Contributions to interframe coding

Abstract

Advanced motion models (4 or 6 parameters) are needed for a good representation of the motion experimented by the different objects contained in a sequence of images. If the image is split in very small blocks, then an accurate description of complex movements can be achieved with only 2 parameters. This alternative implies a large set of vectors per image. We propose a new approach to reduce the number of vectors, using different block sizes as a function of the local characteristics of the image, without increasing the error accepted with the smallest blocks. A second algorithm is proposed for an inter/intraframe coder.

6 pages, published in Workshop on image analysis & synthesis in image coding. October 1994. Berlin. pp. C3.1 to C3.6. arXiv admin note: text overlap with arXiv:2203.00445