CN106034209B - Obtain the method and device of video - Google Patents
Obtain the method and device of video Download PDFInfo
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- CN106034209B CN106034209B CN201610214161.XA CN201610214161A CN106034209B CN 106034209 B CN106034209 B CN 106034209B CN 201610214161 A CN201610214161 A CN 201610214161A CN 106034209 B CN106034209 B CN 106034209B
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- 238000003384 imaging method Methods 0.000 claims description 19
- 230000004888 barrier function Effects 0.000 claims description 8
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/743—Bracketing, i.e. taking a series of images with varying exposure conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N5/14—Picture signal circuitry for video frequency region
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Abstract
The disclosure discloses a kind of method and device for obtaining video, belongs to video technique field.The method for obtaining video includes: to be exposed processing to photosensitive pixel array in present image collection period；Wherein, each exposure-processed includes: to the photosensitive pixel array, it is that the photosensitive pixel array determines target light exposure series at least two exposure series, each corresponding video-out port of the exposure series, the photosensitive pixel array is exposed according to the target light exposure series, obtain the first picture frame, and the video-out port corresponding to the target light exposure series exports the first image frame；The picture frame of the corresponding video-out port output of each exposure series is formed by video and is determined as the corresponding video of each exposure series；It solves the problems, such as to understand detection different things；Achieve the effect that improve detection things verification and measurement ratio.
Description
Technical field
This disclosure relates to video technique field, in particular to a kind of method and device for obtaining video.
Background technique
With the development of science and technology, video will be used wider and wider it is general.For example, in intelligent vehicular visual system,
It can be used for detecting lane line, vehicle, pedestrian, car light and traffic sign etc. in front of intelligent vehicle by the video that camera is got,
So that intelligent vehicle specification travels.
Currently, the camera in intelligent vehicular visual system obtains video by the following method: according to determining exposure time
Control imaging sensor carries out multiple exposure to the photosensitive pixel array in imaging sensor in present image collection period and obtains
Multiple images frame exports the multiple images frame after exposure from preset video-out port, forms video.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems: passing through the prior art
The video of formation can only preferably detect one or two kinds of things in front of intelligent vehicle, and there are many not in front of intelligent vehicle
It when with things, is difficult to detect or examine not measuring, identity is poor, seriously affects intelligent vehicle traveling.
Summary of the invention
In order to solve the problems, such as present in the relevant technologies, the disclosure provides a kind of method and device for obtaining video.It is described
Technical solution is as follows:
According to the first aspect of the embodiments of the present disclosure, a kind of method obtaining video is provided, this method comprises:
Processing is exposed to photosensitive pixel array in present image collection period, the photosensitive pixel array is mounted on
In imaging sensor, each pair of photosensitive pixel array exposure-processed is primary, obtains a frame image；
Wherein, each exposure-processed includes: to the photosensitive pixel array, is the sense at least two exposure series
Light image pixel array determines that target light exposure series, the exposure series react exposure time, and at least two exposures series is corresponding
Different exposure time, each corresponding video-out port of the exposure series, exposes according to the target light exposure series
The photosensitive pixel array, obtains the first picture frame, and the video-out port output corresponding to the target light exposure series
The first image frame；
By the picture frame of each exposure series corresponding video-out port output be formed by video be determined as it is described every
The corresponding video of a exposure series.
It is optionally, described that the photosensitive pixel array is exposed according to the target light exposure series, comprising:
There are the second picture frame before the first image frame, and the corresponding exposure series of second picture frame and institute
State target light exposure series it is identical when, obtain the image feature value of second picture frame；
The corresponding relationship that preset image feature value and exposure time are inquired according to described image characteristic value obtains the mesh
The corresponding exposure time of mark exposure series；
According to the corresponding exposure time of the target light exposure series, control imaging sensor to the photosensitive pixel array into
Row exposure.
