CN105049878B - A kind for the treatment of method and apparatus of approximation station symbol - Google Patents
A kind for the treatment of method and apparatus of approximation station symbol Download PDFInfo
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- CN105049878B CN105049878B CN201510397695.6A CN201510397695A CN105049878B CN 105049878 B CN105049878 B CN 105049878B CN 201510397695 A CN201510397695 A CN 201510397695A CN 105049878 B CN105049878 B CN 105049878B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
- H04N21/2353—Processing of additional data, e.g. scrambling of additional data or processing content descriptors specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
- H04N21/4355—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving reformatting operations of additional data, e.g. HTML pages on a television screen
Abstract
The invention discloses a kind for the treatment of method and apparatus of approximate station symbol, to modify to known station symbol, obtain and fast and accurately obtain the purpose of station symbol with its similar approximate station symbol, realization.Wherein, this method includes：Step A：According to First target image information, the pixel point value of each row of the first station symbol is obtained；Step B：The pixel point value of First target the first row is matched with the frame image comprising the second station symbol, determines second station symbol region；Step C：In second station symbol region, by the pixel point value of First target other rows respectively with it is described include that a frame image of the second station symbol matches, determine the image difference of first station symbol and second station symbol；Step D：The difference pixel point value that the first station symbol and the second station symbol are obtained according to described image difference changes first station symbol according to the difference pixel point value, obtains the second station symbol.
Description
Technical field
The present invention relates to technical field of image processing, more particularly to a kind for the treatment of method and apparatus of approximate station symbol.
Background technology
Station symbol is a kind of visual digital watermark, is often added in television video file, for declaring television video
Property right is all and contents attribute, so that TV station is distinguished with different logotypes from other mechanisms.TV station's platform
An important factor for mark has become channel specialization and brand creation, with the continuous hair of radio and television services and Industry Reform
Exhibition, video technique are constantly brought forth new ideas, and various media companies emerge one after another, and the thing followed is that television station channel number constantly increases
Adding, station symbol quantity also constantly rises to,.
Station symbol is the mark of a TV station, contains the important semantic informations such as TV station's platform name, program orientation, is real
One of existing video analysis, understanding and important meaning of one's words source of retrieval.With the rapid development of TV tech, the program of TV stations at different levels
Sets up to up to a hundred are worked by manually being monitored in real time to TV signal or specific television program being selected to include
Intensity is big, and working efficiency is low, and can inevitably make mistakes.Station symbol detects and identification technology is the key that overcome problem above, tool
There are highly important research and application value.
Largely there is a situation where that the station symbol of same TV station's different channel is approximate mutually in reality, such as CCTV1 and
CCTV2, CCTV3 ... etc., approximate station symbol often have higher global similarity, it is easy to obscure.In the prior art, when need
When being obtained to multiple approximate station symbols, the method for generally use is to extract to extract multiple station symbols respectively, this to carry
Similitude of the method since approximate station symbol can not be utilized, the content extracted in extraction process is taken often to occur repeated existing
As significantly increasing the time of station symbol extraction, reducing extraction efficiency.
Invention content
The present invention provides a kind for the treatment of method and apparatus of approximate station symbol, to modify to known station symbol, obtain with
Its similar approximate station symbol, realizes the purpose for fast and accurately obtaining station symbol.
The present invention provides a kind of processing method of approximate station symbol, including：
Step A：According to First target image information, the pixel point value of each row of the first station symbol is obtained；
Step B：The pixel point value of First target the first row is matched with the frame image comprising the second station symbol, really
Fixed second station symbol region；
Step C：In second station symbol region, by the pixel point value of First target other rows respectively with it is described
Including a frame image of the second station symbol is matched, the image difference of first station symbol and second station symbol is determined；
Step D：The difference pixel point value that the first station symbol and the second station symbol are obtained according to described image difference, according to the difference
Different pixel point value changes first station symbol, obtains the second station symbol.
