applications, industrial camera often acquires image to target object in open environment, industrial camera acquisition Image is highly susceptible to the interference of ambient light (such as sunlight, light etc.) variation, leads to image quality decrease (such as image mistake It is bright or excessively dark), cause visual identification algorithm stability to decline to a great extent even and fail, can not accurately obtain the feature letter of target object Breath.In order to guarantee that the correctness and high reliability of visual identification algorithm, common way are to do corresponding light to target object Shielding or polishing measure, are placed in enclosure space for camera and the target object that is taken.But this measure can lead to system complexity It improves and maintainability reduces, and in practical applications due to space limitation and design difficulty etc., it can not be to environment light Line is effectively covered.
Summary of the invention
The purpose of the present invention is to provide a kind of time for exposure automatic adjusting method and device, the time for exposure adjust automaticallies Method and device can obtain the image of high quality in the open space that ambient light changes.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows:
In a first aspect, being applied to electronic equipment, electricity the embodiment of the invention provides a kind of time for exposure automatic adjusting method Sub- equipment is electrically connected with illuminance sensor, and illuminance sensor includes: to obtain exposure adjustment life for obtaining illuminance, method It enables;Order, which is adjusted, according to exposure receives illuminance;When calculating exposure according to illuminance, the first preset value and the second preset value Between.
Second aspect, the embodiment of the invention also provides a kind of time for exposure automatic regulating apparatuses, are applied to electronic equipment, Electronic equipment is electrically connected with illuminance sensor, and for illuminance sensor for obtaining illuminance, device includes: acquiring unit, is used Adjustment order is exposed in obtaining;Receiving unit receives illuminance for adjusting order according to exposure;Computing unit is used for basis Illuminance, the first preset value and the second preset value calculate the time for exposure.
A kind of time for exposure automatic adjusting method provided in an embodiment of the present invention and device expose adjustment life by obtaining It enables, order is adjusted according to exposure and receives illuminance, when calculating exposure according to illuminance, the first preset value and the second preset value Between.Camera is set to have in ambient light to enhance the ambient light adaptability of camera by adjusting the time for exposure of camera In the open space of variation, the image of high quality is obtained.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the application environment signal of time for exposure automatic adjusting method provided in an embodiment of the present invention and device Figure;
Fig. 2 shows the block diagrams of the electronic equipment provided in Fig. 1;
Fig. 3 shows the first pass schematic diagram of time for exposure automatic adjusting method provided in an embodiment of the present invention;
Fig. 4 shows the flow diagram of the sub-step of step S1 in Fig. 3;
Fig. 5 shows the second procedure schematic diagram of time for exposure automatic adjusting method provided in an embodiment of the present invention;
Fig. 6 shows the structural block diagram of time for exposure automatic regulating apparatus provided in an embodiment of the present invention.
Icon: 1- electronic equipment;11- processor;12- memory;13- bus;14- input/output interface;When 15- exposes Between automatic regulating apparatus;151- acquiring unit;1511- obtains subelement;1512- identifies subelement;1513- judgment sub-unit; 152- receiving unit;153- computing unit;1531- lower limit value computation subunit;1532- upper limit value computation subunit;2- illumination Spend sensor;3- host computer;4- camera.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
Fig. 1 is please referred to, one kind for time for exposure automatic adjusting method provided in an embodiment of the present invention and device is implementable Application environment schematic diagram, the time for exposure automatic adjusting method and device be applied to electronic equipment 1, electronic equipment 1 with it is upper Machine 3, camera 4 and illuminance sensor 2 are electrically connected.
It referring to figure 2., is the structural block diagram of electronic equipment 1 shown in Fig. 1, electronic equipment 1 includes processor 11, storage Device 12, bus 13 and input/output interface 14, processor 11, memory 12 and input/output interface 14 are connected by bus 13 It connects.Processor 11 is for executing the executable module stored in memory 12, such as computer program.
Processor 11 may be a kind of IC chip, the processing capacity with signal.During realization, when exposure Between each step of automatic adjusting method can pass through the integrated logic circuit of the hardware in processor 11 or the finger of software form It enables and completing.Above-mentioned processor 11 can be general processor, including central processing unit (Central Processing Unit, Abbreviation CPU), network processing unit 11 (Network Processor, abbreviation NP) etc.;It can also be digital signal processor 11 (Digital Signal Processor, abbreviation DSP), specific integrated circuit (Application Specific Integrated Circuit, abbreviation ASIC), field programmable gate array (Field-Programmable Gate Array, Abbreviation FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.
