Ray-space coding based on arbitrarily shaped DCT

Toshiaki Fujii; Tadahiko Kimoto; Masayuki Tanimoto

doi:10.1117/12.307172

30 April 1998 Ray-space coding based on arbitrarily shaped DCT

Toshiaki Fujii, Tadahiko Kimoto, Masayuki Tanimoto

Proceedings Volume 3295, Stereoscopic Displays and Virtual Reality Systems V; (1998) https://doi.org/10.1117/12.307172
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

Abstract

The Ra-Space method proposed by us is one of the key tools which can be applied to wide areas of 3D image processing and handling. It will contribute to the creation of 3D spatial communication and virtual societies. The Ray-Space is defined as the intensity function F(P), where P represent 4D ray parameters. In this paper, we present a novel Ray- Space coding scheme using an arbitrary-shaped DCT. This scheme consists of the following two steps. The Ray-Space data is first segmented into quadrilateral-shaped primitives. Then, the texture data in each primitive is coded by the arbitrary-shaped DCT. In the experiment, the coding performance of the proposed scheme was examined. The results shows that the proposed coding scheme shows the better coding performance than the block-based Ray-Space coder.

Citation Download Citation

Toshiaki Fujii, Tadahiko Kimoto, and Masayuki Tanimoto "Ray-space coding based on arbitrarily shaped DCT", Proc. SPIE 3295, Stereoscopic Displays and Virtual Reality Systems V, (30 April 1998); https://doi.org/10.1117/12.307172

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