講演名 | 2006/1/2 AN ADAPTIVE RADIATION OF INITIAL RAYS IN RAY TRACING BY AUTOMATIC DIFFERENTIATION(International Workshop on Advanced Image Technology 2006) , |
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PDFダウンロードページ | PDFダウンロードページへ |
抄録(和) | |
抄録(英) | 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. |
キーワード(和) | |
キーワード(英) | Anti-aliasing / Automatic differentiation / Distributed ray tracing |
資料番号 | IE2005-171 |
発行日 |
研究会情報 | |
研究会 | IE |
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開催期間 | 2006/1/2(から1日開催) |
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講演論文情報詳細 | |
申込み研究会 | Image Engineering (IE) |
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本文の言語 | ENG |
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サブタイトル(和) | |
タイトル(英) | AN ADAPTIVE RADIATION OF INITIAL RAYS IN RAY TRACING BY AUTOMATIC DIFFERENTIATION(International Workshop on Advanced Image Technology 2006) |
サブタイトル(和) | |
キーワード(1)(和/英) | / Anti-aliasing |
第 1 著者 氏名(和/英) | / Masato Misumi |
第 1 著者 所属(和/英) | Graduate School of Science and Engineering, Chuo University |
発表年月日 | 2006/1/2 |
資料番号 | IE2005-171 |
巻番号(vol) | vol.105 |
号番号(no) | 500 |
ページ範囲 | pp.- |
ページ数 | 6 |
発行日 |