CN102695092B - A kind of method promoting IPTV picture quality of television - Google Patents
A kind of method promoting IPTV picture quality of television Download PDFInfo
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- CN102695092B CN102695092B CN201210165672.9A CN201210165672A CN102695092B CN 102695092 B CN102695092 B CN 102695092B CN 201210165672 A CN201210165672 A CN 201210165672A CN 102695092 B CN102695092 B CN 102695092B
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Abstract
The present invention relates to television image treatment technology, it discloses a kind of method promoting IPTV picture quality of television, the method calls different image quality parameters respectively according to IPTV raw frames, code stream size and format change, reaches the object promoting IPTV video image image quality.The main points of its technical scheme can be summarized as: after detecting and entering IPTV pattern, first original image quality parameter is called, display raw frames, after receiving the order carrying out picture extension, then detect code stream size and the signal format of IPTV signal, for the mark/high-definition signal being less than 50Kbps code stream, the image quality parameter of low code stream is used to show; For the mark/high-definition signal of the code stream of more than 50Kbps, original image quality parameter is used to show.The present invention is applicable to the IPTV IPTV using general television set as display terminal.
Description
Technical field
The present invention relates to television image treatment technology, particularly a kind of method promoting IPTV picture quality of television.
Background technology
IPTV is that one utilizes broadband cable net, integrates the multiple technologies such as the Internet, multimedia, communication, provides the brand-new technology of the multiple interactive services comprising Digital Television to domestic consumer.User makes to enjoy IPTV service in two ways usually at home: 1, network machine top box+general television set; 2, general television set inside will be inserted in network machine top box.This two schemes all relates to the display terminal using television set as IPTV.
The video playback code stream of IPTV changes greatly, and the code flow of a lot of video is lower, larger with standard code stream signal difference.Usually play according to the picture size of original document, signal effect can accept; If played in full screen, because of code stream reason, can there is more vertical line and bright spot in signal effect.It is not good that user can be misinterpreted as effect of television set corresponding to IPTV to above-mentioned situation, regards as television video play quality poor, and the image quality therefore how promoting IPTV TV becomes the thing that user comparatively pays close attention to;
General television set corresponding to usual IPTV is when the signal code stream viewing for standard, and effect is better; But when watching for non-standard signal, automatically can not adjust the image quality effect of video; If complete machine is again according to the image quality process file that nonstandard code stream amendment is relevant simultaneously, larger impact can be had on the standard code stream image quality of this locality again; The IPTV of present stage is difficult to the image quality effect simultaneously taking into account standard and nonstandard code stream two states.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind of method promoting IPTV picture quality of television, takes into account the image quality effect of standard signal code stream and non-standard signal code stream simultaneously, improves television picture quality.
The present invention solves the problems of the technologies described above adopted technical scheme:
Promote a method for IPTV picture quality of television, comprise the following steps:
A. reading the code stream information of input, when carrying out decoding display, first calling original image quality parameter, display raw frames;
B. judge whether to receive the order expanded raw frames, if receive, then detect IPTV signal format, the size of rate bit stream, enters step c;
C. for the signal of mark/high-definition format being less than 50Kbps code stream, the image quality parameter of low code stream is used to show; For the signal of the mark/high-definition format of more than 50Kbps code stream, original image quality parameter is used to show.
Further, the method also comprises step:
D. when detecting that IPTV form is exited in TV broadcasting, then original image quality parameter is recovered.
Here we think that code stream is less than 50Kbps is low code stream.The method improvement such as the signal pattern noise of low code stream is more, edge blurry, if still use the image quality parameter of higher resolution just to there will be bright border, flicker etc., at this moment reduces the definition of image, change filtering parameter obtain the image quality parameter under low code stream.
The invention has the beneficial effects as follows: the method adopting software to separate, retains original complete machine image quality parameter constant, taken into account nonstandard signal simultaneously, promote television picture quality.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the lifting IPTV picture quality of television in the embodiment of the present invention.
Embodiment
The invention provides a kind of method promoting IPTV picture quality of television, be applicable to the IPTV IPTV using general television set as display terminal.The method calls different image quality parameters respectively according to IPTV raw frames, code stream size, reaches the object promoting IPTV video image image quality.