Memory 12 may include high-speed random access memory (RAM:Random Access Memory), it is also possible to also Including nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.
Bus 13 can be ISA (Industry Standard Architecture) bus, PCI (Peripheral Component Interconnect) bus or EISA (Extended Industry Standard Architecture) be total Line etc..It is only indicated with a four-headed arrow in Fig. 2, it is not intended that an only bus 13 or a type of bus 13.
Electronic equipment 1 passes through its of the realization of at least one input/output interface 14 (can be wired or wireless) and outside Communication connection between its equipment.Input/output interface 14 includes Ethernet interface and serial ports, and electronic equipment 1 is connect by Ethernet Mouth is electrically connected with host computer 3 and camera 4, and electronic equipment 1 is also electrically connected by serial ports with illuminance sensor 2.
Memory 12 is for storing program, such as time for exposure automatic regulating apparatus 15.Time for exposure automatic regulating apparatus 15 include that at least one can be stored in the memory 12 or be solidificated in electronics in the form of software or firmware (firmware) Software function module in the operating system (operating system, OS) of equipment 1.Processor 11 is receiving host computer 3 Candid photograph order after, execute described program to realize time for exposure automatic adjusting method.
In the present embodiment, host computer 3 is equipped with upper computer software, for issuing candid photograph order to electronic equipment 1 and receiving Recognition result;Camera 4 can use industrial camera, for photographic subjects object image information and place is sent to by bus 13 Reason device 11 is handled, or is sent to memory 12 and is stored;Illuminance sensor 2 is for acquiring 4 local environment of camera Lighting information, and illuminance is obtained according to Lighting information, illuminance is sent to processor 11 and is handled by bus 13, Or it is sent to memory 12 and is stored;Electronic equipment 1 can use industrial personal computer;Wherein, electronic equipment 1 and camera 4 can be with Setting is integrated, and can also be separated and is independently arranged.
Referring to figure 3., a kind of process that Fig. 3 shows time for exposure automatic adjusting method provided in an embodiment of the present invention is shown It is intended to, which is applied to electronic equipment 1 shown in Fig. 1, in embodiments of the present invention, the exposure Time automatic adjusting method the following steps are included:
Step S1 obtains exposure adjustment order.
Referring to figure 4., in the present embodiment, step S1 includes following sub-step:
Step S11 obtains image information.
In the present embodiment, before obtaining image information, camera 4, illuminance sensor 2, host computer 3 and electronic equipment 1 first electrifying startup, and host computer 3 and electronic equipment 1 enter operating system after electrifying startup.Electronic equipment 1 enters operation Internal initialization, i.e., energy between electronic equipment 1 and camera 4, illuminance sensor 2 and host computer 3 are realized according to configuration after system Normal communication.Between electronic equipment 1 and camera 4 after energy normal communication, electronic equipment 1 can send the automatic exposure of disabling to camera 4 Optical mode order, so that camera 4 enters customized exposure mode.When electronic equipment 1 can also send default exposure to camera 4 simultaneously Between, camera 4 is standby after receiving the default time for exposure.Order is captured when host computer 3 is sent to electronic equipment 1 Afterwards, electronic equipment 1 can control the image information that camera 4 obtains target object under the default time for exposure, and by the image information It is sent to electronic equipment 1.
Step S12 carries out goal-selling identification from image information.
In the present embodiment, electronic equipment 1 can carry out the wheel of goal-selling according to image recognition algorithm from image information The identification of the number of the wide, position of goal-selling and goal-selling, according to the position of the profile of goal-selling, goal-selling with And the number of goal-selling determines whether correctly to identify goal-selling.Certainly, in other embodiments, can also use Other methods carry out the identification of goal-selling.For example, goal-selling can be set to often in the application scenarios of goods sorting A logos on a cargo, target object is stack, which is made of multiple cargos.Camera 4 is in default exposure Between the lower image information for obtaining stack top layer, and the image information of stack top layer is sent to electronic equipment 1, electronic equipment 1 Logos identical with goal-selling profile are found out from the image information of stack top layer according to image recognition algorithm.If can find Logos identical with goal-selling profile obtain position and the number of logos identical with goal-selling profile, root Whether the logos obtained before judging again according to the position of logos identical with goal-selling profile and number are correct, And then realize the identification of goal-selling.
Step S13 obtains exposure adjustment order if not identifying goal-selling correctly.
