CN101159838A - Method of improving video image display quality using separation processing - Google Patents
Method of improving video image display quality using separation processing Download PDFInfo
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- CN101159838A CN101159838A CNA2007101773276A CN200710177327A CN101159838A CN 101159838 A CN101159838 A CN 101159838A CN A2007101773276 A CNA2007101773276 A CN A2007101773276A CN 200710177327 A CN200710177327 A CN 200710177327A CN 101159838 A CN101159838 A CN 101159838A
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Abstract
The invention provides a method for improving audio image display quality via audio processing technology such as fields process, and is characterized in that the method includes the following steps: step 1, acquiring original interlaced scanning video data via a video image collection device; step 2, extracting top field and bottom field of each image frame of the original interlaced scanning video data to obtain fields video; and step 3, performing linear de-interlace treatment on the bottom field and the top field to obtain progressive scanning video image with the same resolution and doubled image frame rate. With the method, display quality of video image can be effectively improved and especially effect of moving video image can be greatly improved. The method has the advantages of general suitability, low cost, high video quality, continuous moving image, and colorful image.
Description
Technical field
The present invention relates to the video image communication technical field, particularly a kind of method that promotes dynamic video image display quality in the video communication, this method are intended to by using video image processing technologies such as another arena processing to promote the display quality of dynamic video image.
Background technology
At present, on the market existing video camera some be interlacing scan equipment; Simultaneously, video image adopts the frequency of 25/30 frame to show that limited to the display effect of moving image, these have all restricted the demand for experience of people to video effect mostly.For this reason, handle by video image being carried out the another arena, can effectively promote the display quality of video image under the little situation of cost expense, promote greatly and improve such as the picture quality with SD resolution, perhaps the image with high definition resolution rises to the image effect of clear and smooth more.This provides technological means for demand for experience and some application that definition is had relatively high expectations that people improve day by day.
Summary of the invention
The present invention is directed to the defective or the deficiency that exist in the prior art, provide a kind of another arena that utilizes to handle the method that promotes video image display quality, adopt this method can effectively promote the display quality of video image, especially can improve the effect of motion video image greatly, and it is low to have user cost, characteristics such as video quality height, moving image smoothness, image color enrich.
Technical conceive of the present invention is, utilizes the another arena to handle and linear technology such as deinterleave is improved to the progressive scanned video image that same resolution, frame per second double with interleaved video image, to play the effect that promotes video effect.
Technical scheme of the present invention is as follows:
Utilize the another arena to handle the method that promotes video image display quality, it is characterized in that may further comprise the steps:
Extract respectively the field, top and the field, the end of every two field picture of step 2. pair original interlaced video data, obtains the another arena video.
Further comprising the steps of:
The linearity processed video image that deinterleaves is carried out color space conversion, with the color information of further enhancing image; And with the video image after the color space conversion under the clock synchronization of high-resolution timer, be sent to display device by three grades of buffer technologys and show.
Described linearity deinterleaves and is meant the algorithm of interpolation arithmetic.
Handle described another arena, linearity deinterleaves and described color space conversion can be at PC, or realize on the dedicated processes chip.
Described PC is meant personal computer, and it comprises based on X86 framework or the desktop computer of Power PC processor, portable PC, notebook computer.
Described display device is meant display chip among the PC, independently special-purpose video card or external independent displaying output equipment.
Described high-resolution timer is to adopt high accuracy software or hardware regularly, is used for the synchronised clock of display video data.Technique effect of the present invention is as follows:
1. this method can effectively promote the display quality of video image, the video quality height, and sport video smoothness, image color enrich.
2. have general usability, user cost is relatively low.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present invention.
Fig. 2 is a YUV4:2:2 color format schematic diagram.
Fig. 3 is a YUV4:2:0 color format schematic diagram.
Fig. 4 is the application schematic diagram of the present invention in video communication system.
Embodiment
As shown in Figure 1, the present invention proposes a kind of method of utilizing video processing technique lifting video image display qualities such as another arena processing, interleaved video image frame per second is doubled and is improved as progressive scanned video image with resolution, play the effect that promotes video effect, especially can improve the effect of motion video image greatly.Operation principle following (video with HD video 1920 * 1080 is an example):
1. by video image acquisition equipment, for example, utilize interlacing scan camera acquisition data, obtain original interlaced video data.Be that 1920 * 1080i is an example with resolution among the present invention, color format is YV12, and frame per second is that the high clear video image of 25/30fps is an example.
