CN206042211U - Device and license plate recognition that handle is carried out camera video flowing - Google Patents
Device and license plate recognition that handle is carried out camera video flowing Download PDFInfo
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- CN206042211U CN206042211U CN201620809360.0U CN201620809360U CN206042211U CN 206042211 U CN206042211 U CN 206042211U CN 201620809360 U CN201620809360 U CN 201620809360U CN 206042211 U CN206042211 U CN 206042211U
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Abstract
The utility model discloses a carry out the device handled to the camera video flowing, acquire the video flowing that the camera sent through acquireing the module, tear the drape piece open and obtain the module and link to each other, adopt RTP bale breaking technique, carry out the bale breaking to the video flowing and handle, obtain the H264 video flowing, hardware decoder module carries out hardware to the H264 video flowing and decodes, acquires the picture after decoding, picture after the format conversion pair of module is decoded carries out image format conversion, generates the original picture of presetting the form. The utility model provides a carry out the device handled to the camera video flowing, use hard decoding units to decode firmly to the H264 video flowing, showing the consumption that has reduced CPU for CPU can decode to 4 tunnel 720p high definition resolution ratio camera video flowing nearly in real time, and make CPU can also have the procedure of other high resource requirements of sufficient resource operation. Furthermore, the utility model also provides a license plate recognition who has above -mentioned advantage.
Description
Technical field
This utility model is related to video decoding techniques field, more particularly to a kind of that camera video stream is processed
Device and Vehicle License Plate Recognition System.
Background technology
Under existing Embedded A rm Linux environment, typically all the H264 video flowings of video camera are carried out using software soft
Decoding.Although programming and realization are simple, to H264 video flowings, need to expend considerable cpu resource using soft decoding, it is impossible to
Real-time decoding is carried out to the high definition video steaming of two-way and the above, and video flowing resolution is higher, the cpu resource of occupancy is more, very
To making CPU provide resource again to other high resource requirement programs, the such as program such as Recognition Algorithm of License Plate, so that other journeys
Sequence process time is long, it is impossible to reach product design index.
Utility model content
The purpose of this utility model is to provide a kind of device processed to camera video stream and Car license recognition system
System, it is therefore intended that it is more that the existing use software of solution carries out soft decoding consuming cpu resource to the H264 video flowings of video camera, it is impossible to
The problem of real-time decoding is carried out to the high definition video steaming of two-way and the above.
For solving above-mentioned technical problem, this utility model provides a kind of device processed to camera video stream, bag
Include：
Obtain the acquisition module of the video flowing that video camera sends；
It is connected with the acquisition module, is unpacked technology using RTP, process of unpacking is carried out to the video flowing, H264 is obtained
The module of unpacking of video flowing；
It is connected with the module of unpacking, carries out hardware decoding to the H264 video flowings, obtains the hard of decoded picture
Part decoder module；
Image format conversion is carried out to the decoded picture, generates the form modulus of conversion of the original image of preset format
Block.
Alternatively, the hardware decoder module solves coding unit firmly for the MFC of 4412 chip internal of Samsung.
Alternatively, the decoded picture format is NV12T forms, and the preset format of the original image is YUV420
Form.
Alternatively, it is described that the device processed by camera video stream is applied in Embedded A rm Linux environment.
This utility model additionally provides a kind of Vehicle License Plate Recognition System, including video camera, image recognizer and any of the above-described
Plant the device processed to camera video stream；
Wherein, the video camera is used for Video stream information of the collection comprising vehicle license plate；
The device processed to camera video stream is generated default for processing to the Video stream information
The original image of form；
Described image evaluator carries out image recognition for the original image to the preset format, obtains the car in image
Board information.
Alternatively, the video camera is multichannel 720P high definition resolution camera.
The device processed to camera video stream provided by the utility model, obtains video camera by acquisition module
The video flowing of transmission；Module of unpacking is connected with acquisition module, is unpacked technology using RTP, is carried out process of unpacking to video flowing, obtain
H264 video flowings；Hardware decoder module carries out hardware decoding to H264 video flowings, obtains decoded picture；Format converting module
Image format conversion is carried out to decoded picture, generates the original image of preset format.It is provided by the utility model to taking the photograph
The device processed by camera video flowing, carries out hard decoder using hard decoder unit to H264 video flowings, significantly reduces CPU's
Power consumption so that CPU can carry out real-time decoding to the 720p high definition resolution camera video flowings on up to 4 tunnels, and cause CPU
There can also be enough resources to run the program of other high resource requirements.Additionally, this utility model additionally provides one kind with upper
State the Vehicle License Plate Recognition System of advantage.
