Efficient Real-Time Frame Layer Rate Control Technique for Low Bit Rate Video over WLAN

Yoon Kim, Jae Young Pyun, Hye Soo Kim, Sang Hee Park, Sung Jea Ko

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A real-time frame-layer rate control algorithm is proposed for low bit rate video coding over IEEE 802.11 wireless local area network (WLAN). The proposed rate control method performs bit allocation at the frame level to minimize the average distortion over an entire sequence as well as variations in distortion between frames. A new frame-layer rate-distortion model is derived, and a non-iterative optimization method is used for low computational complexity. The proposed algorithm produces low encoding time delay, and is suitable for real-time low-complexity video encoder. Experimental results indicate that the proposed control method provides better visual and PSNR performance than the existing TMN8 rate control method.

Original languageEnglish
Pages (from-to)621-628
Number of pages8
JournalIEEE Transactions on Consumer Electronics
Volume49
Issue number3
DOIs
Publication statusPublished - 2003 Aug

Keywords

  • Frame-layer rate control
  • Lagrangian multiplier
  • R-D model

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

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