2. the field, top and the field, the end of every two field picture of original interlaced video data are extracted respectively, obtain the another arena video.
3. carry out the processing that deinterleaves of end vertical linearity then, promptly obtain progressive image with the original image equal resolution by the interpolation arithmetic method; Carry out the processing that deinterleaves of top vertical linearity again, obtain progressive image with the original image equal resolution by interpolation arithmetic equally; The field, top that obtains and the image Alternation Display behind the interpolation arithmetic of field, the end are obtained progressive scanned video image with resolution, and the image frame per second doubles.Promptly obtaining resolution is 1920 * 1080p, and color format is YV12, and frame per second is the high clear video image of 50/60fps.
4. the processed video image that linearity deinterleaved carries out color space conversion (being converted to UYVY with color format by YV12 is example), and resolution and frame per second are constant, further strengthen the color information of image.
With the video image after the color conversion under the clock synchronization of high-resolution timer, be sent to and show that output equipment shows.
Described YV12 and UYVY are the color format under the YUV color space; Wherein YV12 is YUV4:2:0 plane (planar) form; UYVY is YUV4:2:2 packing (packed) form.
Described YUV is meant a kind of color space of standard, wherein " Y " expression brightness, and " U " and " V " represents colourity.
The video image of handling among Fig. 1 is 1920 * 1080i, the YV12 image, but in specific implementation process, can be other resolution, for example: 1280 * 720i, 720 * 576i, 704 * 576i, 640 * 480i, 352 * 288i etc., or the video image of other color format.
Described another arena is handled and is meant and handles respectively after the field, top of interleaved vision signal and field, end video taken apart; Described linearity deinterleaves and is meant linearity in the encoding and decoding algorithm that deinterleaves; Described linearity deinterleave and color space conversion all at PC, or realize on the dedicated processes chip; Described PC is meant personal computer, and it comprises based on the desktop computer of X86 framework or PowerPC processor, portable PC, notebook computer etc.; Described high-resolution timer is the synchronised clock when being used for display interface transmission data.
As shown in Figures 2 and 3, two kinds of sample format YUV4:2:2 that mentioned among the present invention and YUV4:2:0, its brightness (Y) and colourity (U, distribution situation V) is as follows:
1. for YUV4:2:2, chroma samples has only half of luma samples on every horizontal scan line, and on the bar number of scan line identical with brightness;
2. for YUV4:2:0, chroma samples has only half of luma samples on every horizontal scan line, and on the bar number of scan line, also has only half of brightness, and samples in U/V mode at interval, and this form also is that DVD/VCD goes up general saving format.
Color format YV12 and UYVY under the YUV color space of being mentioned among the present invention, its concrete form is as follows:
1.YV12 be YUV4:2:0 plane (planar) form, after promptly three components of YUV are pressed the YUV4:2:0 sampling, be stored in respectively in three arrays;
2.UYVY be YUV4:2:2 packing (packed) form, be after three components of YUV are sampled by YUV4:2:2, be stored in the array, and each component puts in order and is U0 Y0 V0 Y1 U2 Y2 V2 Y3..., wherein Y0, U0, V0 represent the YUV component of first pixel, Y1, U1, V1 represent the YUV component of second pixel, by that analogy.
Color format is converted to UYVY by YV12 described in the present invention, in fact needs to obtain the chroma samples of full line, and soon the chroma samples of two row obtain through the interpolation computing about U or the V.
The invention application example
The present invention can be applicable in video communication and the Video transmission system, makes video communication obtain better quality and experience.The whole process of video communication has comprised a plurality of links such as collection of video signal, compressed encoding, transmission, decoding and demonstration, and principle that the present invention realizes in video communication system and step are (as Fig. 4):
The field, top and the field, the end of every two field picture of step 2. pair original interlaced video data are carried out compressed encoding respectively and are handled, and, carry out field, an end compressed encoding and a top compressed encoding that is, obtain the video code flow of another arena compression;
The video code flow of step 4. pair another arena compression carries out decoding processing respectively, promptly, carry out the decoding of decoding of field, the end and top, obtain the another arena video, carrying out end vertical linearity then deinterleaves and handles and the processing that deinterleaves of top vertical linearity, with end field picture and top field picture Alternation Display, obtain progressive scanned video image with resolution, the image frame per second doubles.