Some advantageous effects of the embodiment of the present invention may include：
The method of the embodiment of the present invention can be obtained according to one (such as the first station symbol) known in same channel series station symbol
Take other station symbols (such as the second station symbol) for belonging to same channel series station symbol.The embodiment passes through to known First target figure
As information is handled, pixel point value of the First target per a line is first obtained, enables to be generated according to first station symbol
Approximate station symbol.By matching the pixel point value of the first row in the first station symbol with the frame image comprising the second station symbol, such as
Fruit successful match, you can to determine the position of the second station symbol.Then by the pixel point value and the frame figure of other rows of First target
As continuing to match, successful match is then the second station symbol image section identical with the first station symbol, and matching is unsuccessful, is
Second station symbol is repaiied according to the parts of images difference on the basis of First target with First target image difference part
Change, the second station symbol to be generated can be accessed.This method by by the second station symbol to be generated and known first station symbol into
Row matching changes the first station symbol according to the image difference that matching obtains, can quickly and accurately obtain approximate platform to be generated
Mark, saves a large amount of station symbol generated time, improves formation efficiency.
In one embodiment, further include before the step A：
Step E：Intercept the screen picture for including the second station symbol in current screen predeterminable area；
Step F：After getting current screen picture, the image in multiframe predeterminable area and accumulation are intercepted, obtains platform
Mark candidate image；
Step G：After the background of station symbol candidate image and station symbol are split, according to the starting and ending ranks of station symbol
Isolate the frame image comprising the second station symbol in position.
The embodiment is mainly defined the acquisition of the frame image comprising the second station symbol, and those skilled in the art answer
Work as understanding, due to the needs that television broadcasting plays, is inevitably carried on the station symbol sectional drawing got and play background, to obtaining
Take that accurate, clearly original station symbol image brings inconvenience.The embodiment by repeatedly intercepting the image of station symbol region, and
Accumulated process is carried out, preliminary station symbol candidate image is obtained.Then the background in station symbol candidate image is carried out with station symbol itself
Segmentation, can obtain clear, complete station symbol image, using as the image for including the second station symbol.The embodiment is easy to operate, energy
Enough frame images for quickly and accurately obtaining including the second station symbol are laid a good foundation to generate approximate second station symbol.
In one embodiment, the step B is specifically included：
By the First target the first row pixel point value with it is described include that a frame image of the second station symbol matches, sentence
Whether break being capable of successful match；
When successful match, using it is described include the second station symbol a frame image in successful match region as the second station symbol
First trip initial position, the second station symbol region is determined according to the first trip initial position of second station symbol.
The embodiment is by carrying out the pixel point value of First target the first row and the frame image comprising the second station symbol
Matching, if successful match, can obtain the Position Approximate of the first trip of the second station symbol, and then according to the big of the second station symbol first trip
The region of the second station symbol of general location determination.The embodiment proposes a kind of frame that basis includes approximate station symbol to be generated
Image, the method for determining the approximate second station symbol region, realization is relatively simple, and the position determined is more accurate, is
In next step complete second station symbol is generated to provide convenience.
In one embodiment, the step D is specifically included：
By in the First target pixel point value with it is described include the second station symbol a successful part of frame images match,
Common region as the first station symbol and the second station symbol；
According to described image difference, pixel point value of the described image difference in second station symbol is obtained；
According to the common region and described image difference of first station symbol and the second station symbol in second station symbol
Pixel point value generates the second station symbol.
The embodiment by will include the second station symbol a frame image and the first station symbol in all pixels point value one by one into
Row matching, the part of successful match is the second station symbol part identical with the first station symbol, can be directly with phase in the first station symbol
The part for the successful match answered is basic as the template for generating the second station symbol, then passes through and extract the second station symbol and the first station symbol difference
The pixel point value of the difference section is substituted into template basis corresponding positions by partial pixel point value on the basis of template above-mentioned
In setting, the second station symbol can be fast and accurately generated, realize and quickly generated according to known station symbol pairing approximation station symbol
Purpose.
A kind of processing unit of approximation station symbol, including：
Pixel acquisition module, for according to First target image information, obtaining the pixel of each row of the first station symbol
Point value；
Position determination module is used for the pixel point value of First target the first row and the frame image comprising the second station symbol
It is matched, determines second station symbol region；
Difference determining module is used in second station symbol region, by the pixel of other rows of First target
Value respectively with it is described include that a frame image of the second station symbol is matched, determine the figure of first station symbol and second station symbol
Aberration is different；
Station symbol generation module, the difference pixel for obtaining the first station symbol and the second station symbol according to described image difference
Value changes first station symbol according to the difference pixel point value, obtains the second station symbol.
