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2006
IEEE

Key Frame Extraction in 3D Video by Rate-Distortion Optimization

10 years 7 months ago
Key Frame Extraction in 3D Video by Rate-Distortion Optimization
3D video, which consists of a sequence of 3D mesh models, can provide detailed 3D information both in spatial and temporal domain. In this paper, a key frame extraction method has been developed to summarize 3D video by rate-distortion optimization. For this purpose, we introduce an effective feature vector extraction algorithm from 3D video. Prior to key frame extraction, shot detection is performed using the feature vectors as a pre-processing. Then, a rate-distortion (RD) curve is generated in each shot, where the locations of key frames are optimized. Lastly, R-D trade-off can be achieved by optimizing a cost function with a Lagrange multiplier. Our experimental results show the extracted key frames are compact and faithful to original 3D video.
Jianfeng Xu, Toshihiko Yamasaki, Kiyoharu Aizawa
Added 11 Jun 2010
Updated 11 Jun 2010
Type Conference
Year 2006
Where ICMCS
Authors Jianfeng Xu, Toshihiko Yamasaki, Kiyoharu Aizawa
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