CN106454147B - Image Acquisition light compensation method and device - Google Patents
Image Acquisition light compensation method and device Download PDFInfo
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- CN106454147B CN106454147B CN201610941489.1A CN201610941489A CN106454147B CN 106454147 B CN106454147 B CN 106454147B CN 201610941489 A CN201610941489 A CN 201610941489A CN 106454147 B CN106454147 B CN 106454147B
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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
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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Abstract
The present invention provides a kind of Image Acquisition light compensation method and device.The described method includes: obtaining the image information in the lane, wherein angle of extending direction and light filling band of the lane in the image information of described image acquisition equipment acquisition between the direction in described image information is less than predetermined acute angle；Obtained location information of the vehicle lane in described image information；The benefit the position of optic strip for adjusting described image acquisition device according to the positional information makes the light filling band cover the region for crossing vehicle lane where in described image information.The above method and device, the clear acquisition to vehicle image under dim weather environment is realized by using inexpensive Rolling shutter, solves the problems, such as that vehicle clear image can not be taken during dim weather environment captures vehicle illegal behavior using Rolling shutter in the prior art.
Description
Technical field
The present invention relates to image acquisition technologies, in particular to a kind of Image Acquisition light compensation method and device.
Background technique
In the prior art, the image capture device (for example, bayonet camera) in bayonet system is generallyd use to Travel vehicle
Illegal activities (for example, hit-and-run, violate the traffic regulations) captured, bayonet system can cross vehicle to monitoring section
Lane carries out round-the-clock real time monitoring and records dependent image data.Imaging sensor in above-mentioned image capture device is most of
Use the metal-oxide semiconductor (MOS) of charge coupled cell (Charge-coupled Device, CCD) and global exposure
(Complementary Metal Oxide Semiconductor, CMOS) Lai Shixian, using the CMOS of CCD and global exposure
It may be implemented to carry out round-the-clock real time monitoring to the vehicle lane of crossing in monitoring section, but there is that image capture device is at high cost to be lacked
It falls into.
For this purpose, illegal as the imaging sensor progress in image capture device using the lower Rolling shutter CMOS of price
Behavior, which is captured, becomes a kind of selection well, in order to guarantee still to obtain in dim weather environment (for example, night or thundery sky)
Take the image information that clarity is met the requirements.It is real in such a way that the lower Rolling shutter cmos sensor cooperation of price is always on lamp
Existing light filling, but the light filling brightness for being always on lamp is not so good as quick-fried sudden strain of a muscle light filling, image effect is not clear enough, if to reach identical bright
Degree, then be always on lamp due to power problems otherwise cost is very high, otherwise the service life is very short.And when flashing light light filling being used to carry out light filling,
There are the times of the quick-fried sudden strain of a muscle light filling of flashing light generally very short (for example, several hundred microseconds) can be made due to the Rolling shutter principle of CMOS
There is only some band and is exposed the situation to form light filling band in the image information of acquisition.Due to being captured in practical application
Position of the vehicle in image information is uncertain, it may appear that vehicle does not see driver or vehicle letter in light filling band
(for example, license plate, vehicle, body color etc.) unrecognized situation is ceased, the image information of candid photograph can not be as vehicle illegal
Evidence is used for subsequent law enforcement.
Summary of the invention
In order to overcome the above-mentioned deficiency of the prior art, the embodiment of the present invention is designed to provide a kind of acquisition light compensation method
And device, with improve in the prior art using inexpensive Rolling shutter to dim weather environment under vehicle illegal take pictures
When, it not can be carried out effective light filling and lead to not the technical issues of taking vehicle clear image.
Present pre-ferred embodiments provide a kind of Image Acquisition light compensation method, are applied to using on Rolling shutter shooting lane
The image capture device of vehicle, extending direction and light filling of the lane in the image information of described image acquisition equipment acquisition
Angle of the band between the direction in described image information is less than predetermined acute angle, which comprises
Obtain the image information in the lane；
Obtained location information of the vehicle lane in described image information；
The benefit the position of optic strip for adjusting described image acquisition equipment according to the positional information makes described in the light filling band covering
The region that vehicle lane is crossed where in described image information.