In one embodiment, further include：
Screen interception module, for intercepting the screen picture for including the second station symbol in current screen predeterminable area；
Image candidate module, for after getting current screen picture, intercepting the image in multiframe predeterminable area simultaneously
Accumulation obtains station symbol candidate image；
Image separation module, after being split the background of station symbol candidate image and station symbol, according to the starting of station symbol
The frame image comprising the second station symbol is isolated with the position for terminating ranks.
In one embodiment, the position determination module specifically includes：
Images match submodule, for by the First target the first row pixel point value with it is described include the second station symbol
One frame image is matched, and judging whether being capable of successful match；
Region determination sub-module, for when successful match, by it is described include the second station symbol a frame image in matching at
First trip initial position of the region of work(as the second station symbol determines the second station symbol according to the first trip initial position of second station symbol
Region.
In one embodiment, the station symbol generation module specifically includes：
Same district determination sub-module, for by the First target pixel point value with it is described include the second station symbol a frame
The successful part of images match, the common region as the first station symbol and the second station symbol；
Difference acquisition submodule, for according to described image difference, obtaining described image difference in second station symbol
Pixel point value；
Station symbol acquisition submodule, for the common region and described image difference according to first station symbol and the second station symbol
Pixel point value in second station symbol generates the second station symbol.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages can be by the explanations write
Specifically noted structure is realized and is obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of flow chart of the processing method of approximate station symbol in the embodiment of the present invention；
Fig. 2 is the flow chart of the processing method of another approximate station symbol in the embodiment of the present invention；
Fig. 3 is a kind of flow chart of the step S102 of the processing method of approximate station symbol in the embodiment of the present invention；
Fig. 4 is a kind of flow chart of the step S104 of the processing method of approximate station symbol in the embodiment of the present invention；
Fig. 5 is a kind of flow chart of the step S402 of the processing method of approximate station symbol in the embodiment of the present invention；
Fig. 6 is a kind of flow chart of the processing method of approximate station symbol in the specific embodiment of the invention；
Fig. 7 is a kind of block diagram of the processing unit of approximate station symbol in the embodiment of the present invention；
Fig. 8 is a kind of block diagram of the position determination module 72 of the processing unit of approximate station symbol in the embodiment of the present invention；
Fig. 9 is a kind of block diagram of the station symbol generation module 74 of the processing unit of approximate station symbol in the embodiment of the present invention.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
The present invention provides a kind of processing method of approximate station symbol and includes the following steps S101-S104 as described in Figure 1：
Step S101：According to First target image information, the pixel point value of each row of the first station symbol is obtained；
Step S102：By the pixel point value of First target the first row and the frame image progress comprising the second station symbol
Match, determines second station symbol region；
Step S103：In second station symbol region, by the pixel point value of First target other rows respectively with
Described includes that a frame image of the second station symbol is matched, and determines the image difference of first station symbol and second station symbol；
Step S104：The difference pixel point value that the first station symbol and the second station symbol are obtained according to described image difference, according to institute
It states difference pixel point value and changes first station symbol, obtain the second station symbol.
The method of the embodiment of the present invention can be obtained according to one (such as the first station symbol) known in same channel series station symbol
Take other station symbols (such as the second station symbol) for belonging to same channel series station symbol.The embodiment passes through to known First target figure
As information is handled, pixel point value of the First target per a line is first obtained, enables to be generated according to first station symbol
Approximate station symbol.By matching the pixel point value of the first row in the first station symbol with the frame image comprising the second station symbol, such as
Fruit successful match, you can to determine the position of the second station symbol.Then by the pixel point value and the frame figure of other rows of First target
As continuing to match, successful match is then the second station symbol image section identical with the first station symbol, and matching is unsuccessful, is
Second station symbol is repaiied according to the parts of images difference on the basis of First target with First target image difference part
Change, the second station symbol to be generated can be accessed.This method by by the second station symbol to be generated and known first station symbol into
Row matching changes the first station symbol according to the image difference that matching obtains, can quickly and accurately obtain approximate platform to be generated
Mark, saves a large amount of station symbol generated time, improves formation efficiency.
