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ICMCS
2000
IEEE

Selective Requantization for Transcoding of MPEG Compressed Video

8 years 11 months ago
Selective Requantization for Transcoding of MPEG Compressed Video
This paper addresses the problem of bit-rate conversion of MPEG compressed video. We present selective requantization, a method for reducing the requantization errors in transcoding. The proposed method is based on avoiding critical ratios of the two cascaded quantizations (encoding versus transcoding) that either lead to larger transcoding errors or require a higher bit budget. Results show that selective requantization improve the quality of the transcoded images. The presented method is simple to implement and does not require side information.
Hani Sorial, William E. Lynch, André Vincen
Added 31 Jul 2010
Updated 31 Jul 2010
Type Conference
Year 2000
Where ICMCS
Authors Hani Sorial, William E. Lynch, André Vincent
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