CN106157388A - Local coding driving recording method and system - Google Patents
Local coding driving recording method and system Download PDFInfo
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- CN106157388A CN106157388A CN201610527356.XA CN201610527356A CN106157388A CN 106157388 A CN106157388 A CN 106157388A CN 201610527356 A CN201610527356 A CN 201610527356A CN 106157388 A CN106157388 A CN 106157388A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The present invention provides a kind of local coding driving recording method, is acquired road map picture and stores as original image；Gather brake signal and the throttle signal for faster of driver；When brake signal or throttle signal for faster are effective, face identification unit is read original image from original image buffer unit, identify the facial image in original image, and extract the coordinate information of the image block comprising facial image；Normal macro block division information by coordinate information and image, it is judged that comprise face information in which macro block, and carry out Video coding after the macro block comprising face information being carried out be reclassified as minimum macro block；When brake signal and throttle signal for faster are invalid, the directly macro block according to original image are divided and carries out Video coding.The present invention is when brake occurs in driving and throttle accelerates, and the information targetedly that carries out is strengthened, and the information content to improve material time section is more detailed, and the memory space reducing inessential driving conditions record is saved.
Description
Technical field
The present invention relates to a kind of vehicle-running recording system, particularly to a kind of driving recording system that can carry out local coding
System.
Background technology
As city automobile quantity gets more and more, traffic accident responsibility identification and intelligence auxiliary are driven and are always automotive electronics
The technical barrier of industry.Current drive recorder can facilitate accident responsibility identification and driving video recording to a certain extent, but
It is shortcoming or it is clear that in whole driving conditions, in fact not all stroke in time is all important,
Actually useful running information is unobstructed is a period of time occurring situation in whole driving conditions, and current drive recorder
Can only simply record whole stroke, information targetedly can not be done according to the scene of driving and strengthen, simultaneously also will be big
Amount waste of storage space is in unessential driving conditions.
Content of the invention
The technical problem to be solved in the present invention, is to provide a kind of local coding driving recording method and system,
When driving occurs that brake and throttle accelerate, the information targetedly that carries out is strengthened, and the information content to improve material time section is more detailed,
The memory space reducing inessential driving conditions record is saved.
The inventive method is achieved in that a kind of local coding driving recording method, comprises the steps:
Road map picture is acquired and stores as original image；
Gather brake signal and the throttle signal for faster of driver；
When brake signal or throttle signal for faster are effective, started working by face identification unit, from original image caching
Unit reads original image, identifies the facial image in original image, and extracts four of the image block comprising facial image
Coordinate information in whole original image for the angle；Normal macro block division information by coordinate information and image, it is judged which is grand
Block comprises face information, and carries out Video coding after the macro block comprising face information being carried out be reclassified as minimum macro block；
When brake signal and throttle signal for faster are invalid, the directly macro block according to original image are divided and carries out video volume
Code.
Present system is achieved in that a kind of local coding vehicle-running recording system, including camera unit, former
Beginning image buffer storage unit, brake signal collecting unit, throttle signal for faster collecting unit, logic or circuit unit, recognition of face
Unit, coded macroblocks division unit, strengthening coded macroblocks identifying unit, the strengthening subdivided unit of coded macroblocks, minimum macro block are joined
Put memory cell, path selection unit and video encoding unit；
Described camera unit connects original image buffer unit；Described original image buffer unit connects face respectively to be known
Other unit and coded macroblocks division unit；Described brake signal collecting unit and throttle signal for faster collecting unit are patrolled by described
Collect or circuit unit connects described face identification unit；Described face identification unit and coded macroblocks division unit are all connected with described
Strengthening coded macroblocks identifying unit；Described strengthening coded macroblocks identifying unit and described minimum macro block configuration memory cell connect institute
State the strengthening subdivided unit of coded macroblocks；The described strengthening subdivided unit of coded macroblocks, coded macroblocks division unit and described
Logic or circuit unit all connect described video encoding unit by described path selection unit.
