| Journal | IEEE Journal of Selected Topics in Signal Processing |
| Volume | 5 |
| Issue/Number | 7 |
| Publisher | IEEE |
| Pages | 1309 -1321 |
| Date | November 2011 |
| Author(s) | Andreas Krutz, Alexander Glantz, Michael Frater, Thomas Sikora |
| Title | Rate-Distortion Optimized Video Coding using Automatic Sprites |
| Abstract | Object-based video coding has been of interest for many years. Recent work by the authors has shown that a video coding system using background Sprites with automatic segmentation and background subtraction can indeed perform better than the H.264/AVC coder. In this paper, we extend this work by developing a rate-distortion optimization approach for an object-based coder. A key issue addressed by this approach is the joint choice of quantization parameters for the foreground and background. The performance of the resulting rate-distortionoptimized coder is far superior to that of H.264/AVC for source material with dominant global motion, across a range of bit rates. |
| Key words | compression, video coding, sprite generation, rate-distortion optimization |
| Note | ISSN 1932-4553 |
| DOI | 10.1109/JSTSP.2011.2166247 |