Decoding method and device for video data compressed code stream and encoding method and device for video data

A technology of video data and compressed code stream, applied in the field of data processing, can solve problems such as low efficiency

Pending Publication Date: 2017-12-15
TONGJI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method and device for decoding compressed video data streams and encoding video data

Method used

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  • Decoding method and device for video data compressed code stream and encoding method and device for video data
  • Decoding method and device for video data compressed code stream and encoding method and device for video data
  • Decoding method and device for video data compressed code stream and encoding method and device for video data

Examples

Experimental program
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Example Embodiment

[0055] Example 1

[0056] In this embodiment, a decoding method of video data compression code stream is provided, figure 1 It is a flowchart of a method for decoding a video data compression code stream according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0057] Step S102, parse the video data compression code stream to obtain sampling format information and / or decoding method information;

[0058] Step S104, according to the sampling format information and / or decoding mode information, among the predetermined multiple sampling formats and decoding modes, select the first sampling format and the decoding mode corresponding to the first sampling format;

[0059] Step S106, the decoded block is decoded using the first sampling format and the corresponding decoding manner of the first sampling format.

[0060] Through the above steps, the sampling format and corresponding decoding method are selected among the predeter...

Example Embodiment

[0094] Example 2

[0095] This embodiment also provides a video data compression code stream decoding device and a video data encoding device. The device is used to implement the above-mentioned embodiments and preferred implementations, and what has been explained will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware with predetermined functions. Although the devices described in the following embodiments are preferably implemented by software, hardware or a combination of software and hardware is also possible and conceived.

[0096] image 3 It is a structural block diagram of a decoding device for video data compression code stream according to an embodiment of the present invention, such as image 3 As shown, the device includes:

[0097] The parsing module 30 is used for parsing the video data compression code stream to obtain sampling format information and / or decoding method information;

[0098] The selection module 32...

Example Embodiment

[0104] Example 3

[0105] This embodiment is an optional embodiment of the present invention, and is used to supplement and explain in detail the solutions of this application:

[0106] In order to solve this problem in the compression of a data set composed of a mixture of content with multiple characteristics, this embodiment provides a data compression method that uses multiple (ie, two or more) sampling formats and corresponding encoding methods. And device: data set and codec block have K (K> 1) Versions with K different sampling formats, corresponding to K sets of encoding and decoding methods; when encoding and decoding a codec block, select one of the K versions to use the corresponding encoding and decoding method for encoding decoding.

[0107] The primary technical feature of this embodiment is to use multiple sampling formats (ie multiple data versions with different sampling formats) and one of the corresponding encoding and decoding methods to encode and decode a codec...

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Abstract

The invention provides a decoding method and device for video data compressed code stream and an encoding method and device for video data. The decoding method for the video data compressed code stream comprises the steps of: parsing the video data compressed code stream, and acquiring sampling format information and/or decoding mode information; according to the sampling format information and/or the decoding mode information, selecting a first sampling format and a decoding mode corresponding to the first sampling format from various preset sampling formats and decoding modes; and carrying out decoding on decoding blocks in the first sampling format and in the decoding mode corresponding to the first sampling format. By the decoding method and device and the encoding method and device, which are provided by the invention, the technical problem of excessively low efficiency when a single sampling format and a single decoding mode are adopted to carry out decoding in the related art is solved.

Description

technical field [0001] The present invention relates to the field of data processing, in particular to a method and device for decoding video data compression code streams and encoding video data. Background technique [0002] As human society enters the era of big data, cloud computing, mobile computing, cloud-mobile computing, ultra-high-definition (4K) and ultra-high-definition (8K) video image resolution, 4G / 5G communication, and virtual reality, all kinds of data , including big data, image data, and video data, ultra-high compression ratio and extremely high-quality data compression has become an indispensable technology. [0003] A dataset is a collection of data elements (eg, bytes, bits, pixels). When performing data compression encoding (and corresponding decoding) on ​​a data set (for example: a file, a frame image, a video sequence) arranged in a certain shape and with a certain number of elements (that is, with a certain sampling format), usually the This data...

Claims

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Application Information

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IPC IPC(8): H04N19/176H04N19/186H04N19/132H04N19/70H04N19/503H04N19/593H04N19/184
CPCH04N19/132H04N19/176H04N19/184H04N19/186H04N19/503H04N19/593H04N19/70
Inventor 林涛李明吴钊吴平
Owner TONGJI UNIV
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