Optionally, it is described at least two exposure series include three exposure series, respectively level-one expose, second level exposure with
Three-level exposure, and the exposure time of level-one exposure is greater than the exposure time of second level exposure, the exposure time of second level exposure is greater than three
The exposure time of grade exposure,
Video is formed by the picture frame by the corresponding video-out port output of each exposure series to be determined as
After the corresponding video of each exposure series, the method also includes:
Corresponding video detection lane line is exposed using the level-one；
Corresponding video is exposed using the level-one and the second level exposes corresponding video detection barrier；
Corresponding video is exposed using the level-one and the three-level exposes corresponding video detection car light.
Optionally, it is 1.4 milliseconds -2.0 milliseconds a length of when the level-one exposure is corresponding；The second level exposes corresponding duration
It is 0.8 millisecond -1.4 milliseconds；The three-level is 0.1 millisecond -0.7 millisecond a length of when exposing corresponding.
Optionally, the n-th that the exposure-processed that the photosensitive pixel array carries out is present image collection period is exposed
Processing, it is described to the photosensitive pixel array, it is that the photosensitive pixel array determines that target exposes at least two exposure series
Optical orders, comprising:
N is obtained divided by the remainder of x, the x is the number for exposing series；
The sum of the remainder and 1 is determined as the target light exposure series.
According to the second aspect of an embodiment of the present disclosure, a kind of device for obtaining video is provided, which includes:
Exposure module, it is described photosensitive for being exposed processing to photosensitive pixel array in present image collection period
Pixel array is mounted in imaging sensor, and each pair of photosensitive pixel array exposure-processed is primary, obtains a frame image；
Wherein, each exposure-processed includes: to the photosensitive pixel array, is the sense at least two exposure series
Light image pixel array determines that target light exposure series, the exposure series react exposure time, and at least two exposures series is corresponding
Different exposure time, each corresponding video-out port of the exposure series, exposes according to the target light exposure series
The photosensitive pixel array, obtains the first picture frame, and the video-out port output corresponding to the target light exposure series
The first image frame；
Determining module, for the picture frame of the corresponding video-out port output of each exposure series to be formed by video
It is determined as the corresponding video of each exposure series.
Optionally, the exposure module includes:
First acquisition unit, for before the first image frame there are the second picture frame, and second picture frame
When corresponding exposure series is identical as the target light exposure series, the image feature value of second picture frame is obtained；
Query unit, for being inquired according to described image characteristic value, preset image feature value is corresponding with exposure time to be closed
System, obtains the corresponding exposure time of the target light exposure series；
Control unit, for controlling imaging sensor to described according to the corresponding exposure time of the target light exposure series
Photosensitive pixel array is exposed.
Optionally, it is described at least two exposure series include three exposure series, respectively level-one expose, second level exposure with
Three-level exposure, and the exposure time of level-one exposure is greater than the exposure time of second level exposure, the exposure time of second level exposure is greater than three
The exposure time of grade exposure, described device further include:
First detection module, for exposing corresponding video detection lane line using the level-one；
Second detection module, for exposing corresponding video and the corresponding video inspection of second level exposure using the level-one
Survey barrier；
Third detection module, for exposing corresponding video and the corresponding video inspection of three-level exposure using the level-one
Measuring car lamp.
Optionally, it is 1.4 milliseconds -2.0 milliseconds a length of when the level-one exposure is corresponding；The second level exposes corresponding duration
It is 0.8 millisecond -1.4 milliseconds；The three-level is 0.1 millisecond -0.7 millisecond a length of when exposing corresponding.
Optionally, the n-th that the exposure-processed that the photosensitive pixel array carries out is present image collection period is exposed
Processing, the exposure module, comprising:
Second acquisition unit, for obtaining n divided by the remainder of x, the x is the number for exposing series；
Determination unit, for the sum of the remainder and 1 to be determined as the target light exposure series.
The technical scheme provided by this disclosed embodiment can include the following benefits:
By in each image acquisition period, according to different exposure series exposed photosensitive pixel arrays, every exposure
The primary photosensitive pixel array obtains frame exposure image corresponding with the exposure series, by each frame exposure image according to each
The optical orders that expose oneself export the exposure image from the corresponding video-out port of exposure series, and then in each video output terminals degree of lip-rounding
It, therefore, can be from each exposure when having the things of different characteristic using video detection at video corresponding with each exposure series
At least one video that selection is easier to detect the things in the corresponding video of optical orders carries out detecting the things；Solving cannot
The problem of clearly detecting different things；Achieve the effect that improve detection things verification and measurement ratio.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
It is open.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and consistent with the instructions for explaining the principles of this disclosure.
