CN102694985A - Information superposition method, information extraction method, apparatus and system of video images - Google Patents
Information superposition method, information extraction method, apparatus and system of video images Download PDFInfo
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Abstract
An embodiment of the application discloses an information superposition method, an information extraction method, an apparatus and a system of video images, wherein the information superposition method comprises the steps of receiving an original analog video signal obtained by a camera, encoding information to be superposed to the original analog video signal and superposing the information to a preset area of the original analog video signal, and outputting the analog video signal which are superposed by encoding information. In the embodiment of the invention, what is superposed in the video signal is encoded information, so that the superposed information occupies a small space and has a reduced interference to the video images, and accordingly the identification speed is improved and the operand is reduced when an information extraction operation is carried out, and the analysis processing efficiency of the video images is improved.
Description
Technical field
The application relates to technical field of video monitoring, particularly relates to method, the method for extraction, the Apparatus and system of information stack in a kind of video image.
Background technology
Video monitoring has been applied in various fields at present; For example; The business hall in place such as telecommunications, bank; Video monitoring is through installing video camera in the monitoring occasion, each regional area in monitoring place is monitored and recorded a video through these video cameras, takes a large amount of video informations and these video informations are carried out code storage.In the video monitoring process, need carry out code storage to captured video, and the various information that on video file, superpose.With the temporal information is example, and existing time information superposition method commonly used comprises: the temporal information of directly on the video file name, annotating perhaps embeds time scale information etc. in the video file coding.
The inventor finds in the research process to prior art; Because information adopts artificial discernible mode to superpose usually; The amount of information that this stacked system can add is less, and is bigger to the interference of video information, when carrying out the information extraction computing; Recognition speed is slow and operand is bigger, therefore causes the analyzing and processing decrease in efficiency of video information; In addition; When the stack temporal information; Usually adopt RTC (the Real-Time Clock that adds the temporal information equipment self; Real-time clock) time is added in the vision signal, because the temporal information that the RTC clock time of distinct device because adopt RTC chip, design to use or the difference of running environment, causes being superposeed is inaccurate.
Summary of the invention
In order to solve the problems of the technologies described above; The application embodiment provides method, the method for extraction, the Apparatus and system of information stack in a kind of video image; Less and inaccurate to solve existing information stacked system amount of information, the not high problem of efficient when causing information Recognition.
The application embodiment discloses following technical scheme:
The method of information stack in a kind of video image comprises:
Receive the original analog vision signal that video camera obtains;
After the information in the said original analog vision signal that is added to treated is encoded, the predeterminable area of the said original analog vision signal that is added to;
Export the analog video signal of the coded message that superposeed.
The said information of treating in the said original analog vision signal that is added to is encoded and comprised: the information of treating in the said original analog vision signal that is added to is carried out the image lattice coding.
Said information in the said original analog vision signal to be superimposed comprises: temporal information, prior information, real time information, authorization information.
Said information in the said original analog vision signal to be superimposed is temporal information;
The said information of treating in the said original analog vision signal that is added to is encoded and is comprised:
Obtain temporal information through preset standard clock source;
Said temporal information is encoded according to the image lattice mode.
Also comprise:
Analog video signal to the coded message that superposeed carries out encoding compression according to the predictive encoding form, and the video file of memory encoding compression back generation.
The method of information extraction in a kind of video image, the information that is used for preceding method is superposeed is extracted, and comprising:
Obtain the video file after the encoding compression of storage, coded message has superposeed on the analog video signal in the said video file;
Said video file is carried out transcoding;
Extract the coded message of stack the analog video signal behind transcoding;
After said coded message carried out corresponding decoding, read the information in the said analog video signal that is added to.
Saidly video file carried out transcoding comprise:
Obtain the predeterminable area of the analog video signal of the coded message that superposeed in the said video file;
Analog video signal to said predeterminable area carries out transcoding.
The coded message of extracting stack the said analog video signal behind transcoding is specially: the image lattice coded message of extracting stack the analog video signal behind transcoding;
Said said coded message is carried out corresponding decoding after; The information that reads in the said analog video signal that is added to is specially: after said image lattice coded message is carried out corresponding decoding, from decoded image lattice, read the information in the said analog video signal that is added to.