Another preferred embodiment of the present invention also provides a kind of Image Acquisition light compensating apparatus, is applied to shoot using Rolling shutter
The image capture device of vehicle on lane, extending direction of the lane in the image information of described image acquisition equipment acquisition
It is less than predetermined acute angle with angle of the light filling band between the direction in described image information, described device includes:
Image information acquisition module, for obtaining the image information in the lane；
Position information acquisition module, for obtaining location information of the vehicle lane in described image information；
Light filling band adjustment module, for adjusting the benefit the position of optic strip of described image acquisition equipment according to the positional information,
The light filling band is set to cover the region for crossing vehicle lane where in described image information.
In terms of existing technologies, the invention has the following advantages:
Image Acquisition light compensation method and device provided by the invention, by using inexpensive Rolling shutter imaging sensor,
Make angle of the lane in the extending direction in described image information and light filling band between the direction in described image information
Less than predetermined acute angle, the light filling band that described image acquires equipment is adjusted by crossing location information of the vehicle lane in image information,
So that light filling band covers the region for crossing vehicle lane where in described image information, even if position of the vehicle on lane is not
It determines, the vehicle travelled on lane can also clearly be shot.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of block diagram for image capture device that present pre-ferred embodiments provide.
Fig. 2 is the flow diagram for the Image Acquisition light compensation method that present pre-ferred embodiments provide.
Fig. 3 is the schematic diagram of the Rolling shutter scanning direction provided in the prior art and the lane position in acquisition image.
Fig. 4 is that the Rolling shutter scanning direction that provides of present pre-ferred embodiments and the lane position in the acquisition image show
It is intended to.
Fig. 5 is a kind of flow diagram of the sub-step of step S230 in Fig. 2.
Fig. 6 is the schematic diagram for the piece image information that present pre-ferred embodiments provide.
Fig. 7 is a kind of functional block diagram of Image Acquisition light compensating apparatus shown in Fig. 1.
Fig. 8 is another functional block diagram of Image Acquisition light compensating apparatus shown in Fig. 1.
Icon: 100- image capture device；200- Image Acquisition light compensating apparatus；110- memory；120- processor；130-
Network module；140- camera；150- flashing light；209- positional relationship adjusts module；210- image information acquisition module；220-
Position information acquisition module；230- light filling band adjustment module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Usually herein
The component of the embodiment of the present invention described and illustrated in place's attached drawing can be arranged and be designed with a variety of different configurations.Therefore,
The model of claimed invention is not intended to limit to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
It encloses, but is merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Referring to Fig. 1, Fig. 1 is the block diagram for the image capture device 100 that present pre-ferred embodiments provide.This hair
Image capture device 100 in bright embodiment can be the various electronic devices that illegal activities used for vehicles are taken pictures,
For example, being used in the bayonet camera in bayonet system.As shown in Figure 1, image capture device 100 includes: memory 110, processor
120, network module 130, camera 140 and flashing light 150.
The memory 110, processor 120, network module 130, camera 140 and flashing light 150 are straight between each other
It connects or is electrically connected indirectly, to realize the transmission or interaction of data.For example, these elements can pass through one or more between each other
Communication bus or signal wire, which are realized, to be electrically connected.Image Acquisition light compensating apparatus 200, described image are stored in memory 110
Acquisition light compensating apparatus 200 includes that at least one can be stored in the memory 110 in the form of software or firmware (firmware)
In software function module, the processor 120 is by the operation software program and module that are stored in memory 110, such as
Image Acquisition light compensating apparatus 200 in the embodiment of the present invention realizes this thereby executing various function application and data processing
Image processing method in inventive embodiments.
Wherein, the memory 110 may be, but not limited to, random access memory (Random Access
Memory, RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only
Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only
Memory, EEPROM) etc..Wherein, memory 110 is for storing program, the processor 120 after receiving and executing instruction,
Execute described program.Further, the software program in above-mentioned memory 110 and module may also include operating system.It can
Including the various component softwares for management system task (such as memory management, storage equipment control, power management etc.) and/or
Driving, and can mutually be communicated with various hardware or component software, to provide the running environment of other software component.
The processor 120 may be a kind of IC chip, the processing capacity with signal.Above-mentioned processor
120 can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc..Can also be digital signal processor (DSP)), specific integrated circuit (ASIC), scene
Programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware group
Part.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be with
It is that microprocessor or the processor 120 are also possible to any conventional processor etc..