In one embodiment, as shown in Fig. 2, before the step S101 further comprising the steps of S201-S203：
Step S201：Intercept the screen picture for including the second station symbol in current screen predeterminable area；
Step S202：After getting current screen picture, the image in multiframe predeterminable area and accumulation are intercepted, is obtained
Station symbol candidate image；
Step S203：After the background of station symbol candidate image and station symbol are split, according to the starting and ending row of station symbol
Isolate the frame image comprising the second station symbol in the position of row.
The embodiment is mainly defined the acquisition of the frame image comprising the second station symbol, and those skilled in the art answer
Work as understanding, due to the needs that television broadcasting plays, is inevitably carried on the station symbol sectional drawing got and play background, to obtaining
Take that accurate, clearly original station symbol image brings inconvenience.The embodiment by repeatedly intercepting the image of station symbol region, and
Accumulated process is carried out, preliminary station symbol candidate image is obtained.Then the background in station symbol candidate image is carried out with station symbol itself
Segmentation, can obtain clear, complete station symbol image, using as the image for including the second station symbol.The embodiment is easy to operate, energy
Enough frame images for quickly and accurately obtaining including the second station symbol are laid a good foundation to generate approximate second station symbol.
In one embodiment, as shown in figure 3, the step S102 can be embodied as following steps S301-S302
Step S301：By the First target the first row pixel point value with it is described include the second station symbol a frame image into
Row matching, judging whether being capable of successful match；
Step S302：When successful match, by it is described include the second station symbol a frame image in successful match region make
For the first trip initial position of the second station symbol, the second station symbol region is determined according to the first trip initial position of second station symbol.
The embodiment is by carrying out the pixel point value of First target the first row and the frame image comprising the second station symbol
Matching, if successful match, can obtain the Position Approximate of the first trip of the second station symbol, and then according to the big of the second station symbol first trip
The region of the second station symbol of general location determination.The embodiment proposes a kind of frame that basis includes approximate station symbol to be generated
Image, the method for determining the approximate second station symbol region, realization is relatively simple, and the position determined is more accurate, is
In next step complete second station symbol is generated to provide convenience.
In one embodiment, as shown in figure 4, the step S104 can be embodied as following steps S401-S403：
Step S401：By in the First target pixel point value with it is described include the second station symbol a frame images match at
The part of work(, the common region as the first station symbol and the second station symbol；
Step S402：According to described image difference, pixel point value of the described image difference in second station symbol is obtained；
Step S403：According to the common region and described image difference of first station symbol and the second station symbol described second
Pixel point value in station symbol generates the second station symbol.
The embodiment by will include the second station symbol a frame image and the first station symbol in all pixels point value one by one into
Row matching, the part of successful match is the second station symbol part identical with the first station symbol, can be directly with phase in the first station symbol
The part for the successful match answered is basic as the template for generating the second station symbol, then passes through and extract the second station symbol and the first station symbol difference
The pixel point value of the difference section is substituted into template basis corresponding positions by partial pixel point value on the basis of template above-mentioned
In setting, the second station symbol can be fast and accurately generated, realize and quickly generated according to known station symbol pairing approximation station symbol
Purpose.
The processing method for illustrating approximate station symbol provided in an embodiment of the present invention below by specific embodiment, such as Fig. 6 institutes
Show, includes the following steps S601-S612：
Step S601：Intercept the screen picture for including the second station symbol in current screen predeterminable area；
Step S602：After getting current screen picture, the image in multiframe predeterminable area and accumulation are intercepted, is obtained
Station symbol candidate image；
Step S603：After the background of station symbol candidate image and station symbol are split, according to the starting and ending row of station symbol
Isolate the frame image comprising the second station symbol in the position of row.
Step S604：According to First target image information, the pixel point value of each row of the first station symbol is obtained；
Step S605：By the First target the first row pixel point value with it is described include the second station symbol a frame image into
Row matching, judging whether being capable of successful match；
Step S606：When successful match, by it is described include the second station symbol a frame image in successful match region make
For the first trip initial position of the second station symbol, the second station symbol region is determined according to the first trip initial position of second station symbol.