Step 5. is carried out color space conversion with the linearity processed video image that deinterleaves, with the color information of further enhancing image;
The video image of step 6. after with color space conversion is sent to video card by three grades of buffer technologys and shows under the clock synchronization of high-resolution timer.
Should be pointed out that the above embodiment can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.Therefore, although this specification has been described in detail the present invention with reference to accompanying drawing, but, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the present invention, for example, the video image of handling in the accompanying drawing is 1920 * 1080i, the YV12 image, but in specific implementation process, can be other resolution, as 720 * 576; Or the video image of other color format, as RGB24, UVUY.And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the middle of the protection range of patent of the present invention.
Claims (7)
1. utilize the another arena to handle the method that promotes video image display quality, it is characterized in that may further comprise the steps:
Step 1. obtains original interlaced video data by video image acquisition equipment or interface;
Extract respectively the field, top and the field, the end of every two field picture of step 2. pair original interlaced video data, obtains the another arena video.
Step 3. is carried out the processing that deinterleaves of end vertical linearity then, promptly obtains progressive image with the original image equal resolution by the interpolation arithmetic method; The vertical linearity processing that deinterleaves in top obtains progressive image with the original image equal resolution by interpolation arithmetic equally; The field, top that obtains and the image Alternation Display behind the interpolation arithmetic of field, the end are obtained progressive scanned video image with resolution, and the image frame per second doubles.
2. the method that promotes video image display quality is handled in the another arena that utilizes according to claim 1, and its feature is further comprising the steps of:
The linearity processed video image that deinterleaves is carried out color space conversion, with the color information of further enhancing image; And with the video image after the color space conversion under the clock synchronization of high-resolution timer, be sent to display device by three grades of buffer technologys and show.
3. the method for utilizing the another arena handle to promote video image display quality according to claim 2 is characterized in that: described linearity deinterleave and described color space conversion all at PC, or realize on the dedicated processes chip.
4. the method that promotes video image display quality is handled in the another arena that utilizes according to claim 3, it is characterized in that: described PC is meant personal computer, and it comprises based on X86 framework or the desktop computer of Power PC processor, portable PC, notebook computer.
5. the method for utilizing the another arena handle to promote video image display quality according to claim 2 is characterized in that: described display device is meant display chip among the PC, independently special-purpose video card or external independent displaying output equipment.
6. the method for utilizing the linear processing lifting video image display quality that deinterleaves according to claim 2 is characterized in that: described high-resolution timer is to adopt high accuracy software or hardware regularly, is used for the synchronised clock of display video data.
7. the method that promotes video image display quality is handled in the another arena that utilizes according to claim 1, it is characterized in that: combine with the technology of another arena compression and decompression, can improve the picture quality in the video communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101773276A CN101159838A (en) | 2007-11-14 | 2007-11-14 | Method of improving video image display quality using separation processing |
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| CNA2007101773276A CN101159838A (en) | 2007-11-14 | 2007-11-14 | Method of improving video image display quality using separation processing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204242A (en) * | 2008-10-24 | 2011-09-28 | 惠普开发有限公司 | Method and system for increasing frame-display rate |
| CN101753951B (en) * | 2008-12-02 | 2013-03-20 | 中兴通讯股份有限公司 | Method for transmitting high-definition video conference images |
| CN108134938A (en) * | 2016-12-01 | 2018-06-08 | 中兴通讯股份有限公司 | Videoscanning mode detects, correcting method and video broadcasting method and device |
-
2007
- 2007-11-14 CN CNA2007101773276A patent/CN101159838A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204242A (en) * | 2008-10-24 | 2011-09-28 | 惠普开发有限公司 | Method and system for increasing frame-display rate |
| CN102204242B (en) * | 2008-10-24 | 2013-11-06 | 惠普开发有限公司 | Method and system for increasing frame-display rate |
| US9185339B2 (en) | 2008-10-24 | 2015-11-10 | Hewlett-Packard Development Company, L.P. | Method and system for increasing frame-display rate |
| CN101753951B (en) * | 2008-12-02 | 2013-03-20 | 中兴通讯股份有限公司 | Method for transmitting high-definition video conference images |
| CN108134938A (en) * | 2016-12-01 | 2018-06-08 | 中兴通讯股份有限公司 | Videoscanning mode detects, correcting method and video broadcasting method and device |
| CN108134938B (en) * | 2016-12-01 | 2021-08-06 | 中兴通讯股份有限公司 | Video scanning mode detection and correction method, video playing method and device |
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