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Author Chang Sun ♦ Hong-Jun Wang ♦ Hua Li
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2008
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Rate-distortion ♦ Video coding ♦ Humans ♦ Decoding ♦ Constraint optimization ♦ Data engineering ♦ Automatic voltage control ♦ Lagrangian functions ♦ Data compression ♦ Information science
Abstract Experiments have been conducted based on the reference coder JM12.2 of H.264/AVC. Simulation results show that the subjective qualities of the decoded frames are improved without compromising PSNR. Fig.1. blow shows the subjective performance of the proposed scheme for 'Foreman' sequence. We can easily find that the perceptual quality of the detailed region (such as the wrinkles on the facial area) is significantly improved by comparing the two encoded frames. However, the distortion increased in the background is much less visually noticeable. And we have also performed subjective evaluation by inviting 20 people to be human observers for our experiment. 17 of them said there is an obvious improvement in video quality.
Description Author affiliation: Shandong Univ., Jinan (Chang Sun; Hong-Jun Wang)
ISBN 9780769531212
ISSN 10680314
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2008-03-25
Publisher Place USA
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 260.57 kB
Page Count 1
Starting Page 546
Ending Page 546

Source: IEEE Xplore Digital Library