Network module 130 is used for the communication link established between image capture device 100 and external communications terminals by network
It connects, realizes the transmitting-receiving operation of network signal and data.Above-mentioned network signal may include wireless signal or wire signal.
Camera 140 is used to acquire the video or image information of monitoring area, and the camera 140 includes image sensing
Device, described image sensor may be, but not limited to, charge coupled cell (Charge-coupled Device, CCD), the overall situation
The metal-oxide semiconductor (MOS) (Complementary Metal Oxide Semiconductor, CMOS) and roller shutter of exposure are fast
Door CMOS etc..In the present embodiment, the camera 140 realizes imaging using Rolling shutter CMOS.
Flashing light 150 is used to carry out quick-fried sudden strain of a muscle to camera 140 in dim weather environment (for example, night or thundery sky) to mend
Light, so that the camera 140 can take the image information that clarity is met the requirements in dim weather environment.
It is appreciated that structure shown in FIG. 1 is only to illustrate, image capture device 100 may also include more than shown in Fig. 1
Perhaps less component or with the configuration different from shown in Fig. 1.Each component shown in Fig. 1 can use hardware, software
Or combinations thereof realize.
Referring to Fig. 2, Fig. 2 is the flow diagram for the Image Acquisition light compensation method that present pre-ferred embodiments provide.Institute
The detailed process for stating method is as follows:
Step S210 obtains the image information in lane.
The lane is in the extending direction in described image information and light filling band between the direction in described image information
Angle be less than predetermined acute angle, the predetermined acute angle is the angle (such as 5 degree) of a very little, due to predetermined acute angle very little,
In embodiment, the Rolling shutter of extending direction of the lane in described image information and described image acquisition equipment 100
Scanning direction near normal.
The image information in lane is obtained by control imaging sensor, wherein described image sensor uses Rolling shutter
The mode exposed line by line obtains the image information in lane.
Referring to Fig. 3, Fig. 3 is the Rolling shutter scanning direction provided in the prior art and the lane position in acquisition image
A kind of schematic diagram.Wherein, left side shows extending direction (in figure dotted line arrow of the lane in described image information
Head direction) it is identical as the direction where column in image information.The Rolling shutter is scanned according to row, the Rolling shutter
Scanning direction is also identical as the direction where column in image information.That is Rolling shutter can be scanned from top to bottom in Fig. 3, be obtained
The formation shown in figure in image information light filling band identical with the direction of row on the left of Fig. 3, light filling band direction and right part of flg
The lane extending direction (dotted line direction in figure) shown is mutually perpendicular to, and light filling band can only cover a part of lane, since vehicle is in institute
The position for stating lane is uncertain, leads to that clear image when vehicle is located at non-light filling band cannot be acquired.
Referring to Fig. 4, Fig. 4 provides Rolling shutter scanning direction and lane in acquisition image for present pre-ferred embodiments
The schematic diagram of position.In the present embodiment, the direction of the light filling band is identical as the extending direction in the lane, is located at the vehicle
Vehicle on road can be clearly indicated in described image information.
In the present embodiment, it in order to which the direction for realizing the light filling band is identical as the extending direction in the lane, needs pair
The shooting direction of existing image capture device 100 is adjusted.Specifically, described image acquisition light compensation method can also include
The positional relationship for adjusting described image acquisition equipment 100 and the lane, makes extension of the lane in described image information
The angle of direction and light filling band between the direction in described image information is less than the step of predetermined acute angle.
Specifically, the adjustment of above-mentioned positional relationship can carry out in the following manner.
Described image acquisition equipment 100 is fixedly installed on a rotatable holder, controlled by software program described in
Holder is rotated the adjustment to realize above-mentioned positional relationship.It is, of course, understood that in other embodiment party of the present embodiment
The adjustment of above-mentioned positional relationship can also be carried out in formula by artificially installing fixed mode.
Referring to Fig. 2, step S220, location information of the vehicle lane in described image information was obtained.
In the present embodiment, by the image information in the lane got, parsing described image information obtains described
Cross the location information in vehicle lane.The location information include: it is described cross initial position of the vehicle lane in described image information and
It is described to cross vehicle lane width shared in described image information.
