On issues of precision for hardware texture-based volume visualization

Eric LaMar

doi:10.1117/12.539257

4 June 2004 On issues of precision for hardware texture-based volume visualization

Eric LaMar

Proceedings Volume 5295, Visualization and Data Analysis 2004; (2004) https://doi.org/10.1117/12.539257
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

This paper discusses issues with the limited precision of hardware texture-based volume visualization. We will describe the compositing OVER operator and how fixed-point arithmetic affects it. We propose two techniques to improve the precision of fixed-point compositing and the accuracy of hardware-based volume visualization. The first technique is to perform dithering of color and alpha values. The sedond technique we call exponent-factoring, and captures significanly more numeric resolution than dithering, but can only produce monochromatic images.

Citation Download Citation

Eric LaMar "On issues of precision for hardware texture-based volume visualization", Proc. SPIE 5295, Visualization and Data Analysis 2004, (4 June 2004); https://doi.org/10.1117/12.539257

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