CN105025361A - Real-time station caption eliminating method - Google Patents
Real-time station caption eliminating method Download PDFInfo
- Publication number
- CN105025361A CN105025361A CN201510455029.3A CN201510455029A CN105025361A CN 105025361 A CN105025361 A CN 105025361A CN 201510455029 A CN201510455029 A CN 201510455029A CN 105025361 A CN105025361 A CN 105025361A
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- China
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- pixel
- station symbol
- station caption
- station
- control information
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000004927 fusion Effects 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
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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
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
-
- 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
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47205—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for manipulating displayed content, e.g. interacting with MPEG-4 objects, editing locally
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Studio Circuits (AREA)
Abstract
The invention discloses a real-time station caption eliminating method, comprising the steps as follows: 1) manually marking station caption of an original video, and marking a station caption pixel, the line where the previous background pixel of the station caption is located, and pixel points of the station caption, and setting the station caption pixel control information according to the marked station caption pixel, the line where the previous background pixel of the station caption is located, and pixel points of the station caption; 2) reading the station caption pixel control information in an FPGA cache; 3) reading the station caption pixel control information from the FPGA cache by using the line as a unit while collecting the effective data of the video information; 4) reading the filling material according to the station caption pixel control information, and filling the pixel where the station caption is located with the read filling material and outputting; 5) directly outputting the pixel of the position where the station caption is not located; 6) repeating the steps 2), 3), 4) and 5) until the video output is finished. The method of the invention could eliminate the station caption in real time in a video collecting process, and the visual effect of the video is good after the station caption is eliminated.
Description
Technical field
The invention belongs to image processing field, relate to a kind of station symbol removing method in real time.
Background technology
Often need to eliminate the station symbol in former video at network direct broadcasting with when relaying.Current major part is all come by some Video editing software, generally can be summarized as following several method: one is cutting method, directly video pictures is dismissed in proportion the part of station symbol, and this Measures compare is stiff, and very large to the destructiveness of picture; Two is color lump shade methods, and get the position that one piece of energy covering station target pure color block imports station symbol in video, play the object of blocking station symbol, this method, while blocking station symbol, has also blocked partial video information; Three is mosaic filter method, gets outside material and blocks station symbol, then carry out mosaic or Fuzzy Processing, this method effect and method two similar, fewer than former video partial video information.Four is the image repair methods based on partial differential equation (PDE), the region (station symbol region) needing to repair need be specified, by the information of the isopleth outside of zone boundary to be repaired along consistency profiles to being diffused on middle pixel to be repaired, this method can make channel logo position pixel and surrounding video information well merge, extraordinary visual effect can be realized, but the method calculates unstable, and repair time is relatively long, cannot accomplish real-time operation.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, provide a kind of station symbol removing method in real time, the elimination completing station symbol that the method can be real-time in the process of video acquisition, and eliminate the good visual effect of station symbol rear video.
For achieving the above object, real-time station symbol removing method of the present invention comprises the following steps:
1) station symbol handmarking is carried out to former video, mark station symbol be expert at and the pixel of station symbol, according to the station symbol marked to be expert at and the pixel of station symbol arranges the control information of station symbol pixel, the control information of described station symbol pixel comprises station symbol pixel column Warning Mark, station symbol pixel Warning Mark and fills material position indicator;
2) by the station symbol pixel control information write FPGA buffer memory in a frame video information;
3) when collecting the row sync period of a described frame video information, from FPGA buffer memory, the station symbol pixel column Warning Mark that this row is corresponding is read;
4) when station symbol pixel column Warning Mark indicates this row video information to have a station symbol, and when to collect a described frame video information be valid data, then synchronously read station symbol pixel Warning Mark corresponding to this row and fill material position indicator;
5) filling material is obtained according to filling material position indicator, and latch process is carried out to filling material, again filling material is filled into the station symbol location of pixels indicated by station symbol pixel Warning Mark corresponding to this row, finally exports the Pixel Information of this location of pixels;
6) export the Pixel Information of non-channel logo position, complete the output of a described frame video information;
7) repeat step 2), 3), 4), 5) and 6), till the video information of all frames has exported.
