| Article |
| Type of Publication |
| A Software-Based High-Quality MPEG-2 Encoder Employing
Scene Change Detection and Adaptive Quantization |
| Title |
|
Niels Mache
Peter H. N. de With
|
| Authors |
| IEEE Transactions on Consumer Electronics 48 (4), pp.
887-897, November 2002 |
| Published in |
| This paper presents a software-only MPEG
encoder implementation which uses adaptive quantization and scene
change detection to enhance the image quality. Scene change
detection is coupled to the bit-allocation process, providing a
more constant image quality over time. Simultaneously, it is used
to assign picture coding types for enabling easy, lossless
cutting at scene change positions in a later editing process.
Furthermore, a new fast bit-rate estimation algorithm is
proposed, which is accurate enough to avoid macroblock-level
rate-control. Although our current implementation concentrates on
an MPEG-2 implementation, all concepts are readily applicable to
MPEG-4 encoders. |
| Abstract |
|
MPEG-2 encoder
adaptive quantization
rate control
scene change detection
|
| Keywords |
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