Abstract
We present a new algorithm to find motion vectors of B frames (bidirectional frames) in the MPEG encoding scheme which significantly reduces the computations required compared with the conventional method. We interpolate the motion vectors for each macro block in the B frame using the motion vector of the next P frame (predictive frame) and do a small search to final a better matching. The number of computations is reduced by factor of 5spl sim20, but the matching stays comparable with that of exhaustive search.
Original language | English (US) |
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Article number | 389493 |
Pages (from-to) | V217-V220 |
Journal | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
Volume | 5 |
State | Published - 1994 |
All Science Journal Classification (ASJC) codes
- Software
- Signal Processing
- Electrical and Electronic Engineering