During frame synchronization, between row sync period or during previous frame video data transmission, the control information of station symbol pixel is read in FPGA buffer memory.
The pixel obtained after several background pixel carries out pixel fusion before filling the previous background pixel or channel logo position that material is channel logo position.
The present invention has following beneficial effect:
Real-time station symbol removing method of the present invention in use, first station symbol handmarking is carried out to former video, position coordinates and the packing material at station symbol place is produced again according to the result of mark, filling material is enable to can be good at merging with the video information around the pixel of channel logo position place, when filling material is filled into the position pixel at corresponding station symbol place, carry out synchronous with the station symbol pixel of the video information collected, the elimination completing station symbol real-time in the process of video acquisition, real-time is stronger.
Further, described filling material is the pixel obtained after several background pixel carries out pixel fusion before the previous background pixel of channel logo position or channel logo position, and after filling, former channel logo position pixel energy and surrounding video information merge preferably.
Embodiment
To be described in further detail the present invention below:
Real-time station symbol removing method of the present invention comprises the following steps:
1) station symbol handmarking is carried out to former video, mark station symbol be expert at and the pixel of station symbol, according to the station symbol marked to be expert at and the pixel of station symbol arranges the control information of station symbol pixel, the control information of described station symbol pixel comprises station symbol pixel column Warning Mark, station symbol pixel Warning Mark and fills material position indicator;
2) by the station symbol pixel control information write FPGA buffer memory in a frame video information;
3) when collecting the row sync period of a described frame video information, from FPGA buffer memory, the station symbol pixel column Warning Mark that this row is corresponding is read;
4) when station symbol pixel column Warning Mark indicates this row video information to have a station symbol, and when to collect a described frame video information be valid data, then synchronously read station symbol pixel Warning Mark corresponding to this row and fill material position indicator;
5) filling material is obtained according to filling material position indicator, and latch process is carried out to filling material, again filling material is filled into the station symbol location of pixels indicated by station symbol pixel Warning Mark corresponding to this row, finally exports the Pixel Information of this location of pixels;
6) export the Pixel Information of non-channel logo position, complete the output of a described frame video information;
7) repeat step 2), 3), 4), 5) and 6), till the video information of all frames has exported.
During frame synchronization, between row sync period or during previous frame video data transmission, the control information of station symbol pixel is read in FPGA buffer memory.Thus before video information and station symbol control information synchronous transmission, FPGA buffer memory obtains this frame and stablizes complete station symbol control data, when avoiding transmission of video valid data, station symbol control information data do not plan a successor, and can not transmit with video data synchronization.
The pixel obtained after several background pixel carries out pixel fusion before filling the previous background pixel or channel logo position that material is channel logo position.
It should be noted that, described FPGA can be replaced by ASIC, and the control information of station symbol pixel also can be other pixel control informations, such as, can make captions control information and caption information, is used to indicate the pixel needing to replace.
Claims (3)
1. a real-time station symbol removing method, is characterized in that, comprise the following steps:
1) station symbol handmarking is carried out to former video, mark station symbol be expert at and the pixel of station symbol, according to the station symbol marked to be expert at and the pixel of station symbol arranges the control information of station symbol pixel, the control information of described station symbol pixel comprises station symbol pixel column Warning Mark, station symbol pixel Warning Mark and fills material position indicator;
2) by the station symbol pixel control information write FPGA buffer memory in a frame video information;
3) when collecting the row sync period of a described frame video information, from FPGA buffer memory, the station symbol pixel column Warning Mark that this row is corresponding is read;
4) when station symbol pixel column Warning Mark indicates this row video information to have a station symbol, and when to collect a described frame video information be valid data, then synchronously read station symbol pixel Warning Mark corresponding to this row and fill material position indicator;
5) filling material is obtained according to filling material position indicator, and latch process is carried out to filling material, again filling material is filled into the station symbol location of pixels indicated by station symbol pixel Warning Mark corresponding to this row, finally exports the Pixel Information of this location of pixels;
6) export the Pixel Information of non-channel logo position, complete the output of a described frame video information;
7) repeat step 2), 3), 4), 5) and 6), till the video information of all frames has exported.
