Perceptual rate control algorithms for low bit-rate video coding

Shih Cheng Chang, Jar Ferr Yang

Research output: Contribution to journalArticle

Abstract

In this paper, a new rate control scheme based on human visual perception is proposed to enhance the visual image quality of very low bit-rate video transmission. With weighted DCT coefficients, the proposed rate control scheme can be easily designed with considerations of both the human visual system and skin enhancement in mind, to achieve a higher visual image quality for human perception. In comparison to the test model 8 (TMN8), which encodes the bits with optimal variance attribution, the proposed coding control scheme is designed to achieve the optimal visual power ascription. Simulation results demonstrate that the proposed coding control scheme encodes the same number of frames with nearly the same PSNR but achieves better visual quality than the TMN8 under the same bit rate constraints.

Original languageEnglish
Pages (from-to)317-325
Number of pages9
JournalJournal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an
Volume25
Issue number3
DOIs
Publication statusPublished - 2002 Jan 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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