Fig. 1 is showing for implementation environment involved in a kind of method of the acquisition video exemplified according to exemplary partial implementation
It is intended to；
Fig. 2 is a kind of flow chart of method for obtaining video shown according to an exemplary embodiment；
Fig. 3 A is a kind of flow chart of the method for the acquisition video shown according to another exemplary embodiment；
Fig. 3 B is a kind of flow chart of the method for exposed photosensitive pixel array shown according to another exemplary embodiment；
Fig. 4 A is a kind of block diagram for obtaining video-unit shown according to an exemplary embodiment；
Fig. 4 B is a kind of block diagram of the exposed photosensitive pixel array device shown according to another exemplary embodiment；
Fig. 4 C is a kind of block diagram of exposed photosensitive pixel array device shown according to another exemplary embodiment；
Fig. 4 D is a kind of block diagram of the acquisition video-unit shown according to a further exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is showing for implementation environment involved in a kind of method of the acquisition video exemplified according to exemplary partial implementation
It is intended to, as shown in Figure 1, the implementation environment may include: photosensitive pixel array 110 and image processor 120.
The photosensitive pixel array 110 is mounted in imaging sensor, which can be according to the image processor 120
Determining exposure time is exposed processing to the photosensitive pixel array 110.Each pair of feeling pixel array 110 is exposed place
An exposed frame image once can be obtained in reason, and exposes the photosensitive pixel array 110 according to different exposure times and can be obtained not
Same exposure image.
The image processor 120 can determine exposure series for each exposure-processed, and control the imaging sensor according to this
Determining exposure series exposes the photosensitive pixel array 110.The image processor 120 further includes several video-out ports,
Each video-out port is corresponding with an exposure series, for being output in the corresponding exposure image of exposure series, in turn
Form the corresponding video of exposure series.
Fig. 2 is a kind of flow chart of method for obtaining video shown according to an exemplary embodiment, as shown in Fig. 2, should
The method for obtaining video is applied in the image processor 120 in implementation environment shown in FIG. 1, method includes the following steps:
In step 201, processing is exposed to photosensitive pixel array in present image collection period.
Wherein, which is mounted in imaging sensor, and each pair of photosensitive pixel array exposure-processed is primary,
Obtain a frame image.
Wherein, each exposure-processed includes: to the photosensitive pixel array, is the light-sensitive image at least two exposure series
Pixel array determines target light exposure series, which reacts exposure time, which corresponds to different exposures
Light time is long, and each corresponding video-out port of the exposure series exposes the light-sensitive image primitive matrix according to the target light exposure series
Column, obtain the first picture frame, and the video-out port corresponding to the target light exposure series exports first picture frame.
In step 202, the picture frame by the corresponding video-out port output of each exposure series is formed by video
It is determined as the corresponding video of each exposure series.
In conclusion the method for the acquisition video provided in the embodiment of the present disclosure, by each image acquisition period
Interior, according to different exposure series exposed photosensitive pixel arrays, every once photosensitive pixel array that exposes obtains a frame and the exposure
The corresponding exposure image of optical orders, by each frame exposure image according to the respective series that exposes from the corresponding video of exposure series
Output port exports the exposure image, and then forms video corresponding with each exposure series in each video-out port, therefore,
When having the things of different characteristic using video detection, can select to be easier to detect from the corresponding video of each exposure series
At least one video of the things carries out detecting the things；It solves the problems, such as to understand detection different things；Reach and has mentioned
The effect of high detection things verification and measurement ratio.