The device of information stack in a kind of video image comprises:
Receiving element is used to receive the original analog vision signal that video camera obtains;
Coding unit is used for treating the be added to information of said original analog vision signal and encodes;
Superpositing unit is used for the be added to predeterminable area of said original analog vision signal of the information behind the said coding unit coding;
Output unit is used to export the analog video signal of coded message of having superposeed.
Said coding unit specifically is used for treating the be added to information of said original analog vision signal and carries out the image lattice coding;
Said coding unit comprises:
The temporal information acquiring unit is used for when the information to said original analog vision signal to be superimposed is temporal information, obtains temporal information through preset standard clock source;
The image lattice coding unit is used for said temporal information is encoded according to the image lattice mode.
Also comprise:
Compression unit is used for the analog video signal of the coded message that superposeed is carried out encoding compression according to the predictive encoding form;
Memory cell is used for the video file that memory encoding compression back generates.
The device of information extraction in a kind of video image, the information that is used for aforementioned means is superposeed is extracted, and comprising:
Acquiring unit is used to obtain the video file after the encoding compression of storage, and coded message has superposeed on the analog video signal in the said video file;
Transcoding units is used for said video file is carried out transcoding;
Extraction unit, the analog video signal that is used for behind the transcoding extracts the coded message of stack;
Decoding unit after being used for said coded message carried out corresponding decoding, reads the information in the said analog video signal that is added to.
Said transcoding units comprises:
The predeterminable area acquiring unit is used for obtaining the superposeed predeterminable area of analog video signal of coded message of said video file;
The predeterminable area transcoding units is used for the analog video signal of said predeterminable area is carried out transcoding.
Said extraction unit, the analog video signal that specifically is used for behind the transcoding extracts the image lattice coded message of stack;
Said decoding unit after specifically being used for said image lattice coded message carried out corresponding decoding, reads the information in the said analog video signal that is added to from decoded image lattice.
A kind of video image processing system comprises at least one video camera, and the video image processing apparatus that is connected with said at least one video camera,
Said at least one video camera is used to obtain the original analog vision signal;
Said video image processing apparatus; Be used to receive the original analog vision signal that said video camera obtains; After the information in the said original analog vision signal that is added to treated is encoded; The superposeed analog video signal of coded message of the predeterminable area of the said original analog vision signal that is added to, output.
Said video image processing apparatus also is used for the analog video signal of the coded message that superposeed is carried out encoding compression according to the predictive encoding form, and the video file of memory encoding compression back generation.
Said video image processing apparatus; Also be used to obtain the video file after the encoding compression of storage; The coded message that superposeed on the analog video signal in the said video file is carried out transcoding to said video file, extracts the coded message of stack the analog video signal behind transcoding; After said coded message carried out corresponding decoding, read the information in the said analog video signal that is added to.
Can find out by the foregoing description; When the application superposes in the information of carrying out; Receive the original analog vision signal that video camera obtains; After the information in the original analog vision signal that is added to treated is encoded, the predeterminable area of the original analog that is added to vision signal, the superposeed analog video signal of coded message of output; Accordingly, when carrying out information extraction, obtain the video file after the encoding compression of storage; Video file is carried out transcoding; Extract the coded message of stack the analog video signal behind transcoding, coded message is carried out corresponding decoding after, read the information in the analog video signal that is added to.What the application embodiment superposeed in vision signal is the information behind the coding, and the information occupation space that therefore adds is less, to the interference reduction of video information; Corresponding when carrying out the information extraction computing; Recognition speed improves, and operand diminishes, and has improved the analyzing and processing efficient of video information; When the stack temporal information,, therefore improved the accuracy of institute's joining day information especially through adding the information that unified standard clock source provides.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously; For those of ordinary skills, under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the first embodiment flow chart of the method for information stack in the application's video image;
Fig. 2 is the second embodiment flow chart of the method for information stack in the application's video image;
Fig. 3 is the first embodiment flow chart of the method for information extraction in the application's video image;
Fig. 4 is the second embodiment flow chart of the method for information extraction in the application's video image;
Fig. 5 is a kind of structural representation of using the video monitoring system of the application's method embodiment;
Fig. 6 is the first embodiment block diagram of the device of information stack in the application's video image;
Fig. 7 is the second embodiment block diagram of the device of information stack in the application's video image;
Fig. 8 is the embodiment block diagram of the device of information extraction in the application's video image;
Fig. 9 is the embodiment block diagram of the application's video image processing system.
Embodiment
The following embodiment of the present invention provides method, the method for extraction, the Apparatus and system of information stack in a kind of video image.
