Abstract
This paper presents an effective rate control algorithm by adaptively selecting the optimal modes for macroblocks in a block based video codec. For a given frame, the optimal modes are selected based on a decision curve that minimizes the overall distortion for a given bitrate. The proposed approach is different from the previous ones in that it does not manipulate quantizer to meet target bitrate. Instead it controls the decision curve to meet that target bitrate. The curve is obtained by utilizing simulated annealing optimization technique. The algorithm is implemented within H.261 video codec and simulation results are compared with other approaches.
| Original language | English |
|---|---|
| Pages (from-to) | 186-189 |
| Number of pages | 4 |
| Journal | Proceedings - IEEE International Symposium on Circuits and Systems |
| Volume | 4 |
| State | Published - 1998 |
| Event | Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, ISCAS. Part 5 (of 6) - Monterey, CA, USA Duration: 31 May 1998 → 3 Jun 1998 |