Fig. 3 A is a kind of flow chart of the method for the acquisition video shown according to another exemplary embodiment, such as Fig. 3 A institute
Show, the method for the acquisition video is applied in the image processor 120 in implementation environment shown in FIG. 1, comprising the following steps:
In step 301, in present image collection period, to photosensitive pixel array, at least two exposure series
Target light exposure series is determined for the photosensitive pixel array.
Wherein, which is mounted in imaging sensor, and each pair of photosensitive pixel array exposure-processed is primary,
Obtain a frame image.
The image acquisition period is consistent with the period of the imaging sensor, and the period of the imaging sensor refers to the image sensing
Device is exposed the period of processing to the photosensitive pixel array, which is usually arranged as one second.
Optionally, which can also be determined according to the actual situation, be set as longer a period of time,
Such as one minute, one hour etc..
The imaging sensor can be selected according to practical application scene, be not specifically limited.For example, working as the video acquisition
Method is applied in intelligent vehicular visual system, and the intelligent vehicular visual system is for detecting front lane line, barrier, traffic sign
Resolution ratio Deng, the imaging sensor can be 752*480, and frame frequency can be per second for 60 frames, and pixel size can be 6 micron * 6
Micron, can be color image sensor, is also possible to black white image sensor.
The exposure series reacts exposure time, which corresponds to different exposure times, and each should
Expose the corresponding video-out port of series, the video-out port is for exporting the target light exposure series corresponding each the
One picture frame, the target light exposure series exposes the picture frame obtained after the photosensitive pixel array according to first picture frame.
It optionally, can be by the following method the light-sensitive image at least two exposure series to the photosensitive pixel array
Pixel array determines target light exposure series: when that the exposure-processed carried out to the photosensitive pixel array is present image collection period
When n times exposure-processed, firstly, obtaining n divided by the remainder of x, which is the number for exposing series；Then by the remainder and 1 and make
For the target light exposure series.For example, there are three the exposures of series altogether, to the photosensitive pixel in the image acquisition period
Array works as the 4th exposure-processed that previous exposure-processed is present image collection period, then with 4 divided by 3, obtaining remainder is 1,
The remainder 1 and 1 is made and obtains data 2, then the target light exposure series is 2 grades.
Optionally, which can also be directly disposed as to the target light exposure series, still by taking above-mentioned example as an example, then the target
Exposing series is 1 grade.
In step 302, which is exposed according to the target light exposure series, obtains the first picture frame, and from
Video-out port corresponding to the target light exposure series exports first picture frame.
Optionally, referring to Fig. 3 B, the photosensitive pixel array can be exposed according to the target light exposure series by the following method, it should
Method includes:
In step 302a, there are the second picture frames before first picture frame, and the corresponding exposure of the second picture frame
When optical orders are identical as the target light exposure series, the image feature value of second picture frame is obtained.
The image feature value includes image grayscale average value, in brightness of image average value or other image feature values at least
It is a kind of.
When picture frame is not present before first picture frame, the characteristics of image of default can be set according to current exposure series
Value.For example, the number for exposing series is 3, then this 3 exposure series difference when the image feature value is image grayscale average value
For level-one exposure, second level exposure and three-level exposure, it is 200, two that settable level-one, which exposes corresponding default image average gray,
It is 170 that grade, which exposes corresponding default image average gray, and it is 80 that three-level, which exposes corresponding default image average gray,.
Optionally, existing before first picture frame can also be obtained, and the default figure with identical exposure series
As frame, the average value of the image feature value of the default picture frame is obtained, to obtain more accurate image feature value.
In step 302b, preset image feature value pass corresponding with exposure time is inquired according to the image feature value
System, obtains the corresponding exposure time of target light exposure series.