2. real-time station symbol removing method according to claim 1, is characterized in that, the control information of station symbol pixel is read in FPGA buffer memory during frame synchronization, between row sync period or during previous frame video data transmission.
3. real-time station symbol removing method according to claim 1, is characterized in that, the pixel obtained after several background pixel carries out pixel fusion before filling the previous background pixel or channel logo position that material is channel logo position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510455029.3A CN105025361B (en) | 2015-07-29 | 2015-07-29 | A kind of real-time station symbol removing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510455029.3A CN105025361B (en) | 2015-07-29 | 2015-07-29 | A kind of real-time station symbol removing method |
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| CN105025361A true CN105025361A (en) | 2015-11-04 |
| CN105025361B CN105025361B (en) | 2018-07-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611380A (en) * | 2015-12-23 | 2016-05-25 | 小米科技有限责任公司 | Video image processing method and device |
| CN105611386A (en) * | 2015-12-23 | 2016-05-25 | 小米科技有限责任公司 | Video picture processing method and device |
| CN106792153A (en) * | 2016-12-01 | 2017-05-31 | 腾讯科技（深圳）有限公司 | A kind of video labeling processing method and processing device |
| CN111010606A (en) * | 2019-12-12 | 2020-04-14 | 北京金山云网络技术有限公司 | Video processing method and device |
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| CN102281384A (en) * | 2011-07-11 | 2011-12-14 | 成都索贝数码科技股份有限公司 | Method and device for obscuring abandoned image regions, and method and system for processing video |
| CN103051893A (en) * | 2012-10-18 | 2013-04-17 | 北京航空航天大学 | Dynamic background video object extraction based on pentagonal search and five-frame background alignment |
| CN103618905A (en) * | 2013-12-09 | 2014-03-05 | 清华大学深圳研究生院 | Content drawing method for station caption area in video |
-
2015
- 2015-07-29 CN CN201510455029.3A patent/CN105025361B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281384A (en) * | 2011-07-11 | 2011-12-14 | 成都索贝数码科技股份有限公司 | Method and device for obscuring abandoned image regions, and method and system for processing video |
| CN103051893A (en) * | 2012-10-18 | 2013-04-17 | 北京航空航天大学 | Dynamic background video object extraction based on pentagonal search and five-frame background alignment |
| CN103618905A (en) * | 2013-12-09 | 2014-03-05 | 清华大学深圳研究生院 | Content drawing method for station caption area in video |
Non-Patent Citations (1)
| Title |
|---|
| WEI-QI YAN: "Automatic video logo detection and removal", 《MULTIMEDIA SYSTEMS》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105611380A (en) * | 2015-12-23 | 2016-05-25 | 小米科技有限责任公司 | Video image processing method and device |
| CN105611386A (en) * | 2015-12-23 | 2016-05-25 | 小米科技有限责任公司 | Video picture processing method and device |
| CN106792153A (en) * | 2016-12-01 | 2017-05-31 | 腾讯科技（深圳）有限公司 | A kind of video labeling processing method and processing device |
| CN111010606A (en) * | 2019-12-12 | 2020-04-14 | 北京金山云网络技术有限公司 | Video processing method and device |
| CN111010606B (en) * | 2019-12-12 | 2022-02-15 | 北京金山云网络技术有限公司 | Video processing method and device |
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| CN105025361B (en) | 2018-07-17 |
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