The principle that realizes of the present invention is: the signal of IPTV is all the signal source of high definition usually, and definition is very high, and signal effect is good, so the image quality parameter of back segment is the optimum efficiency ensureing that user watches, noise reduction arranges lower, promotes more to the details of image;
For the code stream image detail wretched insufficiency being less than 50Kbps, still use its original image quality parameter that image border can be caused to occur bright border, bright line, ghost image, details flicker etc. problem, so will promote noise reduction, will reduce definition, the edge of blurred picture, such user's viewing is got up can be very comfortable.
Therefore, the present invention is exactly according to different code streams, and adjustment image quality parameter, to ensure the view reception effect of image.
The method specifically comprises the steps:
A. complete machine software reads the code stream information of input, under current source, when complete machine software carries out decoding display, first calls original image quality parameter, display raw frames;
B. remote control part judges whether to receive the order expanded raw frames, if receive, then complete machine TV software detects IPTV signal format, and the size of rate bit stream, enters step c;
C. complete machine software is for the signal of the mark/high-definition format of the code stream of below 5Kbps, adopts the image quality parameter of low code stream to show; For more than 5Kbps, the signal of the mark/high-definition format of the code stream of below 50Kbps, uses the image quality parameter of low code stream to show; For the signal of the mark/high-definition format of the code stream of more than 50Kbps, original image quality parameter is used to show.
Below in conjunction with drawings and Examples, the solution of the present invention is further described:
For the IPTV of adapted LED26A4000i television set, existing for promoting its IPTV picture quality of television, to being amended as follows of whole set of television software:
Major cycle increases case N:
CHTV_GettimingParas (N, true, 0); //IPTV calls when starting to play, and uses the image quality parameter of low code stream;
CHTV_GettimingParas (N, false, 0); //IPTV calls when stopping, and recovers original image quality parameter;
As shown in Figure 1, first whether complete machine software detection enters IPTV pattern to specific implementation flow process, if detect that current television program play mode is for other form, then calling original image quality parameter shows; After detecting and entering IPTV pattern: it comprises the following steps:
1, the code stream for input reads information, and during display, first-selection enters raw frames, and raw frames calls original image quality parameter;
If raw frames is expanded by 2 users, complete machine TV software detects IPTV signal format, rate bit stream size, for the signal of the mark/high-definition format of the code stream of below 5Kbps, uses the image quality parameter of low code stream; For more than 5Kbps, be less than the signal of the mark/high-definition format of 50Kbps code stream, use the image quality parameter of low code stream; For the signal of the mark/high-definition format of more than 50Kbps code stream, use original image quality parameter;
3, complete machine TV software detects and exits IPTV pattern, recovers at once.
The actual result obtained shows:
The method more than adopting software to separate, retains original complete machine image quality parameter constant, has taken into account nonstandard signal simultaneously.
After adopting said method, by software upgrading in IPTV, confirm through scene: the video quality of problem film source is greatly improved, can accept; Test other film source, all can accept.
This scheme can not only promote the image quality effect of IPTV Web TV, also can promote the use of with on the television set of other functional modules, all have good effect to the improvement of visual image quality.
Claims (2)
1. promote a method for IPTV picture quality of television, it is characterized in that, comprise the following steps:
A. reading the code stream information of input, when carrying out decoding display, first calling original image quality parameter, display raw frames;
B. judge whether to receive the order expanded raw frames, if receive, then detect IPTV signal format, the size of rate bit stream, enters step c;
C. for the signal of mark/high-definition format being less than 50Kbps code stream, the image quality parameter of low code stream is used to show; For the signal of the mark/high-definition format of more than 50Kbps code stream, original image quality parameter is used to show.
2. a kind of method promoting IPTV picture quality of television as claimed in claim 1, is characterized in that, also comprise step:
D. when detecting that IPTV form is exited in TV broadcasting, then original image quality parameter is recovered.
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| CN201210165672.9A CN102695092B (en) | 2012-05-25 | 2012-05-25 | A kind of method promoting IPTV picture quality of television |
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| CN102695092B true CN102695092B (en) | 2015-08-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105791979A (en) * | 2014-12-26 | 2016-07-20 | 深圳Tcl数字技术有限公司 | Video file processing method and display device |
| CN109151571B (en) * | 2018-10-10 | 2021-03-02 | 四川长虹电器股份有限公司 | Method for improving image quality of streaming media player based on GStreamer frame in digital television |
| CN115914717B (en) * | 2022-11-03 | 2024-09-17 | 深圳创维－Rgb电子有限公司 | CUVA HDR video playing method, CUVA HDR video playing device, CUVA HDR video playing equipment and readable storage medium |
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