Refinements
Refinements
- Lossy compression: ignore small differences
- Interpolation in video:
- transmit complete frame image rarely
- interpose delta frames (differences to prior)
- create morphed frames in the subintervals
- (MPEG: midway)
- correct morphed frame blocks that differ greatly
- (not now in MPEG)
- create more morphed frames in interval
- (MPEG: recursively)
Effect on TV images:
reduction to 5%, imperceptible quality difference