Description of the drawings
For clearer explanation this utility model embodiment or the technical scheme of prior art, below will to embodiment or
Needed for description of the prior art, accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only
Some embodiments of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is a kind of specific embodiment of the device processed to camera video stream provided by the utility model
Structured flowchart；
Fig. 2 is the workflow diagram of the device processed to camera video stream provided by the utility model；
Fig. 3 is another kind of specific embodiment party of the device processed to camera video stream provided by the utility model
The flow chart of formula.
Specific embodiment
In order that those skilled in the art more fully understand this utility model scheme, below in conjunction with the accompanying drawings and it is embodied as
The utility model is described in further detail for mode.Obviously, described embodiment is only this utility model part
Embodiment, rather than the embodiment of whole.Based on the embodiment in this utility model, those of ordinary skill in the art are not doing
The every other embodiment obtained under the premise of going out creative work, belongs to the scope of this utility model protection.
A kind of knot of the specific embodiment of the device processed by camera video stream provided by the utility model
Structure block diagram is as shown in figure 1, the device includes：
Obtain the acquisition module 100 of the video flowing that video camera sends；
It is connected with the acquisition module 100, is unpacked technology using RTP, process of unpacking is carried out to the video flowing, is obtained
The module 200 of unpacking of H264 video flowings；
It is connected with the module 200 of unpacking, carries out hardware decoding to the H264 video flowings, obtains decoded picture
Hardware decoder module 300；
Image format conversion is carried out to the decoded picture, generates the form modulus of conversion of the original image of preset format
Block 400.
The device processed to camera video stream provided by the utility model, obtains video camera by acquisition module
The video flowing of transmission；Module of unpacking is connected with acquisition module, is unpacked technology using RTP, is carried out process of unpacking to video flowing, obtain
H264 video flowings；Hardware decoder module carries out hardware decoding to H264 video flowings, obtains decoded picture；Format converting module
Image format conversion is carried out to decoded picture, generates the original image of preset format.It is provided by the utility model to taking the photograph
The device processed by camera video flowing, carries out hard decoder using hard decoder unit to H264 video flowings, significantly reduces CPU's
Power consumption so that CPU can carry out real-time decoding to the 720p high definition resolution camera video flowings on up to 4 tunnels, and cause CPU
There can also be enough resources to run the program of other high resource requirements.
It is pointed out that above-mentioned hardware decoder module is 4412 chip internal of Samsung in this utility model embodiment
MFC solves coding unit firmly.
Below the specific implementation process of the present embodiment is further elaborated on, as Fig. 2 this utility model is provided
The device processed by camera video stream workflow diagram shown in, which specifically includes：
Step S101：Obtain the video flowing that video camera sends；
Step S102：Unpacked technology using RTP, process of unpacking is carried out to the video flowing, H264 video flowings are obtained；
Step S103：Hard coded unit is called, hardware decoding is carried out to the H264 video flowings, decoded figure is obtained
Piece；
Step S104：Image format conversion is carried out to the decoded picture, generates the original image of preset format.
Wherein, above-mentioned decoded picture format can be specially NV12T forms, and the preset format of original image can have
Body is YUV420 forms.
Such as another kind of specific embodiment party of Fig. 3 devices processed to camera video stream provided by the utility model
Shown in the flow chart of formula, the process includes：
Step S201：Camera video stream is controlled using RTSP agreements, control video camera is to 4412 chip of Samsung
Send video flowing；
Step S202：Unpacked program using RTP, process of unpacking is carried out to camera video stream, H264 video flowings are obtained；
Step S203：Call MFC in 4412 chip of Samsung to solve firmly coding unit, H264 video flowings are decoded, is obtained
The original image one by one of NV12T forms；
Step S204：NV12T format pictures are converted into the original graph of YUV420 forms as format conversion algorithms by calling figure
Piece.
It is provided by the utility model that the device processed by camera video stream can further include：
Sending module, for YUV420 format pictures are passed to picture recognition module, to carry out image recognition.
The device processed to camera video stream provided by the utility model, is applied to Embedded A rm Linux
Under environment, by RTP unpack with 4421 chips by video conversion be picture, then recycle picture format transfer algorithm, will figure
Piece is converted to the discernible picture format of picture recognition module.
