Compressed video enhancement algorithm

Chun-Jen Tsai*, Passant Karunaratne, Nikolas P. Galatsanos, K. Katsaggelos

*Corresponding author for this work

研究成果: Paper同行評審

13 引文 斯高帕斯(Scopus)


The problem of the enhancement of a low bit-rate compressed video sequence using the information provided by the encoder is investigated in this paper. The proposed algorithm is spatio-temporally adaptive and enforces different degrees of between-block, within-block, and temporal smoothness of the decompressed frames based on macroblock types. The algorithm uses the projections onto the sets that capture the information conveyed by the transmitted data to constrain the solution space. A partially automatic regularization parameter estimation algorithm is also proposed in this paper. An analysis of PSNR gain per macroblock type is presented to cast insight into the compressed video enhancement problem. The experimental results demonstrate the effectiveness of the proposed approach.

出版狀態Published - 1 十二月 1999
事件International Conference on Image Processing (ICIP'99) - Kobe, Jpn
持續時間: 24 十月 199928 十月 1999


ConferenceInternational Conference on Image Processing (ICIP'99)
城市Kobe, Jpn

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