Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-dimentional scale rate control method of network video coder

A rate control and multi-dimensional scale technology, applied in the field of video coding, can solve problems such as large fluctuations, obvious block effects, and unsatisfactory subjective image quality, and achieve good scalability, compatibility, and applicability

Inactive Publication Date: 2005-11-09
SHANGHAI JIAO TONG UNIV
View PDF0 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This code rate control mechanism leads to unsatisfactory subjective image quality, large fluctuations and obvious block effects, and it is impossible to adjust the bandwidth changes of multiple heterogeneous networks (Internet, mobile communication network, broadcast network) and the processing capacity of user decoders.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-dimentional scale rate control method of network video coder
  • Multi-dimentional scale rate control method of network video coder
  • Multi-dimentional scale rate control method of network video coder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The following describes the implementation in detail in conjunction with the accompanying drawings.

[0021] Since the network video service involves a wide range of business models such as Internet TV, videophone, conference TV, and video-on-demand, the existing independent multi-heterogeneous network, including the Internet, mobile communication network, and broadcasting network, has become an integrated channel, and different services Quality assurance, different access channel bandwidths, different terminal processing capabilities, different application service requirements, etc., all make the bit rate control mechanism based on the quantization step adjustment in the existing complex video encoder rigid and in a dilemma. At present, relaying is often performed through transcoding processing of different network nodes in the service transmission channel. The structural expansion and resource adaptability of the video encoder have become the key issues that need to b...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention relates to a network video encoder multidimensional code rate control method. The image control unit of an input video sequence containing macroblock strips, image frames or image set is divided into different dimensions of set spaces according to the time domain, space domain, time domain transformation, space domain, time domain transformation, space domain transformation and space-time domain transformation, a code rate control unit transmits the time-varying state of band-width, the occupation degree of a buffer zone and resource and process ability of multi-access terminal based on the multiple element isomeric network channels to carry out variable bit rate encode of the divided set space to match with the current video encoder resource, or network transmission code rate, the process ability of the receive end and the decoder, the video decoder reconstructs related multidimensional images to display image sequence based on the grammar ID plugged by received stream.

Description

technical field [0001] The present invention relates to a control method in the technical field of video encoding, in particular to a network video encoder multi-dimensional network video encoder that can be applied to constant rate and variable rate data transmission occasions in multiple integrated heterogeneous networks and multiple access environments. Standard rate control method. technical background [0002] At present, the common digital TV coding technology is MPEG-2 technology formulated by MPEG (Motion Picture Experts Group), which is described by ISO / IEC13818 file; the commonly used network video coding technology is MPEG-4 technology, which is described by ISO / IEC14496 file describe. These files only stipulate the grammatical specifications that the code stream compiled by the video encoder must comply with. It includes hierarchical structures such as image groups, image frames, macroblock strips, macroblocks, and blocks, among which the image frames are hierar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N7/24
Inventor 熊红凯宋利孙军余松煜周军
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com