The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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A Packet-Loss Resilient Packetization and Associated Video Coding Methods for the Internet Video Transmission

인터넷 동영상 전송을 위한 패킷손실에 강인한 패킷화 및 동영상부호화 기법

  • 유국열 (영남대학교 전자정보공학부)
  • Published : 2005.11.01
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Abstract

In this paper we propose a video coding method and associated packetization and decoding methods for error resilient transmission over the Internet. The proposed method re-organizes the input image into several mutually similar subimages. For this case, if the one of the subimage is lost in the network, the lost one is recovered by the proposed error concealment method which uses the correctly received other subimages. The performance of the proposed method is confirmed by the empirical results. The proposed method is not limited to the Internet communications but is applicable to the other packet-based networks.

본 논문에서는 인터넷을 통해서 압축된 동영상을 패킷 손실에 강인하게 전송하기 위한 부호화 방식을 제안하고, 이를 위한 패킷화 방식 및 복호화 방식을 제안하였다. 제안 방식은 입력 영상을 효과적으로 재구성하여 부호화 및 패킷화를 수행하여, 한 개의 영상에 해당하는 일부 패킷이 네트워크에서 유실되었을 경우에 올바르게 수신된 패킷내에 있는 영상 데이터를 통해서 복호화단에서 효율적으로 오류를 은닉하는 방식을 제시하였다. 제안 방식을 통해서 다양한 패킷 손실율에 대해서 제안 방식의 효율성을 검증하였다. 제안 방식은 인터넷에만 국한되지 않고, 다양한 형태의 패킷망에서 효과적인 동영상 전송 기법으로 사용될 수 있다.

Keywords

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