CN108322669A

CN108322669A - The acquisition methods and device of image, imaging device, computer readable storage medium and computer equipment

Info

Publication number: CN108322669A
Application number: CN201810184573.2A
Authority: CN
Inventors: 李小朋
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-03-06
Filing date: 2018-03-06
Publication date: 2018-07-24
Anticipated expiration: 2038-03-06
Also published as: CN108322669B

Abstract

The present invention discloses a kind of acquisition methods.Acquisition methods include：Judge whether the correspondence scene of scene image is backlight scene；If so, judging whether the present intensity of environment is more than predetermined luminance threshold value；Judge whether imaging device is stablized when present intensity is more than predetermined luminance threshold value；When imaging device is unstable, multiple original pixels information of control pixel unit array output different exposure time；According to the identical original pixels information of time for exposure in the same pixel unit to obtain multiple merging Pixel Informations；High dynamic range images are exported with according to multiple merging Pixel Informations.Invention additionally discloses acquisition device, computer readable storage medium and computer equipments.Acquisition methods, acquisition device, computer readable storage medium and the computer equipment of the present invention obtains high dynamic range images according to multiple merging Pixel Informations of the same pixel unit, background overexposure is avoided while ensureing main body brightness, clearly shows that entire photographed scene.

Description

The acquisition methods and device of image, imaging device, computer readable storage medium and meter Calculate machine equipment

Technical field

The present invention relates to technical field of imaging, more particularly to a kind of acquisition methods of high dynamic range images, high dynamic range Enclose acquisition device, imaging device, non-volatile computer readable storage medium storing program for executing and the computer equipment of image.

Background technology

When shooting image, it is under backlight scene if shooting main body, in order to obtain preferable main body visual effect, generally It needs to promote main body brightness, this is easy to cause the subsequent background overexposure of main body, so that image can not clearly show that entire bat Take the photograph scene.

Invention content

The embodiment provides a kind of acquisitions of the acquisition methods of high dynamic range images, high dynamic range images Device, imaging device, non-volatile computer readable storage medium storing program for executing and computer equipment.

The acquisition methods of the high dynamic range images of embodiment of the present invention, are used for imaging device, and the imaging device is used In obtaining scene image, the imaging device includes pixel unit array, and the pixel unit array includes multiple pixel units, The acquisition methods include：

Judge whether the correspondence scene of the scene image is backlight scene；

It is pre- to judge whether the present intensity of environment is more than when the correspondence scene of the scene image is the backlight scene If luminance threshold；

Judge whether the imaging device is stablized when the present intensity is more than the predetermined luminance threshold value；

When the imaging device is unstable, the multiple original of the pixel unit array output different exposure time is controlled Pixel Information；

According to the identical original pixels information of time for exposure in the same pixel unit to obtain multiple merging Pixel Information；With

The high dynamic range images are exported according to multiple merging Pixel Informations.

The acquisition device of the high dynamic range images of embodiment of the present invention, is used for imaging device, and the imaging device is used In obtaining scene image, the imaging device includes pixel unit array, and the pixel unit array includes multiple pixel units, The acquisition device includes：

First judgment module, first judgment module is for judging whether the correspondence scene of the scene image is backlight Scene；

Second judgment module, second judgment module are used in the correspondence scene of the scene image be the backlight field Judge whether the present intensity of environment is more than predetermined luminance threshold value when scape；

Third judgment module, the third judgment module are used for when the present intensity is more than the predetermined luminance threshold value Judge whether the imaging device is stablized；

First control module, first control module are used for when the imaging device is unstable, control the pixel Cell array exports multiple original pixels information of different exposure time；

Merging module, the merging module are used for according to the time for exposure identical original in the same pixel unit Beginning Pixel Information is to obtain multiple merging Pixel Informations；With

First output module, first output module are used for described high dynamic according to multiple merging Pixel Information outputs State range image.

The imaging device of embodiment of the present invention, the imaging device is for obtaining scene image, the imaging device packet Pixel unit array is included, the pixel unit array includes multiple pixel units, and the imaging device further includes processor, described Processor is used for：

Judge whether the correspondence scene of the scene image is backlight scene；

The one or more of embodiment of the present invention, which includes that the non-volatile computer of computer executable instructions is readable, deposits Storage media, when the computer executable instructions are executed by one or more processors so that the processor executes above-mentioned The acquisition methods of high dynamic range images.

The computer equipment of embodiment of the present invention, including memory and processor store calculating in the memory Machine readable instruction, when described instruction is executed by the processor so that the processor executes above-mentioned high dynamic range images Acquisition methods.

It is the acquisition methods of high dynamic range images of the present invention, the acquisition device of high dynamic range images, imaging device, non- Volatile computer readable storage medium storing program for executing and computer equipment the correspondence scene of scene image be backlight scene, environment it is current Brightness obtains when being more than predetermined luminance threshold value and unstable imaging device according to multiple merging Pixel Informations of the same pixel unit High dynamic range images are obtained, so as to clearly illustrate entire photographed scene using high dynamic range images.Wherein, in scene Generally there are higher luminance differences when the correspondence scene of image is backlight scene, in image, it is therefore desirable to scene image into Row processing is to obtain high dynamic range images.When imaging device is unstable, if synthesizing high dynamic range figure by multiple image Picture is then easy so that there is " ghost " in image, therefore can synthesize height by multiple merging Pixel Informations of a frame image Dynamic image avoids the generation of " ghost ".

The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.

Description of the drawings

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with Obtain other attached drawings according to these attached drawings.

Fig. 1 is the flow diagram of the acquisition methods of the high dynamic range images of certain embodiments of the present invention.

Fig. 2 is the schematic diagram of the imaging device of certain embodiments of the present invention.

Fig. 3 is the part-structure schematic diagram of the pixel unit array of the imaging device of certain embodiments of the present invention.

Fig. 4 is the schematic diagram of the filter unit array of the imaging device of certain embodiments of the present invention.

Fig. 5 is the structural schematic diagram of the imaging device of certain embodiments of the present invention.

Fig. 6 is the schematic diagram of the acquisition device of the high dynamic range images of certain embodiments of the present invention.

Fig. 7 is the floor map of the computer equipment of certain embodiments of the present invention.

Fig. 8 is the schematic diagram of the pixel unit array of the imaging device of certain embodiments of the present invention.

Fig. 9 is the flow diagram of the acquisition methods of the high dynamic range images of certain embodiments of the present invention.