In the present embodiment, if electronic equipment 1 fails correctly to identify goal-selling according to image information, illustrate camera 4 The image information obtained under the default time for exposure it is of poor quality so that electronic equipment 1 can not identify it is pre- in image information If target, then need to be adjusted the time for exposure, electronic equipment 1 is corresponding to generate exposure adjustment order.
In the present embodiment, if electronic equipment 1 can correctly identify goal-selling according to image information, illustrate that camera 4 exists The quality of the image information obtained under the default time for exposure is good, does not need to be adjusted the time for exposure of camera 4, electronics is set Standby 1 can control camera 4 and continue to preset the acquisition that the time for exposure carries out image information.Meanwhile electronic equipment 1 can also will be just Really identify that the recognition result of goal-selling is sent to host computer 3.
Step S2 adjusts order according to exposure and receives illuminance.
In the present embodiment, if electronic equipment 1 fails correctly to identify goal-selling according to image information, electronic equipment 1 Exposure adjustment order can be then generated, electronic equipment 1 sends reading order, light to illuminance sensor 2 according to exposure adjustment order Illuminance transducer 2 sends illuminance to electronic equipment 1 according to reading order.
Step S3 calculates the time for exposure according to illuminance, the first preset value and the second preset value.
In the present embodiment, the value model of time for exposure is calculated according to illuminance and the first preset value for electronic equipment 1 The lower limit value enclosed;The upper limit value of the value range of time for exposure is calculated according to illuminance and the second preset value.It is appreciated that Electronic equipment 1 is divided by the first preset value and illuminance to obtain the lower limit value of the value range of time for exposure;Electronic equipment 1 is by Two preset values and illuminance are divided by obtain the upper limit value of the value range of time for exposure.Wherein, the first preset value and second is preset Value is fitted under each frequency modulated light illumination according to the time for exposure inverse upper limit, time for exposure inverse mean value and time for exposure inverse lower limit It obtains.
Specifically, the value range of time for exposure is obtained using following formula:
Wherein, 0.5 the first preset value is indicated;2.1 indicate the second preset value;A indicates illuminance;T indicates the time for exposure.
Referring to figure 5., in the present embodiment, time for exposure automatic adjusting method is further comprising the steps of:
Step S4, control camera 4 obtain image information under the time for exposure.
In the present embodiment, when the image information obtained under the default time for exposure can not be identified, electronic equipment 1 can be from Illuminance sensor 2 obtains the illuminance of 4 current environment of camera, and the current time for exposure is calculated according to above-mentioned formula. Electronic equipment 1 controls camera 4 and obtains current image information under the current time for exposure, and receives current image information.
Step S5 carries out goal-selling identification from image information.
In the present embodiment, electronic equipment 1 can carry out default mesh according to image recognition algorithm from current image information The identification of the number of target profile, the position of goal-selling and goal-selling, according to the profile of goal-selling, goal-selling The number of position and goal-selling determines whether correctly to identify goal-selling.
Step S6 obtains new exposure adjustment order if not identifying goal-selling correctly, new in order to calculate Time for exposure.
In the present embodiment, if electronic equipment 1 fails correctly to identify goal-selling according to current image information, explanation The quality for the image information that camera 4 obtains under the current time for exposure or very poor, so that electronic equipment 1 can not identify figure As the goal-selling in information, then need further to adjust the current time for exposure.Electronic equipment 1 can also count simultaneously The number of goal-selling is not identified correctly, the number of goal-selling is not up to upper limit value, electronic equipment 1 if not identifying correctly New exposure adjustment order is obtained, in order to which electronic equipment 1 obtains new illuminance, electronic equipment 1 from illuminance sensor 2 The new time for exposure is calculated according to above-mentioned formula.It is recycled with this, the open space that camera 4 is changed in ambient light In, obtain the image of high quality.
Wherein, since what is be calculated according to above-mentioned formula is that the value range of time for exposure can be set in practical applications The median for setting value range is the time for exposure.And when the time for exposure is the median of value range, the image of the acquisition of camera 4 The quality of information or very poor, electronic equipment 1 will not be immediately generated new exposure adjustment order, and electronic equipment 1 can be counted before According to median again value (fluctuating value up and down i.e. on the basis of median) in the value range of obtained time for exposure, And control the acquisition that camera 4 carries out image information according to the time for exposure of reacquisition.If in pre-set count values, electronic equipment 1 does not find the suitable time for exposure in the value range of time for exposure, and electronic equipment 1 can then generate new exposure adjustment life It enables.