Optionally, the corresponding relationship of image feature value and exposure time can be established by the following method: determining first first
Exposure time obtains first frame exposure image according to the first exposure time exposed photosensitive pixel array, artificially observe this first
Exposed frame image whether can more clearly detect preset first things (first things according to the difference of usage scenario and
It is fixed, for example the video obtained for Vehicular system, then first things can be lane line, pedestrian or traffic mark etc.), if
The image feature value that the first frame exposure image can then be calculated, obtains the first image feature value, and records first image spy
The corresponding relationship of value indicative and the first exposure time；If it is not possible, then giving up first exposure time, and when determining second exposure
It is long, according to the second exposure time exposed photosensitive pixel array, the second exposed frame image is obtained, artificially observes second exposed frame
Whether image can more clearly detect preset first things, if can if calculate the second exposed frame image image it is special
Value indicative obtains the second image feature value, and records the corresponding relationship of second image feature value and the second exposure time；If no
It can be then to give up second exposure time, and determine third exposure time, successively determine different exposure times according to the method described above
With the corresponding relationship of image feature value, by the corresponding relationship of the difference exposure time and image feature value, as the characteristics of image
The corresponding relationship of value and exposure time.
It optionally, can be according to the exposure time multiple exposure light-sensitive image primitive matrix for the exposure time of each determination
Column, obtain multi-frame exposure image, and calculate the average value of the image feature value of the multi-frame exposure image, record the average value and are somebody's turn to do
The corresponding relationship of exposure time, when the corresponding relationship of the average value and exposure time is determined as an image feature value and exposure
Long corresponding relationship determines the corresponding relationship of image feature value and exposure time by using multi-frame exposure image, improves the figure
As the accuracy of characteristic value and exposure time corresponding relationship.
In addition, the corresponding relationship of how many for determination pairs of image feature values and exposure time, it can be according to application scenarios, exposure
Total series and the characteristics of image of selection are specifically determined, are not set forth in detail herein.
It should be noted that for the image feature value obtained in step 302a, it is likely that the image feature value with
Inquiry, at this time can be with less than the image feature value completely the same with the image feature value of the acquisition in the corresponding relationship of exposure time
Exposure time corresponding with the immediate image feature value of the image feature value of the acquisition in the corresponding relationship is determined as this to obtain
The corresponding exposure time of the image feature value taken.
Optionally, the immediate image feature value can be obtained by the following method: by the image feature value of the acquisition with
All image feature values do difference operation in corresponding relationship, obtain difference to difference operation each time and take absolute value, and obtain institute
There is the smallest absolute value in absolute value, the corresponding image feature value of the smallest absolute value is determined as to the characteristics of image of the acquisition
It is worth corresponding image feature value.
This step can be with are as follows: according to the image feature value of second picture frame from preset image feature value and exposure time
Corresponding relationship in obtain the immediate image feature value of the second image feature value, the immediate image feature value is corresponding
Exposure time, be determined as the corresponding exposure time of target light exposure series.
In step 302c, according to the corresponding exposure time of target light exposure series, it is photosensitive to this to control imaging sensor
Pixel array is exposed.
In step 303, the picture frame by the corresponding video-out port output of each exposure series is formed by video
It is determined as the corresponding video of each exposure series.
Illustratively, when the number for exposing series is 3, then exposing series is respectively level-one exposure, second level exposure and three
Grade exposure, the image obtained after exposure is respectively level-one exposure image, second level exposure image and three-level exposure image；By all one
Grade exposure image exposes corresponding video-out port output from level-one, forms level-one and exposes corresponding video；By all second levels
Exposure image exposes corresponding video-out port output from second level, forms second level and exposes corresponding video；All three-levels are exposed
Light image exposes corresponding video-out port output from three-level, forms three-level and exposes corresponding video.
In step 304, according at least one preset corresponding video detection vehicle periphery things of the exposure series.
Exemplary, which generally comprises lane line, barrier and car light of vehicle front etc..
Optionally, which includes three exposure series, and respectively level-one exposes, second level exposure and three
Grade exposure, and the exposure time of level-one exposure is greater than the exposure time of second level exposure, the exposure time of second level exposure is greater than three-level
The exposure time of exposure.Optionally, it is 1.4 milliseconds -2.0 milliseconds a length of when level-one exposure is corresponding；Second level exposure is corresponding
0.8 millisecond -1.4 milliseconds of Shi Changwei；Three-level exposure is 0.1 millisecond -0.7 millisecond a length of when corresponding.