Figure 10 is the schematic diagram of the acquisition device of the high dynamic range images of certain embodiments of the present invention.

Figure 11 is the schematic diagram of the merging image of certain embodiments of the present invention.

Figure 12 is the flow diagram of the acquisition methods of the high dynamic range images of certain embodiments of the present invention.

Figure 13 is the schematic diagram of the acquisition device of the high dynamic range images of certain embodiments of the present invention.

Figure 14 is the schematic diagram of the scene image of certain embodiments of the present invention.

Figure 15 is the flow diagram of the acquisition methods of the high dynamic range images of certain embodiments of the present invention.

Figure 16 is the schematic diagram of the acquisition device of the high dynamic range images of certain embodiments of the present invention.

Figure 17 is the flow diagram of the acquisition methods of the high dynamic range images of certain embodiments of the present invention.

Figure 18 is the schematic diagram of the acquisition device of the high dynamic range images of certain embodiments of the present invention.

Figure 19 is the module diagram of the computer equipment of certain embodiments of the present invention.

Figure 20 is the module diagram of the image processing circuit of certain embodiments of the present invention.

Main element symbol description：

Computer equipment 1000, imaging device 100, imaging sensor 10, pixel unit array 12, pixel unit 122, sense Light pixel 1222, filter unit array 14, filter unit 142, camera lens 30, acquisition device 200, the first judgment module 212, Second judgment module 214, third judgment module 216, the first control module 218, merging module 222, the first output module 224, 4th judgment module 226, the second control module 228, the second output module 232, third control module 234, third output module 236, the 4th control module 238, the 4th output module 242, the 5th control module 244, the 5th output module 246, system bus 510, processor 520, memory 530, built-in storage 540, display screen 550, input unit 560, image processing circuit 800, ISP Processor 810, control logic device 820, sensor 840, video memory 850, encoder/decoder 860, display 870.

Specific implementation mode

In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.

It please refers to Fig.1 to Fig. 5, high dynamic range (high-dynamic range, HDR) image of embodiment of the present invention Acquisition methods can be used for imaging device 100.Imaging device 100 is for obtaining scene image.Imaging device 100 includes image Sensor 10 and camera lens 30, imaging sensor 10 include pixel unit array 12 and the optical filtering being arranged in pixel unit array 12 Blade unit array 14, pixel unit array 12 include multiple pixel units 122, and each pixel unit 122 includes multiple light-sensitive images Element 1222.Filter unit array 14 includes multiple filter units 142 corresponding with multiple pixel units 122, each to filter Blade unit 142 covers corresponding pixel unit 122.Acquisition methods include：

012：Judge whether the correspondence scene of scene image is backlight scene；

014：It is default bright to judge whether the present intensity of environment is more than when the correspondence scene of scene image is backlight scene Spend threshold value；

016：Judge whether imaging device 100 is stablized when present intensity is more than predetermined luminance threshold value；

018：When imaging device 100 is unstable, control pixel unit array 12 exports multiple originals of different exposure time Beginning Pixel Information；

022：According to the identical original pixels information of time for exposure in the same pixel unit 122 to obtain multiple merging pictures Prime information；With

024：High dynamic range images are exported according to multiple merging Pixel Informations.

Fig. 2 to Fig. 6 is please referred to, the acquisition device 200 of the high dynamic range images of embodiment of the present invention can be used for into As device 100.Imaging device 100 is for obtaining scene image.Imaging device 100 includes imaging sensor 10, imaging sensor 10 include pixel unit array 12 and the filter unit array 14 being arranged in pixel unit array 12, pixel unit array 12 Including multiple pixel units 122, each pixel unit 122 includes multiple photosensitive pixels 1222.Filter unit array 14 includes Multiple filter units 142 corresponding with multiple pixel units 122, each filter unit 142 cover corresponding pixel unit 122.Acquisition device 200 includes the first judgment module 212, the second judgment module 214, the control mould of third judgment module 216, first Block 218, merging module 222 and the first output module 224.First judgment module 212 is used to judge the correspondence scene of scene image Whether it is backlight scene.Second judgment module 214 is used to judge environment when the correspondence scene of scene image is backlight scene Whether present intensity is more than predetermined luminance threshold value.Third judgment module 216 is used for when present intensity is more than predetermined luminance threshold value Judge whether imaging device 100 is stablized.First control module 218 is used for when imaging device 100 is unstable, controls pixel unit Array 12 exports multiple original pixels information of different exposure time.Merging module 222 is used for according to the same pixel unit 122 Middle time for exposure, identical original pixels information was to obtain multiple merging Pixel Informations.First output module 224 is used for according to more A merging Pixel Information exports high dynamic range images.

The acquisition methods of the high dynamic range images of embodiment of the present invention can be by the high dynamic of embodiment of the present invention The acquisition device 200 of range image is realized, wherein step 012 can realize by the first judgment module 212, and step 014 can be by Second judgment module 214 realizes that step 016 can be realized by third judgment module 216, and step 018 can be by the first control mould Block 218 realizes that step 022 can be realized that step 024 can be realized by the first output module 224 by merging module 222.Imaging Device 100 further includes processor 520 (shown in Fig. 2).Step 012, step 014, step 016, step 018, step 022 and step Rapid 024 can be realized by processor 520.In other words, processor 520 can be used for judging scene image correspondence scene whether For backlight scene；Judge whether the present intensity of environment is more than predetermined luminance when the correspondence scene of scene image is backlight scene Threshold value；Judge whether imaging device 100 is stablized when present intensity is more than predetermined luminance threshold value；It is unstable in imaging device 100 When, control pixel unit array 12 exports multiple original pixels information of different exposure time；According to the same pixel unit 122 Middle time for exposure, identical original pixels information was to obtain multiple merging Pixel Informations；It is exported with according to multiple merging Pixel Informations High dynamic range images.

Referring to Fig. 7, the acquisition device 200 of the high dynamic range images of embodiment of the present invention can be applied to the present invention In the computer equipment 1000 of embodiment, in other words, the computer equipment 1000 of embodiment of the present invention may include this The acquisition device 200 of the high dynamic range images of invention embodiment.

The acquisition methods of the high dynamic range images of embodiment of the present invention, the acquisition device 200 of high dynamic range images, Imaging device 100 and computer equipment 1000 the correspondence scene of scene image be backlight scene, environment present intensity be more than When predetermined luminance threshold value and unstable imaging device 100 high move is obtained according to multiple merging Pixel Informations of the same pixel unit State range image, so as to clearly illustrate entire photographed scene using high dynamic range images.Wherein, in scene image When corresponding scene is backlight scene, generally there are higher luminance differences in image, it is therefore desirable to handle scene image To obtain high dynamic range images.

