TY - GEN
T1 - An improved parametric bit rate model for frame-level rate control in video coding
AU - Chen, Zhifeng
AU - Doken, Serhad
AU - Wu, Dapeng
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 - 2011
Y1 - 2011
N2 - In a wireless video communication system, the video encoder needs to dynamically control the coding parameters based on the instantaneous video statistics and channel condition to achieve the best video quality. An accurate bit rate model can help the encoder to achieve accurate bit rate control and good rate-distortion (R-D) performance. In this paper, we improve the bit rate model by modeling the component of run-level mapping plus entropy coding as the process of choosing different codebooks for different quantized transform coefficients. We also compensate the mismatch between the true histogram and the assumed Laplacian distribution in a parametric model by utilizing the deviation of the estimation in previous frames. © 2011 IEEE.
AB - In a wireless video communication system, the video encoder needs to dynamically control the coding parameters based on the instantaneous video statistics and channel condition to achieve the best video quality. An accurate bit rate model can help the encoder to achieve accurate bit rate control and good rate-distortion (R-D) performance. In this paper, we improve the bit rate model by modeling the component of run-level mapping plus entropy coding as the process of choosing different codebooks for different quantized transform coefficients. We also compensate the mismatch between the true histogram and the assumed Laplacian distribution in a parametric model by utilizing the deviation of the estimation in previous frames. © 2011 IEEE.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-79955746722&origin=recordpage
U2 - 10.1109/DCC.2011.55
DO - 10.1109/DCC.2011.55
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 9780769543529
T3 - Data Compression Conference Proceedings
BT - Proceedings - DCC 2011: 2011 Data Compression Conference
T2 - 2011 Data Compression Conference, DCC 2011
Y2 - 29 March 2011 through 31 March 2011
ER -