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- W2017170160 abstract "The authors previously proposed the reflection integration method which generates a realistic image of objects, and the precise rendering method which accurately eliminates aliasing of images. The two methods have a common process which precisely integrates reflected lights over a unit sphere. Since this process involves a large amount of computation, accelerating the process is desired. The present paper proposes a procedure which significantly reduces the computation without sacrificing its accuracy by using an adaptive sampling table. For a part on an object where a light is sharply reflected, the reflected light sharply reduces depending on directions. The proposed procedure uses the table which nonlinearly subdivides reflection direction; precisely where a reflected light changes sharply and roughly at rest. As a result, a full-color image can be generated with a sufficient accuracy with 90 × 90 divisions in the table. This adaptive table reduces the computation time for the integration of reflection lights on a semisphere to one-tenth the previous method, which is equivalent to the reduction of a total image generation time by 40 to 60 percent." @default.
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- W2017170160 date "1995-01-01" @default.
- W2017170160 modified "2023-09-23" @default.
- W2017170160 title "Fast and accurate image generation with adaptive tables" @default.
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- W2017170160 doi "https://doi.org/10.1002/scj.4690261103" @default.
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