Existing high dynamic range images are realized generally by way of multiple image synthesis, such as pass through three frame images (frame length exposes image, exposes image and the short exposure image of a frame in a frame) synthesis obtains HDR image, the mode of this synthesis at As when device 100 is unstable or objects in images movement velocity is higher, being easy to cause to synthesize because of the variation of photographed scene HDR image occur the bad problem of quality (such as occur " ghost image ", " ghost " the problems such as).Therefore, embodiment of the present invention High dynamic range images are synthesized by multiple merging Pixel Informations in a frame scene image, to avoid the occurrence of multiple image Synthesize the bad problem of the quality of high dynamic range images.However, coming according to multiple merging Pixel Informations in a frame scene High dynamic range images are synthesized, the resolution ratio of the high dynamic range images of synthesis can be made to substantially reduce.In other words, high dynamic There is certain defect in the various synthesis modes of range image, only choose suitable high dynamic range figure on suitable opportunity The synthesis mode of picture could largely be met the needs of users.

The present invention by judge scene image correspondence scene whether be backlight scene, environment present intensity whether be more than Whether predetermined luminance threshold value and imaging device 100 are stablized to choose the synthesis mode of suitable high dynamic range images, to defeated Go out clear high dynamic range images.

In some embodiments, scene image can be handled to obtain the main body and background of scene image, judge main body Brightness and the difference of brightness of background whether be more than preset difference value, be more than in the difference of the brightness of the brightness and background of main body pre- If determining that the correspondence scene of scene image is backlight scene when difference, be less than in the difference of the brightness of the brightness and background of main body or Determine that the correspondence scene of scene image is not backlight scene when equal to preset difference value.Preset difference value can be preset in computer equipment In 1000 or by user setting.

In some embodiments, velocity sensor is may include in computer equipment 1000, velocity sensor is for detecting The movement velocity of computer equipment 1000 is obtained, that is, the movement velocity of imaging device 100 is obtained, in the movement of imaging device 100 Speed determines that imaging device 100 is unstable when being more than predetermined speed, is less than or equal in the movement velocity of imaging device 100 predetermined Determine that imaging device 100 is stablized when speed.Predetermined speed can be preset in computer equipment 1000 or by user setting.

When the correspondence scene of scene image is backlight scene, illustrate in scene image there are higher luminance difference, because This needs to synthesize high dynamic range images so that high dynamic range images can clearly illustrate the correspondence scene of scene image； Environment present intensity be more than predetermined luminance when, photosensitive the obtained electric signal of each photosensitive pixel 1222 is stronger, noise compared with It is small, original pixels information can be exported respectively, so that the resolution ratio of scene image is higher；When imaging device 100 is unstable, It needs to synthesize high dynamic range images by a frame scene image to prevent " ghost ".

Fig. 5 and Fig. 8 is please referred to, in one embodiment, pixel unit 122 includes four photosensitive pixels 1222, and four A photosensitive pixel 1222 is in 2*2 array arrangements.Four photosensitive pixels 1222 of each pixel unit 122 are specially a long exposure Light pixel, two middle exposing pixels and a short exposure pixel.Certainly, in other embodiments, in each pixel unit 122 Long exposing pixels, middle exposing pixels and short exposure pixel quantity be alternatively other numerical value.Wherein, long exposing pixels refer to The 1222 corresponding time for exposure of photosensitive pixel is the long time for exposure, and middle exposing pixels refer to 1222 corresponding exposure of photosensitive pixel Time is the middle time for exposure, and short exposure pixel refers to that the 1222 corresponding time for exposure of photosensitive pixel is short exposure time, wherein The long time for exposure>The middle time for exposure>Short exposure time, and when long time for exposure/middle time for exposure=middle time for exposure/short exposure Between.When imaging device 100 works, long exposing pixels, middle exposing pixels and short exposure pixel synchronize exposure, and synchronous exposure refers to The exposure that the exposure progress time of middle exposing pixels and short exposure pixel is located at long exposing pixels carried out within the time.Specifically, By taking photosensitive pixel 1222 red in pixel unit array 12 shown in Fig. 8 as an example, R (1,1) be long exposing pixels, R (1,2) and R (2,1) is middle exposing pixels, and R (2,2) is short exposure pixel.The exposure process of each photosensitive pixel 1222 can be：It controls first It makes long exposing pixels R (1,1) to start to expose at first, during the exposure of long exposing pixels R (1,1), then picture is exposed in controlling Plain R (1,2), middle exposing pixels R (2,1) and short exposure pixel R (2,2) exposures.Wherein, middle exposing pixels R (1,2) and middle exposure The exposure initial time of light pixel R (2,1) is consistent, and middle exposing pixels R (1,2) and R (2,1) and short exposure pixel R (2,2) Exposure deadline should be identical as the long exposure deadline of exposing pixels R (1,1) or in long exposing pixels R (1,1) Before exposure deadline；Alternatively, controlling long exposing pixels R (1,1), middle exposing pixels R (1,2) and R (2,1), short exposure picture Plain R (2,2) starts simultaneously at exposure, i.e., long exposing pixels R (1,1), middle exposing pixels R (1,2) and R (2,1), short exposure pixel R (2,2) exposure initial time is identical.In this way, long exposure, middle exposure and short exposure are carried out successively without controlling pixel unit array 12, it can Reduce the acquisition time of high dynamic range images.

