ICIP 2006, Atlanta, GA

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Paper Detail

Session:Error Resilience
Time:Monday, October 9, 14:20 - 17:00
Presentation: Poster
Topic: Image & Video Communications: Error resilience / concealment
Authors: Yizhi Gao; Shanghai Jiaotong University 
 Jin Wang; Philips Research East Asia 
 Xin Chen; Philips Research East Asia 
 Daqing Zhang; Philips Research East Asia 
 Xiaokang Yang; Shanghai Jiaotong University 
 Jia Wang; Shanghai Jiaotong University 
Abstract: We present an object geometry based error resilience method. We extract object geometry through analyzing motion vector field at the encoder using the Iterative Self-Organizing Data Analysis Technique Algorithm. The extracted object geometry, in the form of an index map, is then embedded in the bitstream. At the decoder side, this information is exploited to recover motion vectors of corrupted macroblocks. The proposed method has been validated in MPEG2 codec in a standard-compliant way. Experimental results carried out on several sequences have shown that the proposed method outperforms two conventional temporal error concealment methods by an average PSNR gain of 0.9dB and 1.5dB, respectively.