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http://dx.doi.org/10.9717/kmms.2011.14.10.1229

Real-time Volume Rendering using Point-Primitive  

Kang, Dong-Soo (인하대학교 컴퓨터.정보공학과)
Shin, Byeong-Seok (인하대학교 컴퓨터.정보공학과)
Publication Information
Journal of Korea Multimedia Society / v.14, no.10, 2011 , pp. 1229-1237 More about this Journal
Abstract
The volume ray-casting method is one of the direct volume rendering methods that produces high-quality images as well as manipulates semi-transparent object. Although the volume ray-casting method produces high-quality image by sampling in the region of interest, its rendering speed is slow since the color acquisition process is complicated for repetitive memory reference and accumulation of sample values. Recently, the GPU-based acceleration techniques are introduced. However, they require pre-processing or additional memory. In this paper, we propose efficient point-primitive based method to overcome complicated computation of GPU ray-casting. It presents semi-transparent objects, however it does not require preprocessing and additional memory. Our method is fast since it generates point-primitives from volume dataset during sampling process and it projects the primitives onto the image plane. Also, our method can easily cope with OTF change because we can add or delete point-primitive in real-time.
Keywords
GPU Volume Rendering; Point-Primitive; Geometry Shader;
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Times Cited By KSCI : 1  (Citation Analysis)
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