VLSI-Oriented Motion Estimation Using a Steepest Descent Method in Mobile Video Coding(<Special Section>Low-Power System LSI, IP and Related Technologies)

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概要

• 論文の詳細を見る

• This paper describes a VLSI-oriented motion estimation algorithm using a steepest descent method (SDM) applied to MPEG-4 visual communication with a mobile terminal. The SDM algorithm is optimized for QCIF or CIF resolution video and VLSI implementation. The SDM combined with a subblock search method is developed to enhance picture quality. Simulation results show that a mean PSNR drop of the SDM algorithm processing QCIF 15 fps resolution video in comparison with a full search algorithm is -0.17 dB. Power consumption of a VLSI based on the SDM algorithm assuming 0.18μm CMOS technology is estimated at 2 mW. The VLSI attains higher picture quality than that based on the other fast motion estimation algorithm, and is applicable to mobile video applications.

• 2004-04-01

著者

• Miyama Masayuki

  Kanazawa University Graduate School Of Natural Science & Technology

• Miyama M

  Graduate School Of Natural Science And Technology Kanazawa University

• Yoshimoto Masahiko

  Mitsubishi Electric Corporation

• Imamura Kousuke

  The Dept. Of Electrical & Electronic System Kanazawa University

• Morita Yasuhiro

  Department Of Computer Science And Systems Engineering Kobe University

• MIYAKOSHI Junichi

  Kobe University

• Yoshimoto Masahiko

  System Lsi Development Center Mitsubishi Electric Corporation

• Yoshimoto Masahiko

  Faculty Of Engineering Kobe University

• MIYAKOSHI Junichi

  Faculty of Engineering, Kobe University

• MIYAMA Masayuki

  Faculty of Engineering, Kanazawa University

• IMAMURA Kousuke

  Faculty of Engineering, Kanazawa University

• HASHIMOTO Hideo

  Faculty of Engineering, Kanazawa University

• Yoshimoto M

  Department Of Computer Science And Systems Engineering Kobe University

• Hashimoto H

  The Dept. Of Electrical & Electronic System Kanazawa University

• Hashimoto Hideo

  The Dept. Of Electrical & Electronic System Kanazawa University

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