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SIBGRAPI
2000
IEEE

Ray Path Categorization

13 years 7 months ago
Ray Path Categorization
Edge detection and image segmentation algorithms usually operate on an image to extract geometrical information based on pixel colors. For ray-traced images, the presence of geometrical information on the scene from which the image was rendered allows for a completely different approach. We present an algorithm that divides rays into equivalence classes, or categories. The category information is generated during the rendering process and used to determine edges in the resulting image. Detected edges can later be used to help determine areas subject to aliasing. Little effort is needed to implement the described algorithms over an existing ray-tracer. Furthermore, the extra computational and memory requirements are modest.
Diego Nehab, Marcelo Gattass
Added 25 Aug 2010
Updated 25 Aug 2010
Type Conference
Year 2000
Where SIBGRAPI
Authors Diego Nehab, Marcelo Gattass
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