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Video caching, splicing and conversion processing system and method

A conversion processing and video splicing technology, applied in the field of video processing, can solve problems such as loss of large module data, achieve the effect of avoiding data loss, solving video output instability factors, and ensuring high-quality output

Active Publication Date: 2021-04-06
西安思丹德信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Since the video output is output at the resolution of high-definition video, if the picture-in-picture and OSD are spliced ​​in before the standard-definition video is converted to high-definition video, and the entire image is enlarged, then the picture-in-picture and OSD will be displayed at the same time. It will also be enlarged, so that the output image is not the required video image, and the picture-in-picture becomes a 768*432 resolution image, and the OSD will lose large modules because it exceeds the range of video resolution. data

Method used

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  • Video caching, splicing and conversion processing system and method
  • Video caching, splicing and conversion processing system and method
  • Video caching, splicing and conversion processing system and method

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings, which are explanations rather than limitations of the present invention.

[0041] The video buffering, splicing and conversion processing system of the present invention includes: a video input module, a video buffering module, a standard-definition-to-high-definition video conversion module, a video splicing module, a high-definition video conversion to standard-definition module and a video output module.

[0042] SD is always output at 25 frames per second; HD is output at 25 frames per second or 30 frames per second.

[0043] Based on the video caching, splicing and conversion processing method of this system, the overall process is as follows: figure 1 shown, including the following steps:

[0044] Step 1, the video input module caches three different video source data and transmits them to the video cache module;

[0045] Step 2, if the background is SD, ...

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Abstract

The present invention provides video buffering, splicing and conversion processing system and method, step 1, the video input module transmits three different video sources to the video buffering module; step 2, if the background is standard definition, the video buffering module outputs the video source to the video standard definition The high-definition conversion module performs the background standard-definition to high-definition conversion operation, and outputs it to the video splicing module after completion; if the background is high-definition, the video cache module outputs the video source to the video splicing module; step 3, the video splicing module performs specified splicing of different video source data ; Step 4, output the spliced ​​high-definition video to external high-definition video; at the same time, convert the spliced ​​high-definition video to SD and output it to external SD. The invention ensures high-quality video output.

Description

technical field [0001] The invention relates to video processing, in particular to a video caching, splicing and conversion processing system and method. Background technique [0002] In today's society, video is almost indispensable to human society, so there are many requirements for video processing. In the case of different video sources (camera and OSD (on screen display)) input, one of the video sources is used as the background, and any video source can be selected as the picture-in-picture source, as well as characters or other signs that need to be displayed on the background ( OSD), all video sources need to be cached and spliced ​​according to the specified requirements, so that the human eye can observe the objects displayed in the video image. [0003] Since the video output is output at the resolution of high-definition video, if the picture-in-picture and OSD are spliced ​​in before the standard-definition video is converted to high-definition video, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/45H04N5/445H04N5/272H04N5/265H04N21/44H04N21/4402H04N21/431
CPCH04N5/265H04N5/272H04N5/45H04N21/42653H04N21/4316H04N21/44004H04N21/44016H04N21/440263H04N21/47H04N21/4856
Inventor 董斐
Owner 西安思丹德信息技术有限公司
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