Further, road map picture is persistently acquired and is sent to original continuously by collection image by described camera unit
Image buffer storage unit stores；
Described brake signal collecting unit gathers the brake signal of driver and is converted to Digital Circuit Signal and is sent to logic
Or circuit unit；Described throttle signal for faster collecting unit gathers throttle signal for faster and is converted to Digital Circuit Signal and is sent to patrol
Collect or circuit unit；Described logic or circuit unit are by the output of brake signal collecting unit and throttle signal for faster collecting unit
Signal carries out logic or computing, and operation result exports face identification unit and path selection unit；
Described face identification unit receives logic or the output of circuit unit decides whether from original image buffer unit
Carrying out image reading, when logic or circuit unit are output as effective, face identification unit is started working, and delays from original image
Memory cell reads original image, identifies the facial image in original image, and four of the image block comprising facial image
Coordinate information in whole original image for the angle is sent to strengthen coded macroblocks identifying unit；
The face of described strengthening coded macroblocks identifying unit reception face identification unit output coordinate information in the picture
With the normal macro block division information of coded macroblocks division unit output, then judge which macro block comprises face information, and will
It is sent to the described strengthening subdivided unit of coded macroblocks after the macro block mark comprising face information；
The described strengthening subdivided unit of coded macroblocks carries out being reclassified as after receiving the macro block comprising face information
Little macro block, wherein the size of minimum macro block obtains from minimum macro block configuration memory cell, and this minimum repartitioned is grand
Block message is sent to path selection unit；
The minimum macro block information that described path selection unit is repartitioned described in selection when having brake or throttle action
It is sent to video encoding unit, allow video encoder carry out Video coding to again strengthening the macro block dividing mode after macro block divides；
Otherwise just select the macro block division information of coded macroblocks division unit to be sent to video encoding unit, allow the direct root of video encoding unit
Divide according to original macro block and carry out Video coding.
Further, described adopt when the effectively output of brake signal collecting unit and described throttle signal for faster collecting unit
Representing effect with high level, invalid output then uses low level to represent.
Present invention have the advantage that
1. the present invention is when abnormal conditions occurs in driving, when such as occurring that brake and throttle accelerate, believes targetedly
Breath is strengthened, and the information content to improve material time section is more detailed；
2. the present invention is when abnormal conditions occurs in driving, such as occur brake and throttle accelerate when, can automatically identify and with
Face in track video is simultaneously strengthened the details of image macro and is divided and carry out record with the more details information improving key position；
3. the present invention uses the Video coding of ordinary sharpness to reduce inessential driving conditions under normal transport condition
The memory space of record is saved.
Brief description
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structured flowchart of vehicle-running recording system of the present invention.
Detailed description of the invention
The local coding driving recording method of the present invention, comprises the steps:
Road map picture is acquired and stores as original image；
Gather brake signal and the throttle signal for faster of driver；
When brake signal or throttle signal for faster are effective, started working by face identification unit, from original image caching
Unit reads original image, identifies the facial image in original image, and extracts four of the image block comprising facial image
Coordinate information in whole original image for the angle；Normal macro block division information by coordinate information and image, it is judged which is grand
Block comprises face information, and carries out Video coding after the macro block comprising face information being carried out be reclassified as minimum macro block；
When brake signal and throttle signal for faster are invalid, the directly macro block according to original image are divided and carries out video volume
Code.
As it is shown in figure 1, according to said method of the present invention, the present invention provides a local coding vehicle-running recording system, its
Including camera unit the 101st, original image buffer unit the 102nd, brake signal collecting unit the 103rd, throttle signal for faster gathers single
The 107th, unit's the 104th, logic or circuit unit the 105th, face identification unit the 106th, coded macroblocks division unit is strengthened coded macroblocks and is judged
Unit the 108th, strengthen the subdivided unit of coded macroblocks the 109th, minimum macro block configuration memory cell the 110th, path selection unit 111 and
Video encoding unit 112；
Described camera unit 101 connects original image buffer unit 102；Described original image buffer unit 102 is respectively
Connect face identification unit 106 and coded macroblocks division unit 107；Described brake signal collecting unit 103 and throttle accelerate letter
Number collecting unit 104 connects described face identification unit 106 by described logic or circuit unit 105；Described recognition of face list
Unit 106 and coded macroblocks division unit 107 are all connected with described strengthening coded macroblocks identifying unit 108；Described strengthening coded macroblocks
Identifying unit 108 and described minimum macro block configuration memory cell 110 connect the described strengthening subdivided unit of coded macroblocks 109；Institute
State the strengthening subdivided unit of coded macroblocks the 109th, coded macroblocks division unit 107 and described logic or circuit unit 105 is all logical
Cross described path selection unit 11 and connect described video encoding unit 112.