In order to make those skilled in the art person understand the technical scheme in the embodiment of the invention better; And make the above-mentioned purpose of the embodiment of the invention, feature and advantage can be more obviously understandable, below in conjunction with accompanying drawing technical scheme in the embodiment of the invention done further detailed explanation.
Referring to Fig. 1, be the first embodiment flow chart of the method for information stack in the application's video image:
Step 101: receive the original analog vision signal that video camera obtains.
Step 102: after the information in the original analog vision signal that is added to treated is encoded, the predeterminable area of the original analog that is added to vision signal.
Wherein, the information in the original analog vision signal to be superimposed can comprise: temporal information, prior information, real time information, authorization information.Concrete, prior information can comprise the event type of video image, videograph content, videograph purpose etc.; Real time information can comprise the real time of every frame video image, the place of video capture, real-time early warning etc.; Authorization information can comprise photographer's identity etc.
Wherein, Describing mode for information to be superimposed can not be confined to character style; For example: also can utilization figure and the link weights place position is described; Utilizing tabulation or chained list is that numerical value is described event type, utilizes array to describe the recording time of every frame, perhaps utilizes structure or multi-dimensional matrix encapsulation event content etc.
The information in the original analog vision signal that is added to treated is encoded and can be specially the information of treating in the original analog vision signal that is added to and carry out the image lattice coding.Wherein, the information type behind the coding is not limited yet, for example: the information behind the coding can be overlaying structure pattern, overlay color piece, stack half-tone information, perhaps direct overlaying character etc.
Step 103: the analog video signal of exporting the coded message that superposeed.
Referring to Fig. 2, be the second embodiment flow chart of the method for information stack in the application's video image, this embodiment is that example is described with the stack temporal information:
Step 201: receive the original analog vision signal that video camera obtains.
When video monitoring, possibly there is multiple cameras that the zones of different under the same environment is monitored simultaneously.Therefore, multiple cameras is caught the raw video signal that is used to handle simultaneously.
Step 202: obtain temporal information through preset standard clock source.
Standard clock source can the select time precision be superior to one minute standard clock source, and is preferred, can adopt the GPS receiver.
When temporal information is quantized; Can specify a certain moment is zero-time; Current time with received raw video signal deducts this zero-time; Resulting time difference GTime be the real time difference information that will superpose, this GTime can represent with a no symbol shaping variable, can be as accurate as 1 millisecond.
Step 203: temporal information is encoded according to the image lattice mode.
When selecting type of coding; For extraction rate and the accuracy rate that improves overlapped information; And overcome the interference that video compression possibly brought; Can use BGR (Blue Green Red) color characteristic to carry temporal information GTime, for example, can add seven sizes in the lower left corner of every frame video image and be seven and multiply by the color lump of seven pixels.
When carrying out codes match; The BGR passage of above-mentioned seven color lumps is proposed separately, and each passage is provided with four intervals, representes 0,1,2,3 four numeral respectively; Form one 21 quaternary number thus; Its technical scope can be in 0 to 4398046511103 scope, is equivalent to can totally represent the time in 139 years being accurate under 1 millisecond the situation.
Step 204: the be added to predeterminable area of original analog vision signal of the information after will encoding.
Encoding when stack, read standard time clock time GTime, convert the value of GTime into 7 BGR color squares, and be superimposed upon the lower left corner of video image.
Step 205: the analog video signal of exporting the coded message that superposeed.
Step 206: the analog video signal to the coded message that superposeed carries out encoding compression according to the predictive encoding form.
For the stack of output the analog video signal of coded message, adopt to be fit to transmission and it to be carried out encoding compression with the coded format of storage, form video file, above-mentioned coded format can for H.264, MPEG4, OP8, MJPEG etc.
Step 207: the video file that memory encoding compression back generates.
Hence one can see that; In the existing supervisory control system, when the video file of storing according to temporal information retrieval and playback, owing to the accuracy of temporal information is relatively poor; Therefore accuracy error has limited thus based on temporal information video has been carried out related manual work or Intelligent treatment minute more than the level.Therefore, the application embodiment through adding the information that unified standard clock source provides, has therefore improved the accuracy of institute's joining day information when the stack temporal information.
Corresponding with the method embodiment of information stack in the application's video image, the application also provides the embodiment of information extraction in the video image, and the embodiment of this information extraction is used for the information that aforementioned information stacking method embodiment is superposeed is extracted.