Optionally, can according to the feature of vehicle periphery things, using in this three corresponding videos of exposure series at least
The things of one video detection vehicle periphery.For example, the detection of the lane line to vehicle front, since lane line is generally white
Color or yellow, and white or yellow are generally brighter, the level-one, which can be used, exposes corresponding video detection lane line, because
The level-one exposes in corresponding video, and photosensitive pixel array carries out overexposure, and lane line is made to be buried in over-exposed region
In, lane line is detected from the overexposure region；The barrier of vehicle front is generally pedestrian and vehicle, and pedestrian and vehicle
Color and brightness it is generally more many and diverse, so the color and brightness of pedestrian and vehicle uncertainty with higher, so can
To expose corresponding video using the level-one simultaneously, corresponding video is detected with second level exposure；And the car light at night compared with
It is bright, but car light ambient light is darker, since shade distinctions are larger, can expose corresponding video using the level-one simultaneously and be somebody's turn to do
Three-level exposes corresponding video and is detected, and optionally, since car light color is partially red, and other light are white under normal circumstances
Or other colors, and hence it is also possible in conjunction with the infomation detection lights of vehicle of red component in exposure image.
Optionally, for the traffic sign of vehicle front, since traffic sign generally will include red, green and Huang Dengyan
The bright color of colour cast, can be used the position that level-one exposes corresponding video detection traffic mark, expose corresponding view using second level
Frequency detects specific confirmation traffic sign, using level-one can expose corresponding video simultaneously and the second level expose corresponding video into
Row detection.
Optionally, since the light of day and night is different, vehicle periphery things and light are different in addition, can be according to specific
The corresponding video of difference exposure series needed for situation chooses the detection vehicle periphery things.Such as when daytime, light was preferable,
Pedestrian and the vehicle of vehicle front can also be only detected with the corresponding video detection of second level exposure series.
Optionally, the method for the acquisition video can be also applied to other scenes, such as intelligent vehicular visual system, in intelligence
It, can be according to the characteristics of different things, the number of determining exposure series obtains different exposure levels in front of intelligent vehicle in vehicle video system
Then the corresponding video of number chooses at least one view from multiple videos of acquisition according to the characteristics of the different things of intelligent vehicle front
Different things in front of frequency detection intelligent vehicle.
In conclusion the method for the acquisition video provided in the embodiment of the present disclosure, by each image acquisition period
Interior, according to different exposure series exposed photosensitive pixel arrays, every once photosensitive pixel array that exposes obtains a frame and the exposure
The corresponding exposure image of optical orders, by each frame exposure image according to the respective series that exposes from the corresponding video of exposure series
Output port exports the exposure image, and then forms video corresponding with each exposure series in each video-out port, therefore,
When having the things of different characteristic using video detection, can select to be easier to detect from the corresponding video of each exposure series
At least one video of the things carries out detecting the things；It solves the problems, such as to understand detection different things；Reach and has mentioned
The effect of high detection things verification and measurement ratio.
Following is embodiment of the present disclosure, can be used for executing embodiments of the present disclosure.It is real for disclosure device
Undisclosed details in example is applied, embodiments of the present disclosure is please referred to.
Fig. 4 A is that a kind of block diagram for obtaining video-unit 400 shown according to an exemplary embodiment as shown in Figure 4 A should
It obtains in the image processor 120 that video-unit 400 is applied in implementation environment shown in Fig. 1, the acquisition video-unit 400 packet
It includes: exposure module 401 and determining module 402.
Exposure module 401, for being exposed processing to photosensitive pixel array in present image collection period, this is photosensitive
Pixel array is mounted in imaging sensor, and each pair of photosensitive pixel array exposure-processed is primary, obtains a frame image.
Wherein, each exposure-processed includes: to the photosensitive pixel array, is the light-sensitive image at least two exposure series
Pixel array determines target light exposure series, which reacts exposure time, which corresponds to different exposures
Light time is long, and each corresponding video-out port of the exposure series exposes the light-sensitive image primitive matrix according to the target light exposure series
Column, obtain the first picture frame, and the video-out port corresponding to the target light exposure series exports first picture frame.