Wherein,
Described camera unit 101 is for being acquired and collection image being sent to original image continuously delaying to road map picture
Memory cell 102 stores；
The original image letter that described original image buffer unit 102 is come in for receiving and storing camera unit collection
Breath；
Described brake signal collecting unit 103 is used for gathering the brake signal of driver and being converted to Digital Circuit Signal sending
Toward logic or circuit unit 105；Then brake the collecting unit effective high level of output if there is brake behavior, otherwise export low
Level represents invalid；
Described throttle signal for faster collecting unit 104 is used for gathering throttle signal for faster and being converted to Digital Circuit Signal sending
Toward logic or circuit unit 105；Accelerate the effective high level of collecting unit output if there is acceleration behavior then throttle of stepping on the gas,
Otherwise output low level represents invalid；
Described logic or circuit unit 105 are responsible for the data signal that data signal and the throttle of brake accelerate is carried out or patrolled
Collect operation, when in brake signal collecting unit 103 and throttle signal for faster collecting unit 104, any one unit has been output as
During effect, the output of logic or circuit unit 105 is also effective, and this useful signal can be sent to path selection unit 111 and face is known
Other unit 106；
Described face identification unit 106 is responsible for receiving logic or the output of circuit unit 105 decides whether from original graph
As buffer unit 102 carries out image reading, when logic or circuit unit 105 are output as invalid, face identification unit 106 is in
Off position, also will not carry out image reading from original image buffer unit 102, when logic or circuit unit are output as effectively
When, face identification unit is started working state, and is carried out image reading from original image buffer unit；
Described strengthening coded macroblocks identifying unit 108 is responsible for the face of reception face identification unit 106 output in the picture
Coordinate information and coded macroblocks division unit output normal macro block division information, then judge which macro block comprises face
Any part of image block, if comprising face information in any one macro block, then is labeled as this macro block to comprise face information
Macro block, and be sent to again strengthen the subdivided unit of coded macroblocks finishing all macro block informations of mark；
It is original grand that the strengthening subdivided unit of coded macroblocks 109 responsible reception strengthening coded macroblocks identifying unit 108 is sent here
Block division information and the macro block label information whether comprising face, if if macro block comprises face information, then by this macro block weight
New division；Division methods is: all original macro comprising face information, all can be reclassified as minimum macro block, and by new
Macro block division information is sent to path selection unit, and the size of minimum macro block obtains from minimum macro block configuration memory cell 110, than
Such as the original macro of a 32x32, owing to comprising face information, then minimum macro block is configured to 8x8, then will be repartitioned
It is the new macro block dividing mode of 16 8x8；
It is in said system, and the detailed process of local of the present invention coding vehicle-running recording system is:
After circuit is started working, road map picture is persistently acquired and will gather image connecting by described camera unit 101
It continuous is sent to original image buffer unit 102 and stores；
Described brake signal collecting unit 103 gathers the brake signal of driver and is converted to Digital Circuit Signal and is sent to patrol
Collect or circuit unit 105；Described throttle signal for faster collecting unit 104 gathers throttle signal for faster and is converted to digital circuit letter
It number is sent to logic or circuit unit 105；Brake signal collecting unit 103 and throttle are accelerated by described logic or circuit unit 105
The output signal of signal gathering unit 104 carries out logic or computing, and operation result exports face identification unit 106 and leads to
Road selects unit 111；
Described face identification unit 106 receives logic or the output of circuit unit 105 decides whether to delay from original image
Memory cell 102 carries out image reading, and when logic or circuit unit 105 are output as effective, face identification unit 106 starts work
Make, and read original image from original image buffer unit 102, identify the facial image in original image, and handle comprises people
Coordinate information in whole original image for four angles of the image block of face image is sent to strengthen coded macroblocks identifying unit 108；
Described strengthening coded macroblocks identifying unit 108 receives the face seat in the picture of face identification unit 106 output
Mark information and the normal macro block division information of coded macroblocks division unit 107 output, then judge to comprise face in which macro block
It is sent to the described strengthening subdivided unit of coded macroblocks 109 after information, and the macro block mark that face information will be comprised；
The described strengthening subdivided unit of coded macroblocks 109 is reclassified as after receiving the macro block comprising face information
Minimum macro block, wherein the size of minimum macro block obtains from minimum macro block configuration memory cell 110, and this is repartitioned
Little macro block information is sent to path selection unit 111；
The minimum macro block letter that described path selection unit 111 is repartitioned described in selection when having brake or throttle action
Breath is sent to video encoding unit, allows video encoder 112 carry out video to again strengthening the macro block dividing mode after macro block divides
Coding；Otherwise just select the macro block division information of coded macroblocks division unit 107 to be sent to video encoding unit 112, allow video compile
The direct division according to original macro block of code unit 112 carries out Video coding.
Described when the effectively output employing of brake signal collecting unit 103 and described throttle signal for faster collecting unit 104
High level represents effect, and invalid output then uses low level to represent.
Although the foregoing describing the detailed description of the invention of the present invention, but those familiar with the art should managing
Solving, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, are familiar with this
The technical staff in field, in the equivalent modification made according to the spirit of the present invention and change, should be covered the present invention's
In scope of the claimed protection.