When imaging device 100 works, imaging device 100 control first long exposing pixels in each pixel unit 122, Middle exposing pixels and short exposure pixel synchronize exposure, wherein the long exposing pixels corresponding time for exposure is the initial long time for exposure, The middle exposing pixels corresponding time for exposure be it is initial in the time for exposure, the short exposure pixel corresponding time for exposure is initial short exposure Time, initial long time for exposure, initial middle time for exposure and initial short exposure time are pre-set.End exposure Afterwards, each pixel unit 122 will export four original pixels information, by taking the pixel unit 122 of red shown in Fig. 8 as an example, four A original pixels information includes the original pixels information of long exposing pixels R (1,1) output, the original of middle exposing pixels R (1,2) outputs Beginning Pixel Information, the original pixels information of middle exposing pixels R (2,1) outputs and short exposure pixel R (2,2) export original Pixel Information.In this way, the 1222 equal manner described above of photosensitive pixel for controlling in each pixel unit 122 be carried out at the same time it is long, In, the exposure of short time, and obtain multiple original pixels information of the output of each pixel unit 122.Then according to same pixel The time for exposure, multiple merging Pixel Informations were calculated in identical original pixels information in unit 122, specifically, with red picture For plain unit 122, when the number of photosensitive pixel 1222 in pixel unit 122 is 2 × 2, the original of long exposing pixels R (1,1) Beginning Pixel Information is the merging Pixel Information of long exposure, original pixels information and the middle exposing pixels of middle exposing pixels R (1,2) Exposure merges Pixel Information, the original pixels information of short exposure pixel R (2,2) during the sum of original pixels information of R (2,1) is The as merging Pixel Information of short exposure；When the number of photosensitive pixel 1222 in pixel unit 122 is 2*4, and long exposure picture The number of element is 2, and middle exposing pixels are 4, when short exposure pixel is 2, the original pixels information of 2 long exposing pixels it The merging picture exposed in being with the merging Pixel Information for being long exposure, the sum of original pixels information of 4 middle exposing pixels Prime information, the sum of original pixels information of 2 short exposure pixels are the merging Pixel Information of short exposure.In this way, can obtain It is the merging Pixel Informations of multiple long exposures of entire pixel unit array 12, the merging Pixel Information of multiple middle exposures, multiple short The merging Pixel Information of exposure.Long exposure subgraph, root are obtained further according to the merging Pixel Information interpolation calculation of multiple long exposures Middle exposure subgraph is obtained according to the merging Pixel Information interpolation calculation of multiple middle exposures, is believed according to the merging pixel of multiple short exposures Breath interpolation calculation obtains short exposure subgraph.Finally, long exposure subgraph, middle exposure subgraph and short exposure subgraph are merged Processing is to obtain final image, wherein long exposure subgraph, middle exposure subgraph and short exposure subgraph are not traditional sense On three frame images, but in same frame image long, medium and short exposing pixels corresponding region formed image section.

Alternatively, after 12 end exposure of pixel unit array, on the basis of the original pixels information of long exposing pixels output, By the original image of the original pixels information of short exposure pixel and the original pixels information superposition of middle exposing pixels to long exposing pixels In prime information.Specifically, for example, to the original pixels information of three kinds of different exposure times different weights can be assigned respectively, After in each time for exposure, corresponding original pixels information is multiplied with weights, then original pixels information phase that three kinds are multiplied by after weights Add the resulting pixel information as a pixel unit 122.Subsequently, as being believed according to the original pixels of three kinds of different exposure times The grey level for ceasing each the resulting pixel information being calculated will produce variation, therefore, after obtaining resulting pixel information Need to do each resulting pixel information the compression of grey level.After compression, according to multiple compressions after obtain Resulting pixel information carries out interpolation calculation and can be obtained high dynamic range images.In this way, dark portion has been in high dynamic range images The original pixels information exported by long exposing pixels compensates, the original pixels information that highlights has been exported via short exposure pixel It is suppressed, therefore, high dynamic range images are there is no overexposure region and owe to expose region, with higher dynamic range and preferably Imaging effect.

Further, it is the image quality for further improving high dynamic range images, in long exposing pixels, middle exposing pixels And after short exposure pixel synchronizes exposure according to initial long time for exposure, initial middle time for exposure and initial short exposure time respectively, The original pixels information that can be exported according to long exposing pixels calculates long exposure histogram, according to the original of short exposure pixel output Pixel Information calculates short exposure histogram, and according to long exposure histogram modification initially the long time for exposure obtains correcting long exposure when Between, it is obtained correcting short exposure time according to the initial short exposure time of short exposure histogram modification.Then, then long exposure picture is controlled Plain, middle exposing pixels and short exposure pixel are respectively according to amendment long time for exposure, initial middle time for exposure and when correcting short exposure Between synchronous exposure.Wherein, makeover process not settles at one go, but imaging device 100 needs to carry out the same of multiple long, medium and short Step exposure, after synchronous exposure each time, imaging device 100 can be according to the long exposure histogram and short exposure histogram of generation Continue to correct long time for exposure and short exposure time, and exposure is grown using the amendment that last moment has been corrected when exposing next time Time, amendment short exposure time and original middle time for exposure synchronize exposure, continue to obtain long exposure histogram and short exposure Light histogram, so in cycles, until there is no owe to expose region, short exposure histogram in the corresponding image of long exposure histogram There is no until overexposure region in corresponding image, amendment long time for exposure and amendment short exposure time at this time are final It corrects the long time for exposure and corrects short exposure time.Further according to long exposing pixels, middle exposing pixels and short exposure after end exposure The output of pixel carries out the calculating of high dynamic range images, and the calculation is identical as the calculation in a upper embodiment, Details are not described herein.

Wherein long exposure histogram can be one or more.When long exposure histogram is one, according to all long exposures The original pixels information of pixel output generates one long exposure histogram.When long exposure histogram is multiple, to long exposing pixels Region is divided, and one long exposure histogram is generated according to the original pixels letter element of multiple long exposure pictures in each region, such as This, multiple regions correspond to multiple long exposure histograms.The effect for dividing region is when can promote long exposure modified each time Between accuracy, accelerate the amendment process of long time for exposure.Similarly, short exposure histogram can be one or more.Short exposure When light histogram is one, a short exposure histogram is generated according to the original pixels information of all short exposure pixels output.It is short When exposure histogram is multiple, region is divided to short exposure pixel, and according to the original of multiple short exposure pixels in each region Beginning Pixel Information generates a short exposure histogram, in this way, multiple regions correspond to multiple short exposure histograms.Divide the work in region With being the accuracy that can promote modified short exposure time each time, accelerate the amendment process of short exposure time.

It should be noted that the step 018 of embodiment of the present invention, step 022 and step 024 may be regarded as high dynamic range A kind of synthesis mode of image.

Referring to Fig. 9, in some embodiments, including after step 014：

038：When present intensity is less than or equal to predetermined luminance threshold value, pixel unit array is controlled with different exposure time 12 progress multiple exposures merge image to obtain multiframe, and it includes the merging pixel being arranged in array, the same pixel to merge image Unit 122 merges one merging pixel of output, and the time for exposure that same frame merges the different pixels unit 122 of image is identical；With

042：Merge image according to multiframe and obtains high dynamic range images.