Specifically, image capture device 100 can be using the image partition method based on edge to the figure got
As information progress edge detection is then shown to be one when detecting has the place of mutation with gray level in image information
The edge in lane, generally, there are a plurality of such edges in an image information.Pass through the edge and roller shutter in above-mentioned lane
The scanning direction of shutter can determine the initial position in a lane, and the scanning direction along Rolling shutter is adjacent with the initial position
Edge be the lane final position (final position is the initial position for closing on another lane in the lane), by the vehicle
The initial position in road and final position can calculate width of the lane in image information.
Step S230 adjusts the benefit the position of optic strip of described image acquisition equipment 100 according to the positional information, makes the benefit
Light belt covers the region for crossing vehicle lane where in described image information.
Referring to Fig. 6, the step S230 may include following sub-step in the present embodiment:
Sub-step S231, according to the lane, the Rolling shutter is calculated in width shared in described image information
The time span of opening and the sum of the quick-fried sudden strain of a muscle time span of flashing light 150.
Sub-step S232, according to the lane, initial position is calculated the Rolling shutter and opens in described image information
At the time of opening.
Sub-step S233, the quick-fried sudden strain of a muscle time span of the time span and the flashing light 150 opened by the Rolling shutter
The sum of and the Rolling shutter open at the time of be calculated the flashing light 150 open at the time of.
Sub-step S234 adjusts Rolling shutter at the time of open, the time span, described that the Rolling shutter is opened
At the time of flashing light 150 is opened and the quick-fried sudden strain of a muscle time span of the flashing light 150 makes the light filling band covering vehicle lane of crossing in institute
Region where stating in image information.
In the present embodiment, can pass through at the time of the Rolling shutter is opened and at the time of the flashing light 150 is opened
Field programmable gate array (FPGA) is controlled, and can cover the vehicle lane of crossing in described image to adjust the light filling band
Region where in information.Due to predetermined acute angle (such as 5 degree of angles) very little, extension side of the lane in described image information
Specifically it can pass through above-mentioned parameter tune to the scanning direction near normal of the Rolling shutter with described image acquisition equipment 100
The width of light filling band is saved, and the position by translating the light filling band is so that the light filling band can cover the vehicle lane of crossing and exist
Region where in described image information.
In the present embodiment, when image capture device 100 is simultaneously monitored multiple lanes, described image acquisition is set
Standby 100 may include flashing light 150 identical with the quantity in the lane.Wherein, the flashing light 150 with the lane one by one
Corresponding, each flashing light 150 covers a lane.When there was vehicle in multiple lanes simultaneously, the sub-step S234 further include:
Flashing light 150 corresponding with the vehicle lane excessively is called to carry out quick-fried sudden strain of a muscle light filling according to the location information in the vehicle lane excessively.
Specifically, it when the multiple lane needs quick-fried sudden strain of a muscle light filling, according to the information for crossing vehicle lane of acquisition, is calculated
Each lane corresponds to the quick-fried sudden strain of a muscle start time of flashing light 150, calls flashing light 150 corresponding with each lane to carry out corresponding quick-fried
Dodge light filling.
It is briefly described below with reference to technical solution of the specific example to above-described embodiment.It should be noted that by
In predetermined acute angle (such as 5 degree of angles) very little, in the present embodiment, extending direction and institute of the lane in described image information
State the scanning direction near normal of the Rolling shutter of image capture device 100.
Referring to Fig. 6, assuming that the image information that described image acquisition equipment 100 is captured includes m row, n column, by calculating
Know that described image information includes k lane, each lane width shared in described image information is that w arranges (w < n).
It is a that the initial position for crossing vehicle lane in described image information, which is obtained by calculation,1Column.Then k-th of lane
Initial position in described image information is ak=[a1+ (k-1) * w] column, wherein k is the integer more than or equal to 1.
According to the characteristic of the Rolling shutter, the sweep time between every two row is Δ t, if described image acquires equipment
100 acquisition frame rate is x, and the time that a line to the end is scanned since the first row of described image information is equal to the scanning of a frame
Time e, then e=1/x；
Sweep time Δ t=e/m for the image information that image capture device 100 acquires, between every two row.
