Multiple description coding high-quality edge reconstruction method based on spatial downsampling

A multi-description coding, high-quality technology, applied in the field of high-quality edge reconstruction of multi-description coding based on spatial downsampling, can solve the problems of network congestion, channel interference, random bit errors of wireless channels, etc., achieve good reconstruction effect, improve reconstruction quality, the effect of improving video quality

Active Publication Date: 2020-08-07
HUAQIAO UNIVERSITY
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still phenomena such as network congestion, channel interference, random bit errors and burst errors of wireless channels in the Internet.

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
  • Multiple description coding high-quality edge reconstruction method based on spatial downsampling
  • Multiple description coding high-quality edge reconstruction method based on spatial downsampling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] see figure 1 As shown, in order to solve the problem of poor video quality of edge decoding of existing multi-description video coding, the present invention provides a high-quality edge reconstruction method of multi-description coding based on spatial downsampling, and the specific steps are as follows:

[0033] Step S1: Making Dataset Phase

[0034] Step S11: Select videos with multiple resolutions and multiple scenes, and divide each frame of video image into two descriptions through spatial downsampling;

[0035] Step S12: Encoding by the original HEVC encoder under the setting of the quantization parameter QP value;

[0036] Step S13: Pack the two described code streams separately and transmit them through different channels;

[0037] Step S14: Decoding by an original HEVC decoder, using the decoded video sequence and the corresponding original video as a training set, wherein the decoded video sequence is used as training data, and the corresponding original vi...

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

The invention provides a multiple description coding high-quality edge reconstruction method based on spatial downsampling, which comprises the following steps: making a data set: selecting a video, dividing the video into two descriptions through spatial downsampling, coding and decoding the video under the setting of a quantization parameter QP value, and taking the decoded video and a corresponding original video as a training set; and training a SD-VSRnet network: taking every five frames of the video as an input of the network, sequentially performing feature extraction, high-frequency detail recovery and pixel rearrangement, then performing jump connection with an input intermediate frame to obtain reconstructed video frames, and performing frame-by-frame reconstruction to obtain a final reconstructed video, thereby realizing training of the SD-VSRnet network. According to the method provided by the invention, a multiple description coding high-quality edge reconstruction data set suitable for space downsampling is made, in addition, a video super-resolution neural network is adopted to separately test four QP values, and the edge decoding video reconstruction quality of different compression degrees can be effectively improved.

Description

technical field [0001] The invention relates to the field of video coding and decoding, in particular to a method for high-quality edge reconstruction of multiple description coding based on spatial downsampling. Background technique [0002] With the advancement of the fifth-generation mobile communication network and the popularization of Gigabit WIFI, the Internet and wireless channels have become the main transmission channels for digital video. However, there are still phenomena such as network congestion, channel interference, random bit errors and burst errors of wireless channels in the Internet. Therefore, it is very important to study video coding with error-tolerant coding ability. [0003] In the field of error-tolerant coding, multiple description video coding (Multiple Description Coding, MDC) is a kind of error-tolerant coding method that can effectively solve the problems of video quality degradation caused by information loss, bit errors and delays in wirel...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/39H04N19/132H04N19/59H04N19/124H04N19/61
CPCH04N19/39H04N19/132H04N19/59H04N19/124H04N19/61
Inventor 陈婧林琦曾焕强朱建清蔡灿辉
Owner HUAQIAO UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap