Presentation 2006/1/2
AN ADAPTIVE RADIATION OF INITIAL RAYS IN RAY TRACING BY AUTOMATIC DIFFERENTIATION(International Workshop on Advanced Image Technology 2006)
Masato Misumi, Mitsunori Makino,
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Abstract(in English) The ray tracing algorithm is well-known as one of the most popular rendering techniques in computer graphics. In the ray tracing, tracing the rays and calculating intersection between rays and objects are essential. Since usually a ray having no thickness is defined for each pixel of the image, the image may include aliasing. For anti-aliasing, one of the authors proposed an adaptive distributed ray tracing in the use of the automatic differentiation. However, number of initial rays are determined by resolution of prospective image. Therefore it takes longer time as we need larger image. Expanding the method to detection of variation over pixels. an adaptive method is proposed to determine from which pixels initial rays should be radiated. Since unnecessary initial rays are not calculated, the proposed method benefits more efficient calculation of ray tracing.
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Keyword(in English) Anti-aliasing / Automatic differentiation / Distributed ray tracing
Paper # IE2005-171
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Committee IE
Conference Date 2006/1/2(1days)
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Registration To Image Engineering (IE)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) AN ADAPTIVE RADIATION OF INITIAL RAYS IN RAY TRACING BY AUTOMATIC DIFFERENTIATION(International Workshop on Advanced Image Technology 2006)
Sub Title (in English)
Keyword(1) Anti-aliasing
Keyword(2) Automatic differentiation
Keyword(3) Distributed ray tracing
1st Author's Name Masato Misumi
1st Author's Affiliation Graduate School of Science and Engineering, Chuo University()
2nd Author's Name Mitsunori Makino
2nd Author's Affiliation Graduate School of Science and Engineering, Chuo University
Date 2006/1/2
Paper # IE2005-171
Volume (vol) vol.105
Number (no) 500
Page pp.pp.-
#Pages 6
Date of Issue