Assuming that the quick-fried sudden strain of a muscle time of the flashing light 150 be a preset fixed value Tm, if the Rolling shutter open when
Between length be Tc, in order to keep the width of light filling band just equal with peak width of the lane in image information, the volume
The quick-fried sudden strain of a muscle time span Tm and Rolling shutter of time span Tc, flashing light 150 that curtain shutter is opened scan the time in a lane
Length w* Δ t meets following relationship:
W* Δ t=Tc+Tm
The time span Tc=w* Δ t-Tm opened according to the available Rolling shutter of above-mentioned calculating formula.Certainly, it answers
When understanding, in the other embodiment of the present embodiment, above-mentioned variable can also meet formula w* Δ t < Tc+Tm, so
A light filling band wider than lane can be then obtained in image information, it is contemplated that the time span Tc mistake that Rolling shutter is opened
It is long, smear can be caused in image information.Preferably, the formula relationship of w* Δ t=Tc+Tm is selected to make light filling in the present embodiment
Width of the band in image information is equal with width of the lane in image information.
In order to enable the light filling band to cover the region for crossing vehicle lane place in described image information, also need
Position of the light filling band in image information is adjusted, specific adjustment mode is as follows.
Using k-th of lane as vehicle lane be described, according to it is above-mentioned be calculated the lane described image believe
Initial position in breath is ak, it is at the time of Rolling shutter unlatching can be calculated
Tst=ak*Δt
Next the quick-fried sudden strain of a muscle time Tm length of the time span Tc and the flashing light 150 that are opened by the Rolling shutter it
With and the Rolling shutter open at the time of Tst be calculated the flashing light 150 open at the time of Ts.
When described image acquisition equipment 100 detects that there was vehicle in k-th of lane, at the time of the flashing light 150 is opened
Ts is
Ts=Tc+Tst=w* Δ t-Tm+ [a1+(k-1)*w]*Δt
Tst, the Rolling shutter are opened at the time of unlatching according to the Rolling shutter that is calculated time span Tc,
The quick-fried sudden strain of a muscle time span Tm of Ts and the flashing light 150 believes light filling band in described image at the time of the flashing light 150 is opened
Position in breath is adjusted, so that light filling band covers the region for crossing vehicle lane where in described image information.
Fig. 7 is please referred to, it includes image information acquisition module 210, location information acquisition that described image, which acquires light compensating apparatus 200,
Module 220 and light filling band adjustment module 230.
Described image data obtaining module 210 is used to obtain the image information in lane.In the present embodiment, described image is believed
Breath obtains module 210 for executing step S210 described in Fig. 2, about specifically retouching for described image data obtaining module 210
State the description that can also refer to step S210.
The position information acquisition module 220 was for obtaining location information of the vehicle lane in described image information.?
In the present embodiment, the position information acquisition module 220 is believed for executing step S220 described in Fig. 2 about the position
The specific descriptions that breath obtains module 220 can also refer to the description of step S220.
The light filling is with adjustment module 230 for adjusting the benefit of described image acquisition equipment 100 according to the positional information
The position of optic strip makes the light filling band cover the region for crossing vehicle lane where in described image information.In the present embodiment,
The light filling is with adjustment module 230 for executing step S230 described in Fig. 2.
The light filling adjusts the light filling band of described image acquisition equipment 100 with adjustment module 230 according to the positional information
Position, the mode for making the light filling band cover the region of the vehicle lane excessively where in described image information include:
The time that the Rolling shutter is opened is calculated according to lane width shared in described image information
The sum of the quick-fried sudden strain of a muscle time span of length and flashing light 150；
At the time of according to the lane, Rolling shutter unlatching is calculated in initial position in described image information；
The sum of quick-fried sudden strain of a muscle time span of the time span and the flashing light 150 opened by the Rolling shutter and described
At the time of the flashing light 150 unlatching is calculated in Rolling shutter at the time of unlatching；
Adjust that Rolling shutter at the time of open, the time span that the Rolling shutter is opened, the flashing light 150 opens
At the time of opening and the quick-fried sudden strain of a muscle time span of the flashing light 150 makes the light filling band covering vehicle lane of crossing in described image information
The region at place.
