| Conference |
| Type of Publication |
| SAMPEG, a Scene Adaptive Parallel MPEG-2 Software
Encoder |
| Title |
|
Niels Mache
Peter H. N. de With
|
| Authors |
| SPIE Visual Communications and Image Processing
(VCIP), pp.
272-283, San José, January 2001 |
| Published in |
| This paper presents a fully software-based
MPEG-2 encoder architecture, which uses scene-change detection to
optimize the Group-of-Picture (GOP) structure for the actual
video sequence. This feature enables easy, lossless edit cuts at
scene-change positions and it also improves overall picture
quality by providing good reference frames for motion prediction.
Another favourable aspect is the high coding speed obtained,
because the encoder is based on a novel concept for parallel MPEG
coding on SMP machines. This concept allows the use of advanced
frame-based coding algorithms for motion estimation and adaptive
quantization, thereby enabling high-quality software encoding in
real-time. Our proposal can be combined with the conventional
parallel computing approach on slice basis, to further improve
parallelization efficiency. The concepts in the current SAMPEG
implementation for MPEG-2 are directly applicable to MPEG-4
encoders. |
| Abstract |
|
Video Compression
MPEG Encoding
Parallelization
Scene Cut Detection
|
| Keywords |
| [PDF]
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