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Method for encoding video data stream based on group of pictures (gop)

A technology of video coding and picture group, which is applied in the direction of error correction/detection, coding, and coding components using block codes, which can solve problems such as meaninglessness and achieve the effect of optimizing response

Active Publication Date: 2021-02-09
VOGO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a process is almost pointless if the quality of the video stream is not guaranteed

Method used

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  • Method for encoding video data stream based on group of pictures (gop)
  • Method for encoding video data stream based on group of pictures (gop)
  • Method for encoding video data stream based on group of pictures (gop)

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Embodiment Construction

[0027] refer to figure 1 , the first data set consists of all the data of the group of pictures, the data set forms the local video stream to be transmitted before encoding the transmission error correction function. This data organization is well known in the field of video coding, as it is specifically defined by the MPEG standard. These groups of pictures, or GOPs, define the nature of the pictures produced by certain types of encoding and the order in which the pictures are arranged. The grouping of these pictures actually forms a certain series, which is repeated periodically in order to constitute the encoding of the video stream. There are thus pictures with intra coding I and pictures with predictive coding, the latter can be of two types: pictures P with predictive coding based on past images, and pictures B with bidirectional predictive coding. The picture P contains information about the difference from the picture I or the past picture P by motion prediction. Pi...

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Abstract

A method for encoding a video data stream based on a group of pictures (GOP) used in video encoding to define an order of arrangement of images using intra-coding as well as using predictive coding for generating visible images, including for use in Redundant transmission error correction means for transmissions over a wireless network controlled by a local data communication protocol. The video stream is composed of continuous data packets G, each packet G includes a first set M including the video data to be transmitted, and a second set including redundant data obtained through a redundancy algorithm. According to said method, said first set of data M consists of all said data of at least one Group of Pictures (GOP).

Description

technical field [0001] The invention relates to a method for encoding video data streams in order to enhance the reliability and quality of receiving these streams in a wireless digital network managed by a communication protocol of the WIFI type, for example. The stream in question is sent in multicast mode and originates from at least one transmitter which broadcasts it to a receiving device, which in this case is located within a relatively restricted perimeter such that it can take advantage of the mentioned The communication protocol operates and is designed to operate in a more localized environment. Said receiving device is then provided with at least one software application making it possible to process and view the received information. Background technique [0002] More specifically, the video data implemented by the present invention is based on the Group of Pictures (GOP) conventionally used in video coding, especially in the MPEG standard for compression, deco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/46H04N21/2381H04N21/2383H04N21/4363H04N19/177H04N19/65H03M13/03H04L1/00H04L29/06H04N21/236
CPCH04L1/004H04N21/236H04N21/23605H04N21/23611H04N21/2381H04N21/2383H04N21/43637H04N19/46H04N19/177H03M13/05H03M13/6356H04L1/0041H04N21/6332H04N21/8455H04N19/65H04L65/70H04L65/60H04L9/40H04N19/172H04N19/50
Inventor P·凯夫林C·卡尼欧D·德迪斯
Owner VOGO