Referring to Fig. 3, be the first embodiment flow chart of the method for information extraction in the application's video image:
Step 301: obtain the video file after the encoding compression of storage, coded message has superposeed on the analog video signal in this video file.
Step 302: video file is carried out transcoding.
Concrete, video file is carried out transcoding can be comprised: obtain the predeterminable area of the analog video signal of the coded message that superposeed in the video file, the analog video signal of predeterminable area is carried out transcoding.
Step 303: the coded message of extracting stack the analog video signal behind transcoding.
Step 304: after coded message carried out corresponding decoding, read the information in the analog video signal that is added to.
Referring to Fig. 4, be the second embodiment flow chart of the method for information extraction in the application's video image, this embodiment is that example is described with the temporal information:
Step 401: obtain the video file after the encoding compression of storage, code time information has superposeed on the analog video signal in this video file.
Filename that the RTC clock that uses in the time of can be according to code storage is write as video file or the time tag that in coding, inserts retrieve the video of fixed time fast.
Step 402: the predeterminable area that obtains the analog video signal of the code time information that superposeed in the video file.
Step 403: the analog video signal to predeterminable area carries out transcoding.
Wherein, can directly carry out transcoding, obtain being fit to the image lattice coded message of disengaging time information, for example the coded message of form such as BMP, YUV video file.But, in order to reduce the transcoding time, can only carry out transcoding in the present embodiment to the zone that comprises overlapped information in the video file, for example,, be only to carry out transcoding then to lower left corner part at transcoding if information is superimposed upon the lower left corner of video image.
Step 404: the image lattice code time information that extracts stack the analog video signal behind transcoding.
Step 405: after the image lattice code time information carried out corresponding decoding, from decoded image lattice, read the temporal information in the analog video signal that is added to.
Second embodiment in conjunction with the method for aforementioned information stack; Can extract the colouring information of the BGR passage of 7 color lumps that superposeed this moment when carrying out transcoding, these 7 colouring informations are carried out the threshold value classification; Obtain 21 corresponding quaternary numbers; And this quaternary number is converted into GTime numerical value, according to GTime numerical value and predefined start time, obtain the standard time when current video image is actual to be recorded.
Referring to Fig. 5, be a kind of structural representation of using the video monitoring system of the application's method embodiment:
Comprise in this video monitoring system: N platform video camera 510, the information adding set 520, code storage device 530 and the information extracting device 540 that are connected successively with N platform video camera.
With the temporal information is example; Wherein, The N road analog video signal of N platform video camera 510 outputs is input to information adding set 520 in the video monitoring system; Information adding set 520 is given stack standard time coded message on the analog video signal of every road according to the standard time clock time of self, and the analog video signal that has added the standard time coded message storage device 530 that is encoded carries out after the digitlization after the encoding compression stored in form with video file.When standard time of each two field picture that needs obtain these video files during information; Information extracting device 540 just obtains video file from code storage device 530; And the standard time coded message in each two field picture of video file extracted decoding back outputting standard temporal information.
Corresponding with the embodiment of the method for the method of information stack in the application's video image and information extraction, the application also provides information superposes in the video image device, the device of information extraction and the embodiment of video image processing system.
Referring to Fig. 6, be the first embodiment block diagram of the device of information stack in the application's video image:
This device comprises: receiving element 610, coding unit 620, superpositing unit 630 and output unit 640.
Wherein, receiving element 610 is used to receive the original analog vision signal that video camera obtains;
Referring to Fig. 7, be the second embodiment block diagram of the device of information stack in the application's video image:
This device comprises: receiving element 710, coding unit 720, superpositing unit 730, output unit 740, compression unit 750 and memory cell 760.
Wherein, receiving element 710 is used to receive the original analog vision signal that video camera obtains;
Wherein, coding unit 720 can specifically be used for treating the be added to information of said original analog vision signal and carry out the image lattice coding; Further, this coding unit 720 can comprise (not shown among Fig. 7): the temporal information acquiring unit, be used for when the information to said original analog vision signal to be superimposed is temporal information, and obtain temporal information through preset standard clock source; The image lattice coding unit is used for said temporal information is encoded according to the image lattice mode.
Referring to Fig. 8, be the embodiment block diagram of the device of information extraction in the application's video image, this device is used for the information that the aforementioned information stacking apparatus is superposeed is extracted:
This device comprises: acquiring unit 810, transcoding units 820, extraction unit 830 and decoding unit 840.
