An improved distributed video coding with low-complexity motion estimation at encoder

Distributed Video Coding (DVC) is a novel scheme which is different from the state-of-the-art video compression standards. A specific characteristic of DVC is its use of a low complexity encoder. However, there exists an issue on the DVC, which requires redundant decoding time. Therefore, low-comple...

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Vydáno v:Proceedings / IEEE International SOC Conference s. 111 - 114
Hlavní autoři: Yang, Hsin-Ping, Hsieh, Hsiao-Chi, Chang, Sheng-Hsiang, Chen, Sao-Jie
Médium: Konferenční příspěvek Journal Article
Jazyk:angličtina
Vydáno: IEEE 01.09.2015
Témata:
Coders
Coding
Complexity
Complexity theory
Decoding
distributed video coding
Encoders
Entropy coding
low-complexity motion estimation
Motion estimation
Motion simulation
Parity check codes
System on chip
Video coding
Video compression
Wyner-Ziv codec
ISSN:2164-1706
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Shrnutí:Distributed Video Coding (DVC) is a novel scheme which is different from the state-of-the-art video compression standards. A specific characteristic of DVC is its use of a low complexity encoder. However, there exists an issue on the DVC, which requires redundant decoding time. Therefore, low-complexity motion estimation algorithm and skip mode have been applied to the encoder of a hybrid DVC to reduce half of the decoding time. The computational complexity of the encoder only increases slightly with respect to the hybrid DVC, which is still far less than H.264/AVC no motion. In some cases, the encoding time is even reduced instead of being increased. Besides, the rate-distortion performance is improved in high motion videos. However, the rate-distortion performance does not decrease in the static video, because of the added motion estimation.
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SourceType-Conference Papers & Proceedings-2
ISSN:2164-1706
DOI:10.1109/SOCC.2015.7406923