For example, if the value range for the time for exposure being calculated according to above-mentioned formula isMeanwhile the upper limit Value is set as 100 times, and pre-set count values are set as 50 times.When the exposure that electronic equipment 1 obtains for the first time in the value range Between beIf camera 4 is in the time for exposureWhen the value of image information that obtains it is very poor, electronic equipment 1 then can beBasis in rangeCarry out value again, electronic equipment 1 can be withOn the basis of up and down fluctuate value, for example, Successively value isAndDeng.If electronic equipment 1 existsThe number of value reaches in range Still identified image information cannot be obtained 50 times, illustrates what value no matter is taken can not in the value range of the time for exposure Identifiable image information is obtained, then should reacquire the value range that the new time for exposure is calculated in illuminance, from new The new time for exposure is found in the value range of time for exposure again.If identifying default mesh in the value range of new time for exposure When marking failure, and identifying that the goal-selling frequency of failure is not up to upper limit value, electronic equipment 1 can obtain illuminance again, with this Circulation, until correctly identifying goal-selling or reaching upper limit value.
If camera 4 is good in the quality for the image information that the time for exposure that electronic equipment 1 obtains acquires, i.e. 1 energy of electronic equipment Identify that goal-selling, electronic equipment 1 can record the time for exposure at this time from image information, for next time as default Value uses, while also will identify that the recognition result of goal-selling is sent to host computer 3.If electronic equipment 1 identifies goal-selling The frequency of failure is not up to upper limit value, and electronic equipment 1, which can control camera 4, terminates acquisition image information, and electronic equipment 1 can also be tied by force Identification of the beam to image information, i.e., when environment light is too strong or excessively dark, what value no matter the time for exposure of camera 4 set can not be defeated Identifiable image out, it is therefore desirable to which the acquisition and identification for terminating image avoid system from entering endless loop.
As shown in fig. 6, be the structural schematic diagram of time for exposure automatic regulating apparatus 15 provided in an embodiment of the present invention, it is described Time for exposure automatic regulating apparatus 15 is applied to electronic equipment 1 shown in FIG. 1, it should be noted that provided by the present embodiment Its basic principle of time for exposure automatic regulating apparatus 15 and the technical effect of generation are identical as preceding method embodiment, briefly to retouch It states, does not refer to part in the present embodiment, can refer to the corresponding contents in preceding method embodiment.The time for exposure adjust automatically Device 15 includes: acquiring unit 151, receiving unit 152 and computing unit 153.
Acquiring unit 151 is for obtaining exposure adjustment order.
In the present embodiment, acquiring unit 151 includes obtaining subelement 1511, identification subelement 1512 and judgment sub-unit 1513。
Wherein, subelement 1511 is obtained for obtaining image information;Identify subelement 1512 be used for from image information into The identification of row goal-selling;Judgment sub-unit 1513 is used for when correctly not identifying goal-selling, obtains exposure adjustment order.
It is appreciated that acquiring unit 151 realizes the content in above-mentioned steps S1.
Receiving unit 152, which is used to adjust order according to exposure, receives illuminance.
It is appreciated that receiving unit 152 realizes the content in above-mentioned steps S2.
Computing unit 153 is used to calculate the time for exposure according to illuminance, the first preset value and the second preset value.
In the present embodiment, computing unit 153 includes lower limit value computation subunit 1531 and upper limit value computation subunit 1532。
Lower limit value computation subunit 1531 is used to be calculated the value of time for exposure according to illuminance and the first preset value The lower limit value of range.
Upper limit value computation subunit 1532 is used to be calculated the value of time for exposure according to illuminance and the second preset value The upper limit value of range.
It is appreciated that computing unit 153 realizes the content in above-mentioned steps S3.
In conclusion time for exposure automatic adjusting method provided in an embodiment of the present invention and device, are adjusted by obtaining exposure Whole order adjusts order according to exposure and receives illuminance, calculates exposure according to illuminance, the first preset value and the second preset value Time.Enable camera in ambient light to enhance the ambient light adaptability of camera by adjusting the time for exposure of camera In the open space changed, the image of high quality is obtained.Solving the open space camera exposure time is unable to adjust automatically, needs Will manually repeatedly adjustment the problem of.And the time for exposure automatic adjusting method and device are easy to integrated with other systems, remove illumination It spends outside sensor, other software and hardwares can be with original system seamless combination.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing It is further defined and explained.