Wherein, acquiring unit 810 is used to obtain the video file after the encoding compression of storage, and coded message has superposeed on the analog video signal in the said video file;
Transcoding units 820 is used for said video file is carried out transcoding;
Decoding unit 840 after being used for said coded message carried out corresponding decoding, reads the information in the said analog video signal that is added to.
Concrete, transcoding units 820 can comprise (not shown among Fig. 8): transcoding units comprises:
The predeterminable area acquiring unit is used for obtaining the superposeed predeterminable area of analog video signal of coded message of said video file; The predeterminable area transcoding units is used for the analog video signal of said predeterminable area is carried out transcoding.
Further, extraction unit 830, the analog video signal that can specifically be used for behind the transcoding extracts the image lattice coded message of stack; Said decoding unit 840 after can specifically being used for said image lattice coded message carried out corresponding decoding, reads the information in the said analog video signal that is added to from decoded image lattice.
Referring to Fig. 9, be the embodiment block diagram of the application's video image processing system:
This system comprises: at least one video camera 910, and the video image processing apparatus that is connected with said at least one video camera 910.Convenient for example, only show a video camera 910 among Fig. 9, this example is not limited to the quantity of video camera among the application embodiment.
Wherein, said at least one video camera 910 is used to obtain the original analog vision signal;
Said video image processing apparatus 920; Be used to receive the original analog vision signal that said video camera obtains; After the information in the said original analog vision signal that is added to treated is encoded; The superposeed analog video signal of coded message of the predeterminable area of the said original analog vision signal that is added to, output.
Further, said video image processing apparatus 920 also is used for the analog video signal of the coded message that superposeed is carried out encoding compression according to the predictive encoding form, and the video file of memory encoding compression back generation.
Further; Said video image processing apparatus 920 also is used to obtain the video file after the encoding compression of storage, and coded message has superposeed on the analog video signal in the said video file; Said video file is carried out transcoding; Extract the coded message of stack the analog video signal behind transcoding, said coded message is carried out corresponding decoding after, read the information in the said analog video signal that is added to.
Description through to above execution mode can be known; When the application superposes in the information of carrying out; Receive the original analog vision signal that video camera obtains; After the information in the original analog vision signal that is added to treated is encoded, the predeterminable area of the original analog that is added to vision signal, the superposeed analog video signal of coded message of output; Accordingly, when carrying out information extraction, obtain the video file after the encoding compression of storage; Video file is carried out transcoding; Extract the coded message of stack the analog video signal behind transcoding, coded message is carried out corresponding decoding after, read the information in the analog video signal that is added to.What the application embodiment superposeed in vision signal is the information behind the coding, and the information occupation space that therefore adds is less, to the interference reduction of video information; Corresponding when carrying out the information extraction computing; Recognition speed improves, and operand diminishes, and has improved the analyzing and processing efficient of video information; When the stack temporal information,, therefore improved the accuracy of institute's joining day information especially through adding the information that unified standard clock source provides.
The technology that those skilled in the art can be well understood in the embodiment of the invention can realize by the mode that software adds essential general hardware platform.Based on such understanding; The part that technical scheme in the embodiment of the invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium; Like ROM/RAM, magnetic disc, CD etc., comprise some instructions with so that computer equipment (can be personal computer, server; The perhaps network equipment etc.) or other digital devices (like STB, data collecting card etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses all is the difference with other embodiment.Especially, for system embodiment, because it is basically similar in appearance to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. the method for information stack in the video image is characterized in that, comprising:
Receive the original analog vision signal that video camera obtains;
After the information in the said original analog vision signal that is added to treated is encoded, the predeterminable area of the said original analog vision signal that is added to;
Export the analog video signal of the coded message that superposeed.
2. method according to claim 1 is characterized in that, the said information of treating in the said original analog vision signal that is added to is encoded and comprised: the information of treating in the said original analog vision signal that is added to is carried out the image lattice coding.
3. method according to claim 1 is characterized in that, said information in the said original analog vision signal to be superimposed comprises: temporal information, prior information, real time information, authorization information.
4. method according to claim 3 is characterized in that, said information in the said original analog vision signal to be superimposed is temporal information;
The said information of treating in the said original analog vision signal that is added to is encoded and is comprised:
Obtain temporal information through preset standard clock source;
Said temporal information is encoded according to the image lattice mode.