Referring to Fig. 10, in some embodiments, acquisition device 200 is exported including the 4th control module 238 and the 4th Module 242.4th control module 238 is used for when present intensity is less than or equal to predetermined luminance threshold value, with different exposure time Control pixel unit array 12 carries out multiple exposure and merges image to obtain multiframe, and it includes the merging being arranged in array to merge image Pixel, the same pixel unit 122 merge one merging pixel of output, and same frame merges the different pixels unit 122 of image Time for exposure is identical.4th output module 242, which is used to merge image according to multiframe, obtains high dynamic range images.

In other words, step 038 can be realized by the 4th control module 238, and step 042 can be by the 4th output module 242 realize.In addition, step 038 and step 042 can also be realized by processor 520.In other words, processor 520 can be used for When present intensity is less than or equal to predetermined luminance threshold value, multiple exposure is carried out with different exposure time control pixel unit array 12 Merge image to obtain multiframe, it includes the merging pixel being arranged in array to merge image, and the same pixel unit 122 merges output One merging pixel, the time for exposure that same frame merges the different pixels unit 122 of image are identical；Merge image with according to multiframe Obtain high dynamic range images.

When the correspondence scene of scene image is backlight scene, illustrate in scene image there are higher luminance difference, because This needs to synthesize high dynamic range images so that high dynamic range images can clearly illustrate the correspondence scene of scene image； When the present intensity of environment is less than or equal to predetermined luminance, photosensitive the obtained electric signal of each photosensitive pixel 1222 is weaker, Noise is larger, and multiple photosensitive pixels 1222 of a pixel unit 12 can merge output and merge pixel, to reduce merging image Noise.

Fig. 3 to Fig. 5 and Figure 11 is please referred to, in one embodiment, a pixel unit 122 includes four photosensitive pixels 1222, four photosensitive pixels 1222 are in 2*2 array arrangements.First, it is carried out with different exposure time control pixel unit array 12 Multiple exposure merges image to obtain multiframe, and it includes the merging pixel being arranged in array, the same pixel unit 122 to merge image Merge one merging pixel of output, it is, for example, that three frames merge image that multiframe, which merges image, and it is respectively long exposure that three frames, which merge image, Merge image, middle exposure merges image and short exposure and merges image, the time for exposure of three frames merging image is all different, can be with For the time for exposure that long exposure merges image is more than the time for exposure that middle exposure merges image, and middle exposure merges the exposure of image Time is more than the time for exposure that short exposure merges image, and the value of each time for exposure can be set in advance in computer equipment In 1000 or by user setting.The time for exposure that same frame merges the different pixels unit 122 of image is identical, i.e., long exposure merges The time for exposure of the different pixels unit 122 of image is identical, and middle exposure merges the time for exposure of the different pixels unit 122 of image Identical, the time for exposure that short exposure merges the different pixels unit 122 of image is identical.Finally, synthesis multiframe merges image Obtain high dynamic range images, such as synthesize three frames with different weights treated merge image to obtain high dynamic range figure Picture, merging the corresponding weights of image can be set in advance in computer equipment 1000 or by user setting.

It should be noted that the above-mentioned method for merging image synthesis high dynamic range images using three frames is merely illustrative, In other embodiment, the quantity for merging image may be two frames, four frames, five frames, six frames etc., be not specifically limited herein.

The step 038 and step 042 of embodiment of the present invention may be regarded as a kind of synthesis mode of high dynamic range images.

2 are please referred to Fig.1, in some embodiments, includes after step 016：

044：When imaging device 100 is stablized, multiple exposure is carried out with different exposure time control pixel unit array 12 To obtain multiframe scene image, the time for exposure of the pixel unit array 12 of same frame scene image is identical；With

046：High dynamic range images are obtained according to multiframe scene image.

3 are please referred to Fig.1, in some embodiments, acquisition device 200 is exported including the 5th control module 244 and the 5th Module 246.5th control module 244 is used for when imaging device 100 is stablized, and pixel unit array is controlled with different exposure time 12 carry out multiple exposure to obtain multiframe scene image, the time for exposure phase of the pixel unit array 12 of same frame scene image Together.5th output module 246 is used to obtain high dynamic range images according to multiframe scene image.

In other words, step 044 can be realized by the 5th control module 244, and step 046 can be by the 5th output module 246 realize.In addition, step 044 and step 046 can also be realized by processor 520.In other words, processor 520 can be used for When imaging device 100 is stablized, multiple exposure is carried out to obtain multiframe scene with different exposure time control pixel unit array 12 The time for exposure of image, the pixel unit array 12 of same frame scene image is identical；It is high dynamic with being obtained according to multiframe scene image State range image.

When the correspondence scene of scene image is backlight scene, illustrate in scene image there are higher luminance difference, because This needs to synthesize high dynamic range images so that high dynamic range images can clearly illustrate the correspondence scene of scene image； Environment present intensity be more than predetermined luminance when, photosensitive the obtained electric signal of each photosensitive pixel 1222 is stronger, noise compared with It is small, original pixels information can be exported respectively, so that the resolution ratio of scene image is higher；It, can when imaging device 100 is stablized To synthesize high dynamic range images by multiframe scene image.

Fig. 3 to Fig. 5 and Figure 14 is please referred to, in one embodiment, a pixel unit 122 includes four photosensitive pixels 1222, four photosensitive pixels 1222 are in 2*2 array arrangements.First, it is carried out with different exposure time control pixel unit array 12 For multiple exposure to obtain multiframe scene image, one of photosensitive pixel 1222 exports a Pixel Information, multiframe scene image For example, three frame scene images, three frame scene images are respectively long exposure scene image, middle exposure scene image and short exposure field The time for exposure of scape image, three frame scene images is all different, Ke Yiwei, and the time for exposure of long exposure scene image is more than middle exposure The time for exposure of the time for exposure of light scene image, middle exposure scene image are more than the time for exposure of short exposure scene image, respectively The value of a time for exposure can be set in advance in computer equipment 1000 or by user setting.The picture of same frame scene image The time for exposure of plain cell array 12 is identical, i.e., the time for exposure of the different photosensitive pixels 1222 of long exposure scene image is identical, The time for exposure of the different photosensitive pixels 1222 of middle exposure scene image is identical, the different photosensitive pixels of short exposure scene image 1222 time for exposure is identical.Finally, synthesis multiframe scene image can be obtained high dynamic range images, such as synthesize three frames with To obtain high dynamic range images, the corresponding weights of scene image can be set in advance in different weights treated scene image In computer equipment 1000 or by user setting.