Step S607：In second station symbol region, by the pixel point value of First target other rows respectively with
Described includes that a frame image of the second station symbol is matched, and determines the image difference of first station symbol and second station symbol；
Step S608：By in the First target pixel point value with it is described include the second station symbol a frame images match at
The part of work(, the common region as the first station symbol and the second station symbol；
Step S609：Obtain the maximum value matrix and minimum value square of pixel point value of the described image difference in the second station symbol
Battle array, the pixel point value includes the value of each components of RGB or the gray value of pixel；
Step S610：According to the maximum value matrix of the pixel point value and minimum value matrix, second station symbol is obtained
The difference of the maxima and minima of pixel point value；
Step S611：The difference of the maxima and minima of the pixel point value is less than to the pixel of predetermined threshold value, is made
For pixel of the described image difference in second station symbol, and obtain the pixel point value of the pixel.
Step S612：According to the common region and described image difference of first station symbol and the second station symbol described second
Pixel point value in station symbol generates the second station symbol.
Corresponding to a kind of processing method for approximate station symbol that above-described embodiment provides, the embodiment of the present invention also provides a kind of close
Like the processing unit of station symbol, as shown in fig. 7, comprises：
Pixel acquisition module 71, for according to First target image information, obtaining the picture of each row of the first station symbol
Vegetarian refreshments value；
Position determination module 72 is used for the pixel point value of First target the first row and the frame figure comprising the second station symbol
As being matched, second station symbol region is determined；
Difference determining module 73 is used in second station symbol region, by the pixel of other rows of First target
Point value respectively with it is described include that a frame image of the second station symbol is matched, determine first station symbol and second station symbol
Image difference；
Station symbol generation module 74, the difference pixel for obtaining the first station symbol and the second station symbol according to described image difference
Value changes first station symbol according to the difference pixel point value, obtains the second station symbol.
Screen interception module 75, for intercepting the screen picture for including the second station symbol in current screen predeterminable area；
Image candidate module 76, for after getting current screen picture, intercepting the image in multiframe predeterminable area
And accumulate, obtain station symbol candidate image；
Image separation module 77, after being split the background of station symbol candidate image and station symbol, according to rising for station symbol
Isolate the frame image comprising the second station symbol in the position begun and terminate ranks.
In one embodiment, as shown in figure 8, the position determination module 72 specifically includes：
Images match submodule 721, for by the First target the first row pixel point value with it is described include second
One frame image of target is matched, and judging whether being capable of successful match；
Region determination sub-module 722, for when successful match, by it is described include the second station symbol a frame image in match
Successful first trip initial position of the region as the second station symbol, second is determined according to the first trip initial position of second station symbol
Mark region.
In one embodiment, as shown in figure 9, the station symbol generation module 74 specifically includes：
Same district determination sub-module 741, for by the First target pixel point value with it is described include the second station symbol
The one successful part of frame images match, the common region as the first station symbol and the second station symbol；
Difference acquisition submodule 742, for according to described image difference, obtaining described image difference in second station symbol
In pixel point value；
Station symbol acquisition submodule 743, for the common region and described image according to first station symbol and the second station symbol
Pixel point value of the difference in second station symbol generates the second station symbol.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (6)
1. a kind of processing method of approximation station symbol, which is characterized in that including：
Step A：According to First target image information, the pixel point value of each row of the first station symbol is obtained；
Step B：The pixel point value of First target the first row is matched with the frame image comprising the second station symbol, determines institute
State the second station symbol region；
Step C：In second station symbol region, include with described respectively by the pixel point value of First target other rows
One frame image of the second station symbol is matched, and determines the image difference of first station symbol and second station symbol；
Step D：The difference pixel point value that the first station symbol and the second station symbol are obtained according to described image difference, according to the difference picture
Vegetarian refreshments value changes first station symbol, obtains the second station symbol；
The step D is specifically included：
By in the First target pixel point value with it is described include the second station symbol a successful part of frame images match, as
The common region of first station symbol and the second station symbol；
According to described image difference, pixel point value of the described image difference in second station symbol is obtained；
According to the pixel of the common region and described image difference of first station symbol and the second station symbol in second station symbol
Point value generates the second station symbol.
