A New Seamless Bitstream Switching Scheme for H.264 Video Adaptation with Enhanced Coding Performance

In this paper, we propose a new seamless bitstream switching scheme to improve the coding performance ofH.264 SP-frames for rate adaptation. Our method removes one of the two requantization blocks in the SP-frame encoders so as to significantly improve coding performance. The seamless switching property of SP-frames is retained by properly restructuring the primary and secondary switching frame codecs. Experimental results show that our proposed scheme achieves close coding performance to that of regular H.264 P-frames and significantly better performance than that of SP-frames. The proposed method also provides the advantage ofusing a single secondary switching bitstream for both switching-up and switching-down processes.

• Type: Conference
• Year: 2006
• Where: ICIP
• Authors: Shih-Ming Hsu, Chia-Wen Lin, I-Hsien Lee
• Keywords: Bitstream Switching Scheme, Close Coding Performance, ICIP 2006, Image Processing, Seamless Switching Property, Secondary Switching Bitstream, Secondary Switching Frame