In this utility model embodiment, decoding process is video camera to be regarded using 4412 inside MFC hard decoder units of Samsung
Frequency stream carries out real-time hard decoder, solve using traditional soft decode it is too high to cpu resource occupancy, cannot be in Arm Linux rings
The problem of real-time decoding cannot be carried out under border to multi-path high-definition video flowing.
Additionally, this utility model additionally provides a kind of Vehicle License Plate Recognition System, including video camera, image recognizer and above-mentioned
Any one device processed by camera video stream；
Wherein, the video camera is used for Video stream information of the collection comprising vehicle license plate；
The device processed to camera video stream is generated default for processing to the Video stream information
The original image of form；
Described image evaluator carries out image recognition for the original image to the preset format, obtains the car in image
Board information.
Specifically, video camera can be multichannel 720P high definition resolution camera.
The device processed to camera video stream provided by the utility model, by obtaining regarding for video camera transmission
Frequency flows；Unpacked technology using RTP, process of unpacking is carried out to video flowing, H264 video flowings are obtained；Hard coded unit is called, it is right
H264 video flowings carry out hardware decoding, obtain decoded picture；Image format conversion is carried out to decoded picture, is generated pre-
If the original image of form.The device processed to camera video stream provided by the utility model, using hard decoder list
Unit carries out hard decoder to H264 video flowings, significantly reduces the power consumption of CPU so that CPU can be to the high sortings of the 720p on up to 4 tunnels
Resolution camera video stream carries out real-time decoding, and causes CPU have enough resources to run other high resource requirements
Program.This utility model is can operate with embedded platform and network digital high-definition camera environment, to realize multi-channel video
Image procossing.
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For dress disclosed in embodiment
For putting, as which corresponds to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Illustrate.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can with electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, generally describes composition and the step of each example in the above description according to function.These
Function actually with hardware or software mode performing, the application-specific and design constraint depending on technical scheme.Specialty
Technical staff can use different methods to realize described function to each specific application, but this realization should
Think beyond scope of the present utility model.
The step of method described with reference to the embodiments described herein or algorithm, directly can be held with hardware, processor
Capable software module, or the combination of the two is implementing.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to the device processed to camera video stream provided by the utility model and Vehicle License Plate Recognition System
It is described in detail.Specific case used herein is set forth to principle of the present utility model and embodiment, with
The explanation of upper embodiment is only intended to help and understands method of the present utility model and its core concept.It should be pointed out that for this skill
For the those of ordinary skill in art field, on the premise of without departing from this utility model principle, this utility model can also be entered
The some improvement of row and modification, these improve and modification is also fallen in this utility model scope of the claims.
Claims (3)
1. a kind of device processed by camera video stream, it is characterised in that include：
Obtain the acquisition module of the video flowing that video camera sends；
It is connected with the acquisition module, is unpacked technology using RTP, process of unpacking is carried out to the video flowing, H264 videos are obtained
The module of unpacking of stream；
It is connected with the module of unpacking, carries out hardware decoding to the H264 video flowings, obtains the hardware solution of decoded picture
Code module；
Image format conversion is carried out to the decoded picture, generates the format converting module of the original image of preset format；
The hardware decoder module solves coding unit firmly for the MFC of 4412 chip internal of Samsung.
2. a kind of Vehicle License Plate Recognition System, it is characterised in that including video camera, image recognizer and as claimed in claim 1
The device processed by camera video stream；
Wherein, the video camera is used for Video stream information of the collection comprising vehicle license plate；
The device processed to camera video stream generates preset format for processing to the Video stream information
Original image；
Described image evaluator carries out image recognition for the original image to the preset format, obtains the car plate letter in image
Breath.
3. Vehicle License Plate Recognition System as claimed in claim 2, it is characterised in that the video camera is multichannel 720P high definition resolution
Video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620809360.0U CN206042211U (en) | 2016-07-28 | 2016-07-28 | Device and license plate recognition that handle is carried out camera video flowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620809360.0U CN206042211U (en) | 2016-07-28 | 2016-07-28 | Device and license plate recognition that handle is carried out camera video flowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206042211U true CN206042211U (en) | 2017-03-22 |
Family
ID=58307981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620809360.0U Expired - Fee Related CN206042211U (en) | 2016-07-28 | 2016-07-28 | Device and license plate recognition that handle is carried out camera video flowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206042211U (en) |
-
2016
- 2016-07-28 CN CN201620809360.0U patent/CN206042211U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20210728 |
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| CF01 | Termination of patent right due to non-payment of annual fee |