2. the processing method of approximation station symbol as described in claim 1, which is characterized in that further include before the step A：
Step E：Intercept the screen picture for including the second station symbol in current screen predeterminable area；
Step F：After getting current screen picture, the image in multiframe predeterminable area and accumulation are intercepted, station symbol is obtained and waits
Select image；
Step G：After the background of station symbol candidate image and station symbol are split, according to the position of the starting and ending ranks of station symbol
Isolate the frame image for including the second station symbol.
3. the processing method of approximation station symbol as described in claim 1, which is characterized in that the step B is specifically included：
By the First target the first row pixel point value with it is described include that a frame image of the second station symbol matches, judgement is
It is no being capable of successful match；
When successful match, using it is described include the second station symbol a frame image in successful match region as the head of the second station symbol
Start of line position determines the second station symbol region according to the first trip initial position of second station symbol.
4. a kind of processing unit of approximation station symbol, which is characterized in that including：
Pixel acquisition module, for according to First target image information, obtaining the pixel point value of each row of the first station symbol；
Position determination module, for carrying out the pixel point value of First target the first row and the frame image comprising the second station symbol
Matching, determines second station symbol region；
Difference determining module is used in second station symbol region, by the pixel point value point of other rows of First target
Not with it is described include that a frame image of the second station symbol is matched, determine the image difference of first station symbol and second station symbol
It is different；
Station symbol generation module, the difference pixel point value for obtaining the first station symbol and the second station symbol according to described image difference, root
First station symbol is changed according to the difference pixel point value, obtains the second station symbol；
The station symbol generation module specifically includes：
Same district determination sub-module, for by the First target pixel point value with it is described include the second station symbol a frame image
The part of successful match, the common region as the first station symbol and the second station symbol；
Difference acquisition submodule, for according to described image difference, obtaining picture of the described image difference in second station symbol
Vegetarian refreshments value；
Station symbol acquisition submodule is used for common region and described image difference according to first station symbol and the second station symbol in institute
The pixel point value in the second station symbol is stated, the second station symbol is generated.
5. the processing unit of approximation station symbol as claimed in claim 4, which is characterized in that further include：
Screen interception module, for intercepting the screen picture for including the second station symbol in current screen predeterminable area；
Image candidate module, for after getting current screen picture, intercepting the image in multiframe predeterminable area and accumulation,
Obtain station symbol candidate image；
Image separation module, after being split the background of station symbol candidate image and station symbol, according to the starting of station symbol and knot
Isolate the frame image comprising the second station symbol in the position of Shu Hanglie.
6. the processing unit of approximation station symbol as claimed in claim 4, which is characterized in that the position determination module is specifically wrapped
It includes：
Images match submodule, for by the First target the first row pixel point value with it is described include the second station symbol a frame
Image is matched, and judging whether being capable of successful match；
Region determination sub-module, for when successful match, by it is described include the second station symbol a frame image in successful match
First trip initial position of the region as the second station symbol determines the second station symbol place according to the first trip initial position of second station symbol
Region.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102446272A (en) * | 2011-09-05 | 2012-05-09 | Tcl集团股份有限公司 | Method and device for segmenting and recognizing station caption as well as television comprising device |
| CN103020650A (en) * | 2012-11-23 | 2013-04-03 | Tcl集团股份有限公司 | Station caption identifying method and device |
| CN103634653A (en) * | 2013-11-06 | 2014-03-12 | 小米科技有限责任公司 | Station caption identification method, station caption identification device and TV (Television) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446272A (en) * | 2011-09-05 | 2012-05-09 | Tcl集团股份有限公司 | Method and device for segmenting and recognizing station caption as well as television comprising device |
| CN103020650A (en) * | 2012-11-23 | 2013-04-03 | Tcl集团股份有限公司 | Station caption identifying method and device |
| CN103634653A (en) * | 2013-11-06 | 2014-03-12 | 小米科技有限责任公司 | Station caption identification method, station caption identification device and TV (Television) |
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