It should be noted that the above-mentioned method using three frame scene images synthesis high dynamic range images is merely illustrative, In other embodiment, the quantity of scene image may be two frames, four frames, five frames, six frames etc., be not specifically limited herein.

It should be noted that the step 044 and step 046 of embodiment of the present invention may be regarded as the one of high dynamic range images Kind synthesis mode.

5 are please referred to Fig.1, in some embodiments, includes after step 012：

026：Judge whether present intensity is more than predetermined luminance threshold when the correspondence scene of scene image is not backlight scene Value；

028：When present intensity is more than predetermined luminance threshold value, carried out with different exposure time control pixel unit array 12 For multiple exposure to obtain multiframe scene image, the time for exposure of the pixel unit array 12 of same frame scene image is identical；With

032：High dynamic range images are obtained according to multiframe scene image.

6 are please referred to Fig.1, in some embodiments, acquisition device 200 includes that the 4th judgment module 226, second controls mould Block 228 and the second output module 232.4th judgment module 226 is used for when the correspondence scene of scene image is not backlight scene Judge whether present intensity is more than predetermined luminance threshold value.Second control module 228 is used to be more than predetermined luminance threshold in present intensity When value, multiple exposure is carried out to obtain multiframe scene image, same frame field with different exposure time control pixel unit array 12 The time for exposure of the pixel unit array 12 of scape image is identical.Second output module 232 is used to be obtained according to multiframe scene image High dynamic range images.

In other words, step 026 can be realized by the 4th judgment module 226, and step 028 can be by the second control module 228 realize, step 032 can be realized by the second output module 232.In addition, step 026, step 028 and step 032 can be with It is realized by processor 520.In other words, processor 520 can be used for sentencing when the correspondence scene of scene image is not backlight scene Whether disconnected present intensity is more than predetermined luminance threshold value；When present intensity is more than predetermined luminance threshold value, with different exposure time control Pixel unit array 12 processed carries out multiple exposure to obtain multiframe scene image, the pixel unit array 12 of same frame scene image Time for exposure it is identical；High dynamic range images are obtained with according to multiframe scene image.The step 028 of embodiment of the present invention and Step 032 may be regarded as a kind of synthesis mode of high dynamic range images, synthesis mode and above-mentioned steps 044 and step 046 The synthesis mode of high dynamic range images is identical, and details are not described herein.

In some embodiments, after step 028 obtains multiframe scene image, 032 can not be entered step, but it is straight It connects and carries out noise reduction process using multiframe scene image, noise reduction process is, for example, the image on the basis of a wherein frame scene image, profit Part more coarse in benchmark image is replaced to improve the quality of benchmark image with the relatively smooth part of other scene images.

7 are please referred to Fig.1, in some embodiments, includes after step 026：

034：When present intensity is less than or equal to predetermined luminance threshold value, pixel unit array is controlled with different exposure time 12 progress multiple exposures merge image to obtain multiframe, and it includes the merging pixel being arranged in array, the same pixel to merge image Unit 122 merges one merging pixel of output, and the time for exposure that same frame merges the different pixels unit 122 of image is identical；With

036：Merge image according to multiframe and obtains high dynamic range images.

8 are please referred to Fig.1, in some embodiments, acquisition device 200 includes that third control module 234 and third export Module 236.Third control module 234 is used for when present intensity is less than or equal to predetermined luminance threshold value, with different exposure time Control pixel unit array 12 carries out multiple exposure and merges image to obtain multiframe, and it includes the merging being arranged in array to merge image Pixel, the same pixel unit 122 merge one merging pixel of output, and same frame merges the different pixels unit 122 of image Time for exposure is identical.Third output module 236, which is used to merge image according to multiframe, obtains high dynamic range images.

In other words, step 034 can be realized by third control module 234, and step 036 can be by third output module 236 realize.In addition, step 034 and step 036 can also be realized by processor 520.In other words, processor 520 can be used for When present intensity is less than or equal to predetermined luminance threshold value, repeatedly exposed with different exposure time control pixel unit array 12 Light merges image to obtain multiframe, and it includes the merging pixel being arranged in array to merge image, and the same pixel unit 122 merges defeated Go out a merging pixel, the time for exposure that same frame merges the different pixels unit 122 of image is identical；Scheme with being merged according to multiframe As obtaining high dynamic range images.

The step 034 and step 036 of embodiment of the present invention may be regarded as a kind of synthesis mode of high dynamic range images, Synthesis mode is identical as the synthesis mode of the high dynamic range images of above-mentioned steps 038 and step 042, and details are not described herein.

In some embodiments, after step 034 obtains multiframe scene image, 036 can not be entered step, but it is straight It connects and merges image progress noise reduction process using multiframe, noise reduction process is, for example, the image on the basis of wherein frame merging image, profit Part more coarse in benchmark image is replaced to improve the quality of benchmark image with the relatively smooth part of other merging images.

The division of modules is only used for for example, in other embodiments, can will obtain in above-mentioned acquisition device 200 Device 200 is divided into different modules as required, to complete all or part of function of above-mentioned acquisition device 200.

The embodiment of the present invention additionally provides a kind of computer readable storage medium.One or more is executable comprising computer The non-volatile computer readable storage medium storing program for executing of instruction, when computer executable instructions are executed by one or more processors, So that processor executes following steps：

Further, when computer executable instructions are executed by one or more processors, processor can also be held Row following steps：

Figure 19 is the internal structure schematic diagram of one embodiment Computer equipment 1000.As shown in figure 19, the computer Equipment 1000 include the processor 520 connected by system bus 510, memory 530 (being, for example, non-volatile memory medium), Built-in storage 540, display screen 550 and input unit 560.Wherein, the memory 530 of computer equipment 1000 is stored with operation system System and computer-readable instruction.The computer-readable instruction can be executed by processor 520, to realize obtaining for embodiment of the present invention Take method.The processor 520 supports the operation of entire computer equipment 1000 for providing calculating and control ability.Computer The built-in storage 530 of equipment 1000 provides environment for the operation of the computer-readable instruction in memory 520.Computer equipment 1000 display screen 550 can be liquid crystal display or electric ink display screen etc., and input unit 560 can be display screen The touch layer covered on 550 can also be button, trace ball or the Trackpad being arranged on 1000 shell of computer equipment, also may be used To be external keyboard, Trackpad or mouse etc..The computer equipment 1000 can be mobile phone, tablet computer, laptop, Personal digital assistant or Wearable (such as Intelligent bracelet, smartwatch, intelligent helmet, intelligent glasses) etc..This field skill Art personnel are appreciated that structure shown in Figure 19, only with the schematic diagram of the relevant part-structure of the present invention program, not The restriction for the computer equipment 1000 being applied thereon to the present invention program is constituted, specific computer equipment 1000 can wrap It includes than more or fewer components as shown in the figure, either combine certain components or is arranged with different components.

