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Video data input method, video data output method, video data input device and video data output device

A technology of video data and video frame data, applied in the video field, can solve problems such as motion vector errors, achieve the effects of reducing errors, flexible compression ratio, and reducing error transmission

Active Publication Date: 2016-07-06
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the current intra-frame prediction, the block to be compressed needs to be generated by relying on the surrounding blocks to be compressed, and the error between the blocks to be compressed will be transmitted, which will make the motion vector error larger

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  • Video data input method, video data output method, video data input device and video data output device
  • Video data input method, video data output method, video data input device and video data output device

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Embodiment Construction

[0061] In order to make the above objects, features and advantages of the present application more obvious and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0062] One of the core concepts of the embodiment of the present application is to divide the video frame data into multiple blocks to be compressed, divide the pixels in a block to be compressed into groups with different priorities, and divide the pixels of different groups in the block to be compressed according to The packets with higher priority among the blocks to be compressed are compressed, and at the same time, the blocks to be compressed are numbered. During compression, different compression ratios can be set for each block to be compressed, and indexes are performed according to the numbers of the blocks to be compressed.

[0063] refer to figure 1 , showing a flow chart of the steps of an e...

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Abstract

The embodiment of the invention provides a video data input method comprising the following steps: acquiring to-be-processed video frame data; segmenting the to-be-processed video frame data into a plurality of independent to-be-compressed blocks, and numbering the to-be-compressed blocks; scanning each to-be-compressed block according to the serial number, grouping pixel points in each to-be-compressed block while scanning each to-be-compressed block, thereby obtaining groups with different priorities; setting compression ratios for the to-be-compressed blocks; for the pixel points of different groups in one to-be-compressed block, orderly performing compression with the corresponding compression ratio according to a descending order of the priorities of the groups to generate a compressed code stream; and inputting the compressed code stream, the serial number of the to-be-compressed block corresponding to the compressed code stream and the compression ratio of the to-be-compressed block corresponding to the compressed code stream into a compressed code stream cache. In the embodiment of the invention, when decompressing the compressed code stream generated through compression, decompression is carried out according to the pixel points in the same to-be-compressed block, and thus, random access to the to-be-compressed blocks is realized.

Description

[0001] The patent application of the present invention is a divisional application of the Chinese invention patent application with the filing date of January 7, 2016, the application number of 2016100084326, and the title of "a video data processing method and device". technical field [0002] The present application relates to the field of video technology, in particular to a video data input method, a video data output method, a video data input device and a video data output device. Background technique [0003] In recent years, people's subjective demand for high-quality visual enjoyment and the objective conditions of the rapid development of semiconductor technology have jointly promoted the vigorous development of the UHD TV industry. However, due to the limitation of the bandwidth of the current transmission system, UHD TV programs can only be transmitted at a lower frame rate. At the same time, the refresh rate of large-screen display devices has been greatly impro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/176H04N19/186H04N19/129
CPCH04N19/129H04N19/176H04N19/186
Inventor 刘卫东何园园
Owner HISENSE VISUAL TECH CO LTD
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