Efficient motion vector selection and mode decision schemes for transcoder between DVC and VC-1

Transcoding between Distributed Video Coding (DVC) and VC-1 is an interesting research topic, has various applications, and VC-1 is one of most popular and efficient video codecs. Among the various techniques related to transcoders, we focus on motion estimation and mode decision. In this paper, we...

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Vydáno v:IEEE transactions on consumer electronics Ročník 58; číslo 3; s. 905 - 911
Hlavní autoři: Lee, Jae-Yung, Han, Jong-Ki, Sim, Dong-Gyu
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.08.2012
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Blocking
Codec
Coding
Decoding
DVC
Electronics
Mathematical analysis
Motion estimation
Silicon
Simulation
Studies
Transcoder
Transcoders
Transcoding
VC-1
Vectors
Vectors (mathematics)
Video codecs
ISSN:0098-3063, 1558-4127
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Shrnutí:Transcoding between Distributed Video Coding (DVC) and VC-1 is an interesting research topic, has various applications, and VC-1 is one of most popular and efficient video codecs. Among the various techniques related to transcoders, we focus on motion estimation and mode decision. In this paper, we propose a Best Matched Vector Selection (BMVS) and fast mode decision to increase the accuracy and speed of the motion vector estimation and mode decision in the transcoder. BMVS is used to predict motion vectors for multiple reference frames that are far from the current frame. The proposed mode decision scheme selects a mode for the current coding block based on the information transferred from the DVC decoder, without calculating the Rate-Distortion (RD) costs for all possible candidate modes. Simulation results show that the proposed schemes simplify the transcoder significantly without degrading the transcoded video sequences.
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ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2012.6311335