Video coding method and device and video decoding method and device

A video coding and video decoding technology, applied in the field of video coding and decoding methods and devices, can solve problems such as blurred image display, distortion, and affecting user experience, so as to reduce broadband requirements, improve user experience, and solve display blur effects

Active Publication Date: 2017-05-24
SHENZHEN TCL DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a video encoding and decoding method and device, aiming to solve the technical problem of directly encoding video in the prior art, resulting in blurred or distorted image display after decoding, and affecting the user experience

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  • Video coding method and device and video decoding method and device
  • Video coding method and device and video decoding method and device
  • Video coding method and device and video decoding method and device

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Embodiment Construction

[0051] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The invention provides a video encoding method.

[0053] refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the video encoding method of the present invention;

[0054] In this embodiment, the video coding method includes:

[0055] Step S10, dividing the video frame into several non-overlapping picture blocks, and calculating the similarity of each picture block within a preset time period;

[0056]In this embodiment, the video frame is an image extracted from a video, and the video frame can be divided into m parts according to the width and n parts according to the height, that is, the entire video frame image is divided into m*n no parts Overlapping picture blocks, the preferred values ​​of m and n are both 2, of course, the values ​​of m and n can also be any value other...

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Abstract

The invention discloses a video coding method and a video decoding method. The video coding method comprises the steps of dividing video frames into a plurality of non-overlapped image blocks and calculating similarities of the image blocks in a preset time period; carrying out compression coding on the video frame images according to the similarities of the image blocks, thereby generating compressed code streams and adding the corresponding compression proportion information of the video frame images to the compressed code streams; and sending the compressed code streams to which the corresponding compression proportion information of the video frame images is added to a client, and decoding the compressed code streams by the client according to the received compressed code streams to which the corresponding compression proportion information of the video frame images is added. The invention also discloses a video coding device and a video decoding device. According to the methods and the devices, the video transmission bandwidth demand can be reduced, and the displayed images satisfy the eye demand well.

Description

technical field [0001] The present invention relates to the technical field of video processing, in particular to a video encoding and decoding method and device. Background technique [0002] As hardware equipment technology and user experience requirements are getting higher and higher, the resolution of video images is also getting higher and higher. At present, the resolution of TV program signals on the market is gradually increasing from HD, FHD, 4K and even 8K, so the requirements for TV hardware equipment and signal transmission bandwidth are also correspondingly increased. [0003] At present, there are many ways to transmit digital TV video signals, such as coaxial cable transmission, Internet transmission, and satellite transmission. Each transmission path has a certain bandwidth limit. For high-resolution video signals, such as 4K signals, mainstream TV products on the market already support 4K video decoding and 4K screen display. too high. Taking Internet t...

Claims

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Application Information

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IPC IPC(8): H04N19/46H04N19/176H04N19/44H04N19/85
CPCH04N19/176H04N19/44H04N19/46H04N19/85
Inventor 全浩伟
Owner SHENZHEN TCL DIGITAL TECH CO LTD
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