5. method according to claim 1 is characterized in that, also comprises:
Analog video signal to the coded message that superposeed carries out encoding compression according to the predictive encoding form, and the video file of memory encoding compression back generation.
6. the method for information extraction in the video image is characterized in that, is used for comprising extracting like any information that said method superposeed of claim 1 to 5:
Obtain the video file after the encoding compression of storage, coded message has superposeed on the analog video signal in the said video file;
Said video file is carried out transcoding;
Extract the coded message of stack the analog video signal behind transcoding;
After said coded message carried out corresponding decoding, read the information in the said analog video signal that is added to.
7. method according to claim 6 is characterized in that, saidly video file is carried out transcoding comprises:
Obtain the predeterminable area of the analog video signal of the coded message that superposeed in the said video file;
Analog video signal to said predeterminable area carries out transcoding.
8. method according to claim 6 is characterized in that, the coded message of extracting stack the said analog video signal behind transcoding is specially: the image lattice coded message of extracting stack the analog video signal behind transcoding;
Said said coded message is carried out corresponding decoding after; The information that reads in the said analog video signal that is added to is specially: after said image lattice coded message is carried out corresponding decoding, from decoded image lattice, read the information in the said analog video signal that is added to.
9. the device of information stack in the video image is characterized in that, comprising:
Receiving element is used to receive the original analog vision signal that video camera obtains;
Coding unit is used for treating the be added to information of said original analog vision signal and encodes;
Superpositing unit is used for the be added to predeterminable area of said original analog vision signal of the information behind the said coding unit coding;
Output unit is used to export the analog video signal of coded message of having superposeed.
10. device according to claim 9 is characterized in that, said coding unit specifically is used for treating the be added to information of said original analog vision signal and carries out the image lattice coding;
Said coding unit comprises:
The temporal information acquiring unit is used for when the information to said original analog vision signal to be superimposed is temporal information, obtains temporal information through preset standard clock source;
The image lattice coding unit is used for said temporal information is encoded according to the image lattice mode.
11. device according to claim 9 is characterized in that, also comprises:
Compression unit is used for the analog video signal of the coded message that superposeed is carried out encoding compression according to the predictive encoding form;
Memory cell is used for the video file that memory encoding compression back generates.
12. the device of information extraction is characterized in that in the video image, is used for comprising extracting like any information that said device superposeed of claim 9 to 11:
Acquiring unit is used to obtain the video file after the encoding compression of storage, and coded message has superposeed on the analog video signal in the said video file;
Transcoding units is used for said video file is carried out transcoding;
Extraction unit, the analog video signal that is used for behind the transcoding extracts the coded message of stack;
Decoding unit after being used for said coded message carried out corresponding decoding, reads the information in the said analog video signal that is added to.
13. device according to claim 12 is characterized in that, said transcoding units comprises:
The predeterminable area acquiring unit is used for obtaining the superposeed predeterminable area of analog video signal of coded message of said video file;
The predeterminable area transcoding units is used for the analog video signal of said predeterminable area is carried out transcoding.
14. device according to claim 12 is characterized in that, said extraction unit, and the analog video signal that specifically is used for behind the transcoding extracts the image lattice coded message of stack;
Said decoding unit after specifically being used for said image lattice coded message carried out corresponding decoding, reads the information in the said analog video signal that is added to from decoded image lattice.
15. a video image processing system is characterized in that, comprises at least one video camera, and the video image processing apparatus that is connected with said at least one video camera,
Said at least one video camera is used to obtain the original analog vision signal;
Said video image processing apparatus; Be used to receive the original analog vision signal that said video camera obtains; After the information in the said original analog vision signal that is added to treated is encoded; The superposeed analog video signal of coded message of the predeterminable area of the said original analog vision signal that is added to, output.
16. system according to claim 15 is characterized in that,
Said video image processing apparatus also is used for the analog video signal of the coded message that superposeed is carried out encoding compression according to the predictive encoding form, and the video file of memory encoding compression back generation.
17. system according to claim 16 is characterized in that,
Said video image processing apparatus; Also be used to obtain the video file after the encoding compression of storage; The coded message that superposeed on the analog video signal in the said video file is carried out transcoding to said video file, extracts the coded message of stack the analog video signal behind transcoding; After said coded message carried out corresponding decoding, read the information in the said analog video signal that is added to.
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| CN102694985B (en) | 2015-05-20 |
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