Claims (10)

1. a kind of time for exposure automatic adjusting method is applied to electronic equipment, which is characterized in that the electronic equipment and illuminance Sensor connection, the illuminance sensor is for obtaining illuminance, which comprises
Obtain exposure adjustment order;
Order, which is adjusted, according to the exposure receives the illuminance;
The time for exposure is calculated according to the illuminance, the first preset value and the second preset value.
2. time for exposure automatic adjusting method as described in claim 1, which is characterized in that described according to the illuminance, The step of one preset value and the second preset value calculate the time for exposure include:
The lower limit value of the value range of the time for exposure is calculated according to the illuminance and first preset value;
The upper limit value of the value range of the time for exposure is calculated according to the illuminance and second preset value.
3. time for exposure automatic adjusting method as claimed in claim 2, which is characterized in that calculate taking for the time for exposure It is worth range and uses following formula:
Wherein, 0.5 first preset value is indicated;2.1 indicate second preset value;A indicates the illuminance;T indicates institute State the time for exposure.
4. time for exposure automatic adjusting method as described in claim 1, which is characterized in that the electronic equipment also connects with camera It connects, the camera adjusts the step of ordering for acquiring image information, the acquisition exposure further include:
Obtain described image information;
Goal-selling identification is carried out from described image information;
If not identifying the goal-selling correctly, the exposure adjustment order is obtained.
5. time for exposure automatic adjusting method as described in claim 1, which is characterized in that the electronic equipment also connects with camera It connects, the camera is described to calculate exposure according to the illuminance, the first preset value and the second preset value for acquiring image information After the step of between light time further include:
It controls the camera and obtains described image information under the time for exposure;
Goal-selling identification is carried out from described image information;
If not identifying the goal-selling correctly, new exposure adjustment order is obtained, when in order to calculate new exposure Between.
6. time for exposure automatic adjusting method as claimed in claim 5, which is characterized in that if it is described do not identify correctly it is described Goal-selling then obtains the step of new exposure adjustment is ordered further include:
The statistics number for not identifying the goal-selling correctly;
If the number is not up to count upper-limit value, the new exposure adjustment order is obtained.
7. a kind of time for exposure automatic regulating apparatus is applied to electronic equipment, which is characterized in that the electronic equipment and illuminance Sensor electrical connection, for obtaining illuminance, described device includes: the illuminance sensor
Acquiring unit, for obtaining exposure adjustment order;
Receiving unit receives the illuminance for adjusting order according to the exposure;
Computing unit, for calculating the time for exposure according to the illuminance, the first preset value and the second preset value.
8. time for exposure automatic regulating apparatus as claimed in claim 7, which is characterized in that the computing unit includes:
Lower limit value computation subunit, for the time for exposure to be calculated according to the illuminance and first preset value The lower limit value of value range;
Upper limit value computation subunit, for the time for exposure to be calculated according to the illuminance and second preset value The upper limit value of value range.
9. time for exposure automatic regulating apparatus as claimed in claim 8, which is characterized in that the computing unit uses following public affairs Formula:
Wherein, 0.5 first preset value is indicated;2.1 indicate second preset value;A indicates the illuminance;T indicates institute State the time for exposure.
10. time for exposure automatic regulating apparatus as claimed in claim 7, which is characterized in that the electronic equipment also with camera Connection, for acquiring image information, the acquiring unit includes: the camera
Subelement is obtained, for obtaining described image information;
Subelement is identified, for carrying out goal-selling identification from described image information;
Judgment sub-unit, for when correctly not identifying the goal-selling, obtaining the exposure adjustment order.
CN201910122840.8A 2019-02-19 2019-02-19 A kind of time for exposure automatic adjusting method and device Pending CN109862283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910122840.8A CN109862283A (en) 2019-02-19 2019-02-19 A kind of time for exposure automatic adjusting method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910122840.8A CN109862283A (en) 2019-02-19 2019-02-19 A kind of time for exposure automatic adjusting method and device