Determining module 402, for the picture frame of the corresponding video-out port output of each exposure series to be formed by
Video is determined as the corresponding video of each exposure series.
It optionally, is at the n-th exposure of present image collection period to the exposure-processed that the photosensitive pixel array carries out
It manages, referring to fig. 4 B, the exposure module 401, comprising:
Second acquisition unit 4011, for obtaining n divided by the remainder of x, which is the number for exposing series；
Determination unit 4012, for the sum of the remainder and 1 to be determined as the target light exposure series.
Optionally, C, the exposure module 401 include: referring to fig. 4
First acquisition unit 4013, for working as first picture frame, there are the second picture frames before, and second picture frame
When corresponding exposure series is identical as the target light exposure series, the image feature value of second picture frame is obtained.
Query unit 4014, it is corresponding with exposure time for inquiring preset image feature value according to the image feature value
Relationship obtains the corresponding exposure time of target light exposure series.
Control unit 4015, for controlling imaging sensor to this according to the corresponding exposure time of target light exposure series
Photosensitive pixel array is exposed.
Optionally, which includes three exposure series, and respectively level-one exposes, second level exposure and three
Grade exposure, and the exposure time of level-one exposure is greater than the exposure time of second level exposure, the exposure time of second level exposure is greater than three-level
The exposure time of exposure, optionally, D referring to fig. 4, the acquisition video-unit 400 further include:
First detection module 403, for exposing corresponding video detection lane line using the level-one.
Second detection module 404, for exposing corresponding video and the corresponding video inspection of second level exposure using the level-one
Survey barrier.
Third detection module 405, for exposing corresponding video and the corresponding video inspection of three-level exposure using the level-one
Measuring car lamp.
Optionally, it is 1.4 milliseconds -2.0 milliseconds a length of when level-one exposure is corresponding；Second level exposure is a length of when corresponding
0.8 millisecond -1.4 milliseconds；Three-level exposure is 0.1 millisecond -0.7 millisecond a length of when corresponding.
In conclusion the acquisition video-unit provided in the embodiment of the present disclosure, by each image acquisition period,
According to different exposure series exposed photosensitive pixel arrays, every once photosensitive pixel array that exposes obtains a frame and the exposure level
The corresponding exposure image of number exports each frame exposure image according to respective exposure series from the corresponding video of the exposure series
Port exports the exposure image, and then therefore makes in each video-out port formation video corresponding with each exposure series
When there is the things of different characteristic with video detection, it can select to be easier to detect the thing from the corresponding video of each exposure series
At least one video of object carries out detecting the things；It solves the problems, such as to understand detection different things；Raising inspection is reached
Survey the effect of things verification and measurement ratio.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (8)
1. a kind of method for obtaining video, which is characterized in that the described method includes:
Processing is exposed to photosensitive pixel array in present image collection period, the photosensitive pixel array is mounted on image
In sensor, each pair of photosensitive pixel array exposure-processed is primary, obtains a frame image；
Wherein, each exposure-processed includes: to the photosensitive pixel array, is the light-sensitive image at least two exposure series
Pixel array determines that target light exposure series, the exposure series react exposure time, and at least two exposures series is corresponding different
Exposure time, the corresponding video-out port of each exposure series, according to target light exposure series exposure
Photosensitive pixel array, obtains the first picture frame, and described in the video-out port output corresponding to the target light exposure series
First picture frame；
The picture frame of the corresponding video-out port output of each exposure series is formed by video and is determined as each exposure
The corresponding video of optical orders；
It is described that the photosensitive pixel array is exposed according to the target light exposure series, comprising: to be deposited before the first image frame
In the second picture frame, and when the corresponding exposure series of second picture frame is identical as the target light exposure series, described in acquisition
The image feature value of second picture frame；It is corresponding with exposure time that preset image feature value is inquired according to described image characteristic value
Relationship obtains the corresponding exposure time of the target light exposure series；According to the corresponding exposure time of the target light exposure series, control
Imaged sensor is exposed the photosensitive pixel array.