Claims (4)
1. a local coding driving recording method, it is characterised in that:
Road map picture is acquired and stores as original image；
Gather brake signal and the throttle signal for faster of driver；
When brake signal or throttle signal for faster are effective, face identification unit is read original graph from original image buffer unit
Picture, identifies the facial image in original image, and extracts seat in whole original image for the image block comprising facial image
Mark information；Normal macro block division information by coordinate information and image, it is judged that comprise face information in which macro block, and will bag
Macro block containing face information carries out Video coding after carrying out being reclassified as minimum macro block；
When brake signal and throttle signal for faster are invalid, the directly macro block according to original image are divided and carries out Video coding.
2. a local coding vehicle-running recording system, it is characterised in that: include that camera unit, original image caching are single
Unit, brake signal collecting unit, throttle signal for faster collecting unit, logic or circuit unit, face identification unit, coded macroblocks
Division unit, strengthening coded macroblocks identifying unit, the strengthening subdivided unit of coded macroblocks, minimum macro block configuration memory cell, logical
Road selects unit and video encoding unit；
Described camera unit connects original image buffer unit；Described original image buffer unit connects recognition of face list respectively
Unit and coded macroblocks division unit；Described brake signal collecting unit and throttle signal for faster collecting unit by described logic or
Circuit unit connects described face identification unit；Described face identification unit and coded macroblocks division unit are all connected with described strengthening
Coded macroblocks identifying unit；Described strengthening coded macroblocks identifying unit and described minimum macro block configuration memory cell connection are described by force
Change the subdivided unit of coded macroblocks；The described strengthening subdivided unit of coded macroblocks, coded macroblocks division unit and described logic
Or circuit unit all connects described video encoding unit by described path selection unit.
3. local according to claim 2 coding vehicle-running recording system, it is characterised in that:
Road map picture is persistently acquired and collection image is sent to original image buffer unit continuously by described camera unit
Store；
Described brake signal collecting unit gathers the brake signal of driver and is converted to Digital Circuit Signal and is sent to logic or electricity
Road unit；Described throttle signal for faster collecting unit gather throttle signal for faster and be converted to Digital Circuit Signal be sent to logic or
Circuit unit；Described logic or circuit unit are by the output signal of brake signal collecting unit and throttle signal for faster collecting unit
Carry out logic or computing, and operation result is exported face identification unit and path selection unit；
Described face identification unit receives logic or the output of circuit unit decides whether to carry out from original image buffer unit
Image reading, when logic or circuit unit are output as effective, face identification unit is started working, and single from original image caching
Unit reads original image, identifies the facial image in original image, and four angles of the image block comprising facial image are existed
Coordinate information in whole original image is sent to strengthen coded macroblocks identifying unit；
Described strengthening coded macroblocks identifying unit receives face coordinate information in the picture and the volume of face identification unit output
The normal macro block division information of decoding macroblock division unit output, then judges to comprise in which macro block face information, and will comprise
It is sent to the described strengthening subdivided unit of coded macroblocks after the macro block mark of face information；
It is grand that the described strengthening subdivided unit of coded macroblocks carries out being reclassified as minimum after receiving the macro block comprising face information
Block, wherein the size of minimum macro block obtains from minimum macro block configuration memory cell, and this minimum macro block letter repartitioned
Breath is sent to path selection unit；
The minimum macro block information that described path selection unit is repartitioned described in selection when having brake or throttle action is sent to
Video encoding unit, allows video encoder carry out Video coding to again strengthening the macro block dividing mode after macro block divides；Otherwise
Just select the macro block division information of coded macroblocks division unit to be sent to video encoding unit, allow video encoding unit directly according to former
The macro block beginning divides and carries out Video coding.
4. local according to claim 3 coding vehicle-running recording system, it is characterised in that: described adopt when brake signal
The effectively output of collection unit and described throttle signal for faster collecting unit uses high level to represent effect, and invalid output then uses low electricity
Flat expression.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610527356.XA CN106157388B (en) | 2016-07-06 | 2016-07-06 | The driving recording method of local coding and system |
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| CN201610527356.XA CN106157388B (en) | 2016-07-06 | 2016-07-06 | The driving recording method of local coding and system |
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| CN106157388B CN106157388B (en) | 2018-08-14 |
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| CN106157388B (en) | 2018-08-14 |
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Address after: 350000 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Patentee after: Ruixin Microelectronics Co., Ltd Address before: 350000 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Patentee before: Fuzhou Rockchips Electronics Co.,Ltd. |