Figure 20 is please referred to, the computer equipment 1000 of the embodiment of the present invention includes image processing circuit 800, image procossing Circuit 800 can utilize hardware and or software component to realize, it may include define ISP (Image Signal Processing, figure As signal processing) the various processing units of pipeline.Figure 20 is the schematic diagram of image processing circuit 800 in one embodiment.Such as figure Shown in 20, for purposes of illustration only, only showing the various aspects with the relevant image processing techniques of the embodiment of the present invention.

As shown in figure 20, image processing circuit 800 includes ISP processors 810 (ISP processors 810 can be processor 520) With control logic device 820.The image data that imaging device 100 captures is handled by ISP processors 810 first, ISP processors 810 Image data is analyzed to capture the image statistics letter for the one or more control parameters that can be used for determining imaging device 100 Breath.Imaging device 100 may include camera lens 30 and imaging sensor 10.Imaging sensor 10 may include colour filter array (such as Bayer filters), imaging sensor 10 can obtain the luminous intensity and wavelength information that each imaging pixel captures, and providing can be by ISP One group of raw image data of the processing of processor 810.Sensor 840 (such as gyroscope) can be based on 840 interface type handle of sensor The parameter (such as stabilization parameter) of the image procossing of acquisition is supplied to ISP processors 810.840 interface of sensor can be SMIA (Standard Mobile Imaging Architecture, Standard Mobile Imager framework) interface, other serial or parallels shine The combination of camera interface or above-mentioned interface.

In addition, raw image data can be also sent to sensor 840 by imaging sensor 10, sensor 840 can be based on passing 840 interface type of sensor is supplied to ISP processors 810 or sensor 840 to deposit raw image data raw image data It stores up in video memory 850.

ISP processors 810 handle raw image data pixel by pixel in various formats.For example, each image pixel can Bit depth with 8,10,12 or 14 bits, ISP processors 810 can carry out raw image data at one or more images Reason operation, statistical information of the collection about image data.Wherein, image processing operations can be by identical or different bit depth precision It carries out.

ISP processors 810 can also receive image data from video memory 850.For example, 840 interface of sensor will be original Image data is sent to video memory 850, and the raw image data in video memory 850 is available to ISP processors 810 It is for processing.Video memory 850 can be in memory 530, a part for memory 530, storage device or electronic equipment Independent private memory, and may include DMA (Direct Memory Access, direct direct memory access (DMA)) feature.

When receiving from 10 interface of imaging sensor or from 840 interface of sensor or from video memory 850 When raw image data, ISP processors 810 can carry out one or more image processing operations, such as time-domain filtering.Treated schemes As data can be transmitted to video memory 850, to carry out other processing before shown.ISP processors 810 are from image Memory 850 receives processing data, and is carried out in original domain and in RGB and YCbCr color spaces to the processing data Image real time transfer.Treated that image data may be output to display 870 that (display 870 may include showing for ISP processors 810 Display screen 550), so that user watches and/or by graphics engine or GPU (Graphics Processing Unit, graphics process Device) it is further processed.In addition, the output of ISP processors 810 also can be transmitted to video memory 850, and display 870 can be from Video memory 850 reads image data.In one embodiment, video memory 850 can be configured as realizing one or more A frame buffer.In addition, the output of ISP processors 810 can be transmitted to encoder/decoder 860, so as to encoding/decoding image Data.The image data of coding can be saved, and be decompressed before being shown in 870 equipment of display.Encoder/decoder 860 can be realized by CPU or GPU or coprocessor.

The statistical data that ISP processors 810 determine, which can be transmitted, gives control logic device Unit 820.For example, statistical data can wrap Include the imaging sensors such as automatic exposure, automatic white balance, automatic focusing, flicker detection, black level compensation, 30 shadow correction of camera lens 10 statistical informations.Control logic device 820 may include the processing element and/or microcontroller that execute one or more routines (such as firmware) Device, one or more routines can determine the control parameter and ISP processors 810 of imaging device 100 according to the statistical data of reception Control parameter.For example, the control parameter of imaging device 100 may include 840 control parameter of sensor (such as gain, exposure control The time of integration, stabilization parameter of system etc.), camera flash control parameter, 30 control parameter of camera lens (such as focus or zoom coke Away from) or these parameters combination.ISP control parameters may include for automatic white balance and color adjustment (for example, in RGB processing Period) 30 shadow correction parameter of gain level and color correction matrix and camera lens.

It is with processor in Figure 19 520 or with (the specially ISP processors of image processing circuit 800 in Figure 20 below 810) the step of realizing acquisition methods：

Further, (it is specially at ISP with processor in Figure 19 520 or with image processing circuit 800 in Figure 20 Reason device 810) following steps can also be performed：

One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with Relevant hardware is instructed to complete by computer program, the program can be stored in that a non-volatile computer is readable to be deposited In storage media, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium Can be magnetic disc, CD, read-only memory (Read-Only Memory, ROM) etc..

Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims

1. a kind of acquisition methods of high dynamic range images are used for imaging device, which is characterized in that the imaging device is for obtaining It includes pixel unit array to take scene image, the imaging device, and the pixel unit array includes multiple pixel units, described Acquisition methods include：

Judge whether the correspondence scene of the scene image is backlight scene；

It is default bright to judge whether the present intensity of environment is more than when the correspondence scene of the scene image is the backlight scene Spend threshold value；

When the imaging device is unstable, multiple original pixels of the pixel unit array output different exposure time are controlled Information；

According to the identical original pixels information of time for exposure in the same pixel unit to obtain multiple merging pixels Information；With

2. the acquisition methods of high dynamic range images according to claim 1, which is characterized in that judge the field described Include after the step of whether the correspondence scene of scape image is backlight scene：

It is described pre- to judge whether the present intensity is more than when the correspondence scene of the scene image is not the backlight scene If luminance threshold；

When the present intensity is more than the predetermined luminance threshold value, with different exposure time control the pixel unit array into Row multiple exposure is to obtain scene image described in multiframe, described in same frame when the exposure of the pixel unit array of scene image Between it is identical；With

The high dynamic range images are obtained according to scene image described in multiframe.

