A Study on Priority-Based Scalable Coding (第3回International Workshop on Advanced Image Technology(IWAIT2000)〔英文〕)

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概要

• 論文の詳細を見る

• Recently, the concept of object scalability that also takes the contents of pictures into account unlike conventional scalability, has been proposed in MPEG-4. Object scalability in MPEG-4, however, assumes a VOP which requires the definition of shapes, so that it is not applicable to conventional coding schemes such as MPEG-2. This paper proposes a method of object scalable coding that can be adopted in these conventional block-based coding schemes. This method is based on SNR scalability, and it realizes scalability by differently controlling quantization on prioritized and non-prioritized parts. The bit-stream is compatible with SNR scalability, and for the enhancement layer picture, a similar SN ratio to that in normal SNR scalability can be obtained.

• 一般社団法人電子情報通信学会の論文
• 2001-02-01

著者

• Wada Masahiro

  Visual Communications Laboratory Kddi R&d Laboratories Inc.

• Kawada Ryoichi

  Visual Communications Laboratory Kdd R&d Laboratories

• Kawada Ryoichi

  Visual Communications Lab. Kddi R & D Laboratories Inc.

• Matsumoto Shuichi

  Visual Communications Laboratory Kdd R&d Laboratories

• Koike Atsushi

  Visual Communications Lab. Kddi R & D Laboratories Inc.

• Koike Atsushi

  Visual Communications Laboratory Kdd R&d Laboratories

• Wada Masahiro

  Visual Communications Laboratory KDD R&D Laboratories

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• A Study on Priority-Based Scalable Coding (第3回International Workshop on Advanced Image Technology(IWAIT2000)〔英文〕)

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