Publications (1)

Publication Number Publication Date
CN109862283A true CN109862283A (en) 2019-06-07

Family

ID=66898103

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910122840.8A Pending CN109862283A (en) 2019-02-19 2019-02-19 A kind of time for exposure automatic adjusting method and device

Country Status (1)

Country Link
CN (1) CN109862283A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021017914A1 (en) * 2019-07-31 2021-02-04 深圳市大疆创新科技有限公司 Control device, camera device, movable body, control method, and program

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101819024A (en) * 2010-03-22 2010-09-01 中南大学 Machine vision-based two-dimensional displacement detection method
CN103888681A (en) * 2014-04-18 2014-06-25 四川华雁信息产业股份有限公司 Automatic exposure method and device
US20170094155A1 (en) * 2014-03-03 2017-03-30 Nubia Technology Co., Ltd. Mobile terminal and photographing method therefor
CN108881812A (en) * 2017-05-16 2018-11-23 杭州海康威视数字技术股份有限公司 The method, device and equipment of monitoring objective
CN108924436A (en) * 2018-08-01 2018-11-30 湖南拓视觉信息技术有限公司 The generation method and device of high quality graphic

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101819024A (en) * 2010-03-22 2010-09-01 中南大学 Machine vision-based two-dimensional displacement detection method
US20170094155A1 (en) * 2014-03-03 2017-03-30 Nubia Technology Co., Ltd. Mobile terminal and photographing method therefor
CN103888681A (en) * 2014-04-18 2014-06-25 四川华雁信息产业股份有限公司 Automatic exposure method and device
CN108881812A (en) * 2017-05-16 2018-11-23 杭州海康威视数字技术股份有限公司 The method, device and equipment of monitoring objective
CN108924436A (en) * 2018-08-01 2018-11-30 湖南拓视觉信息技术有限公司 The generation method and device of high quality graphic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021017914A1 (en) * 2019-07-31 2021-02-04 深圳市大疆创新科技有限公司 Control device, camera device, movable body, control method, and program

Similar Documents

Publication Publication Date Title
CN111444908B (en) Image recognition method, device, terminal and storage medium
CN109166156B (en) Camera calibration image generation method, mobile terminal and storage medium
CN110060213A (en) Image processing method, device, storage medium and electronic equipment
CN109743500A (en) A kind of calibration, switching method and the device of thermal camera diurnal pattern
CN111126098B (en) Certificate image acquisition method, device, equipment and storage medium
CN112528908B (en) Living body detection method, living body detection device, electronic equipment and storage medium
CN109829859A (en) Image processing method and terminal device
CN109101931A (en) A kind of scene recognition method, scene Recognition device and terminal device
CN112597940B (en) Certificate image recognition method and device and storage medium
CN109120854A (en) Image processing method, device, electronic equipment and storage medium
CN111091126A (en) Certificate image reflection detection method, device, equipment and storage medium
CN110826372A (en) Method and device for detecting human face characteristic points
CN109862283A (en) A kind of time for exposure automatic adjusting method and device
US11709914B2 (en) Face recognition method, terminal device using the same, and computer readable storage medium
KR102557572B1 (en) Artificial neural network device and operating method for the same
CN110490118A (en) Image processing method and device
WO2021233058A1 (en) Method for monitoring articles on shop shelf, computer and system
US20210027099A1 (en) Image-recognition apparatus, image-recognition method, and non-transitory computer-readable storage medium thereof
CN111343846B (en) Electronic component identification device and method based on PCB manufacturing process
CN107682691A (en) A kind of method, terminal and the computer-readable recording medium of camera focus calibration
CN110263885B (en) Method and device for checking projector fault, terminal equipment and storage medium
CN116506737A (en) Method, device, equipment and storage medium for determining exposure parameters
CN104104860A (en) Target-image detecting device, control method and control program thereof, and recording medium
CN111507396A (en) Method and device for relieving error classification of neural network on unknown samples
CN114236885B (en) Electric energy meter liquid crystal display machine vision detection system and method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20190607