3. the acquisition methods of high dynamic range images according to claim 2, which is characterized in that described in the scene The correspondence scene of image judges whether the present intensity is more than the step of the predetermined luminance threshold value when not being the backlight scene Include after rapid：

When the present intensity is less than or equal to the predetermined luminance threshold value, the pixel unit is controlled with different exposure time Array carries out multiple exposure and merges image to obtain multiframe, and the merging image includes the merging pixel being arranged in array, same A pixel unit merges one merging pixel of output, and the difference pixel unit of image is merged described in same frame Time for exposure is identical；With

The high dynamic range images are obtained according to image is merged described in multiframe.

4. the acquisition methods of high dynamic range images according to claim 1, which is characterized in that described in the scene The correspondence scene of image judges the step of whether present intensity of environment is more than predetermined luminance threshold value when being the backlight scene after Including：

5. the acquisition methods of high dynamic range images according to claim 1, which is characterized in that described described current Include after judging the step whether imaging device is stablized when brightness is more than the predetermined luminance threshold value：

When the imaging device is stablized, the pixel unit array is controlled with different exposure time and carries out multiple exposure to obtain The time for exposure of scene image described in multiframe, the pixel unit array of scene image described in same frame is identical；With

6. a kind of acquisition device of high dynamic range images is used for imaging device, which is characterized in that the imaging device is for obtaining It includes pixel unit array to take scene image, the imaging device, and the pixel unit array includes multiple pixel units, described Acquisition device includes：

First judgment module, first judgment module is for judging whether the correspondence scene of the scene image is backlight field Scape；

Second judgment module, second judgment module are used for when the correspondence scene of the scene image is the backlight scene Judge whether the present intensity of environment is more than predetermined luminance threshold value；

Third judgment module, the third judgment module are used to judge when the present intensity is more than the predetermined luminance threshold value Whether the imaging device is stablized；

First control module, first control module are used for when the imaging device is unstable, control the pixel unit Array exports multiple original pixels information of different exposure time；

Merging module, the merging module are used for according to the time for exposure identical original image in the same pixel unit Prime information is to obtain multiple merging Pixel Informations；With

First output module, first output module are used to export the high dynamic range according to multiple merging Pixel Informations Enclose image.

7. the acquisition device of high dynamic range images according to claim 6, which is characterized in that acquisition device includes：

4th judgment module, the 4th judgment module are used in the correspondence scene of the scene image not be the backlight scene When judge the present intensity whether be more than the predetermined luminance threshold value；

Second control module, second control module are used for when the present intensity is more than the predetermined luminance threshold value, with Different exposure time controls the pixel unit array and carries out multiple exposure to obtain scene image described in multiframe, described in same frame The time for exposure of the pixel unit array of scene image is identical；With

Second output module, second output module are used to obtain the high dynamic range figure according to scene image described in multiframe Picture.

8. the acquisition device of high dynamic range images according to claim 7, which is characterized in that acquisition device includes：

Third control module, the third control module are used to be less than or equal to the predetermined luminance threshold value in the present intensity When, the pixel unit array is controlled with different exposure time and carries out multiple exposure to obtain multiframe merging image, the merging Image includes the merging pixel being arranged in array, and the same pixel unit merges one merging pixel of output, same The time for exposure for merging the difference pixel unit of image described in frame is identical；With

Third output module, the third output module are used to obtain the high dynamic range figure according to merging image described in multiframe Picture.

9. the acquisition device of high dynamic range images according to claim 6, which is characterized in that acquisition device includes：

4th control module, the 4th control module are used to be less than or equal to the predetermined luminance threshold value in the present intensity When, the pixel unit array is controlled with different exposure time and carries out multiple exposure to obtain multiframe merging image, the merging Image includes the merging pixel being arranged in array, and the same pixel unit merges one merging pixel of output, same The time for exposure for merging the difference pixel unit of image described in frame is identical；With

4th output module, the 4th output module are used to obtain the high dynamic range figure according to merging image described in multiframe Picture.

10. the acquisition device of high dynamic range images according to claim 6, which is characterized in that acquisition device includes：The Five control modules, the 5th control module are used for when the imaging device is stablized, and the picture is controlled with different exposure time Plain cell array carries out multiple exposure to obtain scene image described in multiframe, the pixel unit of scene image described in same frame The time for exposure of array is identical；With

5th output module, the 5th output module are used to obtain the high dynamic range figure according to scene image described in multiframe Picture.

11. a kind of imaging device, which is characterized in that for obtaining scene image, the imaging device includes the imaging device Pixel unit array, the pixel unit array include multiple pixel units, and the imaging device further includes processor, the place Reason device is used for：

Judge whether the correspondence scene of the scene image is backlight scene；

12. imaging device according to claim 11, which is characterized in that each pixel unit includes long exposure picture Plain, middle exposing pixels and short exposure pixel, when the time for exposure of the long exposing pixels is more than the exposure of the middle exposing pixels Between, and the time for exposure of the middle exposing pixels is more than the short exposure time of the short exposure pixel.

13. imaging device according to claim 11, which is characterized in that be in the correspondence scene for judging the scene image It is no be backlight scene the step of after, the processor is additionally operable to：

14. imaging device according to claim 13, which is characterized in that in the correspondence scene of the scene image be not institute After judging the step of whether present intensity is more than the predetermined luminance threshold value when stating backlight scene, the processor is also used In：

15. imaging device according to claim 11, which is characterized in that in the correspondence scene of the scene image be described After judging the step of whether present intensity of environment is more than predetermined luminance threshold value when backlight scene, the processor is additionally operable to：

16. imaging device according to claim 11, which is characterized in that be more than the predetermined luminance in the present intensity After judging the step whether imaging device is stablized when threshold value, the processor is additionally operable to：

17. one or more includes the non-volatile computer readable storage medium storing program for executing of computer executable instructions, when the calculating When machine executable instruction is executed by one or more processors so that the processor perform claim requires any one of 1 to 5 institute The acquisition methods for the high dynamic range images stated.

18. a kind of computer equipment, including memory and processor, computer-readable instruction is stored in the memory, institute Instruction is stated when being executed by the processor so that the high dynamic range described in any one of described processor perform claim requirement 1 to 5 Enclose the acquisition methods of image.