In the present embodiment, when image capture device 100 is simultaneously monitored multiple lanes, described image acquisition is set
Standby 100 may include flashing light 150 identical with the quantity in the lane.Wherein, the flashing light 150 with the lane one by one
Corresponding, each flashing light 150 covers a lane.When there was vehicle in multiple lanes simultaneously, the light filling band adjustment module 230
At the time of unlatching according to the Rolling shutter, at the time of the time span that the Rolling shutter is opened, the flashing light 150 are opened
And the quick-fried sudden strain of a muscle time span of the flashing light 150 makes light filling band cover the area for crossing vehicle lane where in described image information
The mode in domain further include: according to the location information for crossing vehicle lane call with the corresponding flashing light 150 in vehicle lane excessively into
The quick-fried sudden strain of a muscle light filling of row.
Specifically, when the multiple lane needs quick-fried sudden strains of a muscle light filling, according to the mistake information in vehicle lane of acquisition and above-mentioned
Flashing light 150 quick-fried sudden strain of a muscle start time, the quick-fried sudden strain of a muscle start time that each lane corresponds to flashing light 150 is calculated, with call
Flashing light 150 corresponding with the lane carries out quick-fried sudden strain of a muscle light filling.
In the present embodiment, the light filling is used to execute step S230 described in Fig. 2 with adjustment module 230, about institute
Stating light filling can also refer to the description of step S230 with the specific descriptions of adjustment module 230.
Fig. 8 is please referred to, Fig. 8 is another functional block diagram of Image Acquisition light compensating apparatus 200 shown in Fig. 1.
Described image acquires light compensating apparatus 200 further include: positional relationship adjusts module 209.The positional relationship adjusts mould
Block 209 is used to adjust the positional relationship of described image acquisition equipment 100 and the lane, makes the lane in described image information
On angle between the direction in described image information of extending direction and light filling band be less than predetermined acute angle.
In conclusion Image Acquisition light compensation method provided by the invention and device, described image acquisition equipment 100 is being used
When inexpensive Rolling shutter imaging sensor, extending direction of the lane in described image information and light filling band are in the figure
As the angle between the direction in information is less than predetermined acute angle, passes through and cross location information of the vehicle lane in image information and adjust institute
The light filling band of image capture device 100 is stated, so that light filling band covers the area for crossing vehicle lane where in described image information
Domain can also clearly shoot the vehicle travelled on lane even if position of the vehicle on lane is uncertain.
In several embodiments provided by the embodiment of the present invention, it should be understood that disclosed device and method, it can also
To realize by another way.Device and method embodiment described above is only schematical, for example, in attached drawing
Flow chart and block diagram show that the systems of multiple embodiments according to the present invention, method and computer program product are able to achieve
Architecture, function and operation.In this regard, each box in flowchart or block diagram can represent module, a program
A part of section or code, a part of the module, section or code include that one or more is patrolled for realizing defined
Collect the executable instruction of function.It should also be noted that in some implementations as replacement, function marked in the box
It can occur in a different order than that indicated in the drawings.For example, two continuous boxes can actually be held substantially in parallel
Row, they can also be executed in the opposite order sometimes, and this depends on the function involved.It is also noted that block diagram and/or
The combination of each box in flow chart and the box in block diagram and or flow chart, can the function as defined in executing or dynamic
The dedicated hardware based system made is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, electronic equipment or network equipment etc.) execute all or part of step of each embodiment the method for the present invention
Suddenly.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), deposits at random
The various media that can store program code such as access to memory (RAM, Random Access Memory), magnetic or disk.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of Image Acquisition light compensation method shoots the image capture device of vehicle on lane applied to use Rolling shutter,
It is characterized in that, extending direction and light filling band of the lane in the image information of described image acquisition equipment acquisition are in the figure
As the angle between the direction in information is less than predetermined acute angle, which comprises
Obtain the image information in the lane；
Obtained location information of the vehicle lane in described image information；
The benefit the position of optic strip for adjusting described image acquisition equipment according to the positional information makes the light filling band covering is described to cross vehicle
Region of the lane where in described image information.
2. Image Acquisition light compensation method according to claim 1, which is characterized in that the vehicle lane that obtained is in the figure
As the location information in information includes:
It is described cross vehicle lane in described image information initial position and described to cross vehicle lane shared in described image information
Width.
