High performance error concealment algorithm by motion vector refinement for MPEG-4 video

—In this paper, a new error concealment algorithm by recursive motion vector refinement is proposed. The proposed method utilizes the top/bottom motion vectors of lost MB in current and reference frames and refines motion vectors recursively. Simulation results based on MPEG-4 codec present the superior subjective and objective performance of the proposed technique compared with conventional temporal concealment techniques.

• Type: Conference
• Year: 2005
• Where: ISCAS
• Authors: Ming-Chieh Chi, Mei-Juan Chen, Jia-Hwa Liu, Ching-Ting Hsu
• Keywords: ISCAS 2005, Motion Vectors, Refines Motion Vectors, Top/bottom Motion Vectors