Abstract

We present a novel measure for compression of time- variant geometry. Compression of time-variant geometry has become increasingly relevant as transmission of high quality geometry streams is severely limited by network bandwidth. Some work has been done on such compression schemes, but none of them give a measure for prioritizing the loss of information from the geometry stream while doing a lossy compression. In this paper we introduce a cost function which assigns a cost to the removal of particular geometric primi- tives during compression, based upon their importance in pre- serving the complete animation. We demonstrate that the use of this measure visibly enhances the performance of existing compression schemes.