3. Image Acquisition light compensation method according to claim 2, which is characterized in that described to adjust according to the positional information
Described image acquires the benefit the position of optic strip of equipment, makes the light filling band covering vehicle lane of crossing where in described image information
Region the step of include:
The time span that the Rolling shutter is opened is calculated according to lane width shared in described image information
The sum of with the quick-fried sudden strain of a muscle time span of flashing light；
At the time of according to the lane, Rolling shutter unlatching is calculated in initial position in described image information；
The sum of quick-fried sudden strain of a muscle time span of the time span and the flashing light opened by the Rolling shutter and the Rolling shutter
At the time of flashing light unlatching is calculated at the time of unlatching；
Adjust the Rolling shutter open at the time of, the Rolling shutter open time span, the flashing light open when
It carves and the quick-fried sudden strain of a muscle time span of the flashing light makes light filling band cover the area for crossing vehicle lane where in described image information
Domain.
4. Image Acquisition light compensation method according to claim 3, which is characterized in that described image acquisition equipment include with
The identical flashing light of the quantity in lane, the flashing light and the lane correspond, and each flashing light covers a lane,
The benefit the position of optic strip for adjusting described image acquisition equipment according to the positional information makes the light filling band covering is described to cross vehicle
Lane in described image information where region the step of in:
It is called according to the location information for crossing vehicle lane and crosses the quick-fried sudden strain of a muscle light filling of the corresponding flashing light progress in vehicle lane with described.
5. Image Acquisition light compensation method according to claim 1, which is characterized in that the method also includes:
The positional relationship for adjusting described image acquisition equipment and the lane makes the lane in described image acquisition equipment acquisition
Image information on angle between the direction in described image information of extending direction and light filling band be less than predetermined acute angle.
6. a kind of Image Acquisition light compensating apparatus shoots the image capture device of vehicle on lane applied to use Rolling shutter,
It is characterized in that, extending direction and light filling band of the lane in the image information of described image acquisition equipment acquisition are in the figure
As the angle between the direction in information is less than predetermined acute angle, described device includes:
Image information acquisition module, for obtaining the image information in the lane；
Position information acquisition module, for obtaining location information of the vehicle lane in described image information；
Light filling band adjustment module makes institute for adjusting the benefit the position of optic strip of described image acquisition equipment according to the positional information
It states light filling band and covers the region for crossing vehicle lane where in described image information.
7. device according to claim 6, which is characterized in that the location information includes:
It is described cross vehicle lane in described image information initial position and described to cross vehicle lane shared in described image information
Width.
8. device according to claim 7, which is characterized in that the light filling band adjustment module is adjusted according to the positional information
The benefit the position of optic strip for saving described image acquisition equipment makes the light filling band covering is described to cross vehicle lane institute in described image information
The mode in region include:
The time span that the Rolling shutter is opened is calculated according to lane width shared in described image information
The sum of with the quick-fried sudden strain of a muscle time span of flashing light；
At the time of according to the lane, Rolling shutter unlatching is calculated in initial position in described image information；
The sum of quick-fried sudden strain of a muscle time span of the time span and the flashing light opened by the Rolling shutter and the Rolling shutter
At the time of flashing light unlatching is calculated at the time of unlatching；
Adjust the Rolling shutter open at the time of, the Rolling shutter open time span, the flashing light open when
It carves and the quick-fried sudden strain of a muscle time span of the flashing light makes light filling band cover the area for crossing vehicle lane where in described image information
Domain.
9. device according to claim 8, which is characterized in that described image acquisition equipment includes the quantity with shooting lane
Identical flashing light, the flashing light and the shooting lane correspond, and each flashing light covers a lane, the basis
The Rolling shutter open at the time of, the Rolling shutter open time span, the flashing light open at the time of and it is described
The quick-fried sudden strain of a muscle time span of flashing light makes light filling band cover the region step packet for crossing vehicle lane where in described image information
It includes:
Flashing light corresponding with the lane is called to carry out quick-fried sudden strain of a muscle light filling according to the information for crossing vehicle lane.
10. device according to claim 6, which is characterized in that described device further include:
Positional relationship adjusts module, for adjusting the positional relationship of described image acquisition equipment and the lane, makes the lane
Described image acquisition equipment acquisition image information on extending direction and direction of the light filling band in described image information it
Between angle be less than predetermined acute angle.
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