TY - GEN
T1 - Region-of-interest-based bit-allocation scheme for H.264/AVC
AU - Lu, Taoran
AU - Chen, Zhifeng
AU - Wu, Dapeng
AU - Yu, Heather
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2010
Y1 - 2010
N2 - This paper presents a new Region-of-Interest (ROI) based bit-allocation scheme for advanced video coding (H.264). We use a group-of-picture (GOP) structure to compensate bits consumption between Intra and Inter frames in one GOP, and simultaneously adjust the quantization parameter (QP) for each macroblock, according to the region-of-interest on Intra(I) or Inter(P) frames, respectively. Our algorithm is implemented on the H.264/AVC codec JM14.0 and totally compatible with existing H.264/AVC decoders. The experimental results show that compared to the standard JM14.0 encoder, under the same bitrate budget, the proposed algorithm achieves a subjective visual quality improvement as well as an objective PSNR gain. The ROI-based bit allocation scheme has a potential to low-bitrate and real-time video applications, such as video conferencing and mobile TV broadcasting. © 2010 Copyright SPIE - The International Society for Optical Engineering.
AB - This paper presents a new Region-of-Interest (ROI) based bit-allocation scheme for advanced video coding (H.264). We use a group-of-picture (GOP) structure to compensate bits consumption between Intra and Inter frames in one GOP, and simultaneously adjust the quantization parameter (QP) for each macroblock, according to the region-of-interest on Intra(I) or Inter(P) frames, respectively. Our algorithm is implemented on the H.264/AVC codec JM14.0 and totally compatible with existing H.264/AVC decoders. The experimental results show that compared to the standard JM14.0 encoder, under the same bitrate budget, the proposed algorithm achieves a subjective visual quality improvement as well as an objective PSNR gain. The ROI-based bit allocation scheme has a potential to low-bitrate and real-time video applications, such as video conferencing and mobile TV broadcasting. © 2010 Copyright SPIE - The International Society for Optical Engineering.
KW - bit allocation
KW - H.264
KW - Region-of-Interest (ROI)
KW - video coding
UR - http://www.scopus.com/inward/record.url?scp=79953677216&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-79953677216&origin=recordpage
U2 - 10.1117/12.849166
DO - 10.1117/12.849166
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9780819481726
VL - 7708
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Mobile Multimedia/Image Processing, Security, and Applications 2010
T2 - Mobile Multimedia/Image Processing, Security, and Applications 2010
Y2 - 5 April 2010 through 6 April 2010
ER -