71 search results - page 3 / 15 » Compressed Domain Transcoding of MPEG |
TCSV
2008
13 years 7 months ago
2008
Since variable block-size motion compensation (MC) and rate-distortion optimization (RDO) techniques are adopted in H.264/MPEG-4 AVC, modes and motion vectors (MVs) in input stream...
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, a fast transform method is proposed to convert MPEG-2 8-tap discrete cosine transform (DCT) coefficients to H.264/AVC 4-tap integer transform coefficients directly ...
ISCAS
2003
IEEE
14 years 18 days ago
2003
IEEE
In order to obtain optimal visual quality while meeting the bit rate requirements, a video transcoder needs efficient rate-control with fine and dynamic adjustments. This paper pr...
ICIAP
2005
ACM
14 years 7 months ago
2005
ACM
To improve video quality and coding efficiency, H.264/AVC [1] has adopted several newer coding tools such as a 4?4 integer DCT and a method for calculating half pixels than the pre...
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— In this paper, we focus on 2 : 1 spatial resolution downscaling transcoding from MPEG-2 to WMV. We propose two architectures (for sequences with or without B-frames res...