2. the method according to claim 1, wherein
At least two exposures series includes three exposure series, and respectively level-one exposes, second level exposure and three-level exposure, and
The exposure time of level-one exposure is greater than the exposure time of second level exposure, and the exposure time of second level exposure is greater than the exposure of three-level exposure
Duration,
The picture frame by the corresponding video-out port output of each exposure series be formed by video be determined as it is described
After the corresponding video of each exposure series, the method also includes:
Corresponding video detection lane line is exposed using the level-one；
Corresponding video is exposed using the level-one and the second level exposes corresponding video detection barrier；
Corresponding video is exposed using the level-one and the three-level exposes corresponding video detection car light.
3. according to the method described in claim 2, it is characterized in that,
The level-one is 1.4 milliseconds -2.0 milliseconds a length of when exposing corresponding；
The second level is 0.8 millisecond -1.4 milliseconds a length of when exposing corresponding；
The three-level is 0.1 millisecond -0.7 millisecond a length of when exposing corresponding.
4. method according to any one of claims 1 to 3, which is characterized in that the exposure carried out to the photosensitive pixel array
Processing is the n-th exposure-processed of present image collection period, described to the photosensitive pixel array, at least two exposure levels
It is that the photosensitive pixel array determines target light exposure series in number, comprising:
N is obtained divided by the remainder of x, the x is the number for exposing series；
The sum of the remainder and 1 is determined as the target light exposure series.
5. a kind of device for obtaining video, which is characterized in that described device includes:
Exposure module, for being exposed processing, the photosensitive pixel to photosensitive pixel array in present image collection period
Array is mounted in imaging sensor, and each pair of photosensitive pixel array exposure-processed is primary, obtains a frame image；
Wherein, each exposure-processed includes: to the photosensitive pixel array, is the light-sensitive image at least two exposure series
Pixel array determines that target light exposure series, the exposure series react exposure time, and at least two exposures series is corresponding different
Exposure time, the corresponding video-out port of each exposure series, according to target light exposure series exposure
Photosensitive pixel array, obtains the first picture frame, and described in the video-out port output corresponding to the target light exposure series
First picture frame；
Determining module is determined for the picture frame of the corresponding video-out port output of each exposure series to be formed by video
For the corresponding video of each exposure series；
The exposure module includes: first acquisition unit, for before the first image frame there are the second picture frame, and institute
State the corresponding exposure series of the second picture frame it is identical as the target light exposure series when, the image for obtaining second picture frame is special
Value indicative；Query unit, for inquiring the corresponding relationship of preset image feature value and exposure time according to described image characteristic value,
Obtain the corresponding exposure time of the target light exposure series；Control unit, for according to the corresponding exposure of the target light exposure series
Light time is long, and control imaging sensor is exposed the photosensitive pixel array.
6. device according to claim 5, which is characterized in that
At least two exposures series includes three exposure series, and respectively level-one exposes, second level exposure and three-level exposure, and
The exposure time of level-one exposure is greater than the exposure time of second level exposure, and the exposure time of second level exposure is greater than the exposure of three-level exposure
Duration,
Described device further include:
First detection module, for exposing corresponding video detection lane line using the level-one；
Second detection module, for exposing corresponding video and the corresponding video detection barrier of second level exposure using the level-one
Hinder object；
Third detection module, for exposing corresponding video and the corresponding video detection vehicle of three-level exposure using the level-one
Lamp.
7. device according to claim 6, which is characterized in that
The level-one is 1.4 milliseconds -2.0 milliseconds a length of when exposing corresponding；
The second level is 0.8 millisecond -1.4 milliseconds a length of when exposing corresponding；
The three-level is 0.1 millisecond -0.7 millisecond a length of when exposing corresponding.
8. according to any device of claim 5 to 7, which is characterized in that the exposure carried out to the photosensitive pixel array
Processing is the n-th exposure-processed of present image collection period, the exposure module, comprising:
Second acquisition unit, for obtaining n divided by the remainder of x, the x is the number for exposing series；
Determination unit, for the sum of the remainder and 1 to be determined as the target light exposure series.
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