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Object-based 3-D wavelet coding using layered object representation

: Schwarz, H.; Müller, E.

IEEE Signal Processing Society:
International Conference on Image Processing 2000. Proceedings. Vol. 1 : 10 Sep 2000 - 13 Sep 2000, Vancouver
Piscataway: IEEE, 2000
ISBN: 0-7803-6297-7
International Conference on Image Processing (ICIP) <2000, Vancouver>
Conference Paper
Fraunhofer HHI ()

In recent years, object/region-based video coding schemes have attracted considerable attention in the image coding community. These schemes are expected to yield better coding results, especially at low bit-rates. In this paper a new object/region-based video coding scheme is presented. It is based on a layered object representation for image groups along with affine motion fields. Thus, groups of images are decomposed into a number of object sequences. Each object sequence is motion compensated, transformed and coded separately using a 3-d wavelet transform. The presented results prove that object/region-based coding schemes can outperform the block-based standards in objective (PSNR) and subjective (visual) quality.