JP2002508096A - 画素値を発生する装置および方法 - Google Patents
画素値を発生する装置および方法Info
- Publication number
- JP2002508096A JP2002508096A JP50405499A JP50405499A JP2002508096A JP 2002508096 A JP2002508096 A JP 2002508096A JP 50405499 A JP50405499 A JP 50405499A JP 50405499 A JP50405499 A JP 50405499A JP 2002508096 A JP2002508096 A JP 2002508096A
- Authority
- JP
- Japan
- Prior art keywords
- value
- sequence
- computer graphics
- estimator
- pixel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/50—Lighting effects
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/50—Lighting effects
- G06T15/506—Illumination models
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T15/00—3D [Three Dimensional] image rendering
- G06T15/50—Lighting effects
- G06T15/55—Radiosity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Graphics (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Generation (AREA)
- Holo Graphy (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 記シーン中の前記点に中心を置く球面にわたって関数f(x)の計算によって表 でf(x)(および同様にf(y))は未知の関数、g(x)とK(x,y)は 既知の関数で、K(x,y)は積分の「核」として機能する、画像中の画素の画 素値を発生するコンピュータ・グラフィックス装置であって、 A.Θ(x)がヘビサイド関数を表し、ξ1 (n),ξ’1 (n),ξ2 (n),ξ’2 (n), ...,ξL (n),ξ’L (n)は厳密に決定論的な食い違いが小さい所定の多次元数列の 成分を表し、「n」が数列のインデックスを示すものとして、選択された数「N 」の推定量f(n) RR(x)を として発生し、かつ値0を持つ項を発生するまで各推定量値f(n) RR(x)に対す る連続した項を発生する推定量発生器と、 B.前記シーン内の前記点についての照度値を、前記推定量発生器により発生さ れた前記推定量値の平均として発生する照度値発生器と、 C.画素値を発生する際に前記シーン中の前記点について発生された照度値を用 いる画素値発生器と、 を有する、画像中の画素の画素値を発生するコンピュータ・グラフィックス装置 。 2.前記の食い違いが小さい所定の数列が多次元の一般化された多次元ホール トン数列である、請求項1に記載のコンピュータ・グラフィックス装置。 3.前記推定量値発生器が前記推定量f(n) RR(x)をとして発生し、ここで「p(x,y)」は0から1までの区間の値を取る任意の 関数を表す、請求項1に記載のコンピュータ・グラフィックス装置。 4.前記推定量発生器は、少なくとも1つの推定量値を、選択された変換に従 って処理された前記食い違いの小さい数列(ξ1 (n),ξ’1 (n),ξ2 (n),ξ’2 ( n) ,・・・,ξL (n),ξ’L (n))の’をつけられていない成分をつけられている 成分ξ1 (n),・・・,ξL (n)として発生するのに使用する、請求項1に記載のコ ンピュータ・グラフィックス装置。 散成分と、光沢のある成分と、反射する成分との和である双方向散乱分配関数で あり; する角度であり、 等しく、点x’が点xから見えないならば値0に等しい可視度関数である、請求 項1に記載のコンピュータ・グラフィックス装置。を持ち、ここでf(x)(および同様にf(y))は未知の関数、g(x)とK (x,y)は既知の関数で、K(x,y)は積分の「核」として機能する、全体 照明をシミュレートするように発生される、画素中の画素の画素を発生するコン ピュータ・グラフィックス装置であって、 A.Θ(x)がヘビサイド関数を表し、ξ1 (n),ξ’1 (n),ξ2 (n),ξ’2 (n), ・・・,ξL (n),ξ’L (n),が厳密に決定論的な食い違いが小さい所定の数列の 成分を表し、「n」が数列のインデックスを示すものとして、選択された数「N 」の推定量f(n) RR(x)を として発生し、そして、前記推定量発生器が値0を持つ項を発生するまで各推定 量値f(n) RR(x)に対する連続した項を発生し、 B.前記シーン内の前記点についての照度値を、前記推定量値の平均として発生 すること、 C.画素値を発生する際に前記シーン中の前記点について発生された照度値を用 いること、 を有する、画像中の画素の画素値を発生するコンピュータ・グラフィックス法。 7.食い違いの小さい前記所定の数列が一般化された多次元ホールトン数列で ある、請求項6に記載のコンピュータ・グラフィックス方法。 8.前記推定量値f(n) RR(x)が前記推定量発生ステップで、 として発生され、ここに「p(x,y)」は0から1までの区間内の値をとる任 意の関数を表す、請求項6に記載のコンピュータ・グラフィックス方法。 9.少なくとも1つの推定量値を’をつけられていない成分ξ1 (n),・・・, ξL (n)として発生する際に、前記食い違いの小さい数列(ξ1 (n),ξ’1 (n),ξ2 (n) ,ξ’2 (n),・・・,ξL (n),ξ’L (n))の’をつけられていない成分が、 選択された変換に従って処理される、請求項6に記載のコンピュータ・グラフィ ックス法。 値、 w’に反射され、屈折され、さもなくば散乱させられるかを記述し、かつほぼ拡 散成分と、光沢のある成分と、反射する成分との和である双方向散乱分配関数で あり する角度であり、 等しく、点x’が点xから見えないならば値0に等しい可視度関数である、請求 項6に記載のコンピュータ・グラフィックス法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/880,418 US6529193B1 (en) | 1996-06-25 | 1997-06-23 | System and method for generating pixel values for pixels in an image using strictly deterministic methodologies for generating sample points |
US08/880,418 | 1997-06-23 | ||
PCT/IB1998/001015 WO1998059322A1 (en) | 1997-06-23 | 1998-06-23 | System and method for generating pixel values |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2002508096A true JP2002508096A (ja) | 2002-03-12 |
JP2002508096A5 JP2002508096A5 (ja) | 2005-12-22 |
JP4072209B2 JP4072209B2 (ja) | 2008-04-09 |
Family
ID=25376240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50405499A Expired - Lifetime JP4072209B2 (ja) | 1997-06-23 | 1998-06-23 | 画素値を発生する装置および方法 |
Country Status (8)
Country | Link |
---|---|
US (4) | US6529193B1 (ja) |
EP (1) | EP0992024B1 (ja) |
JP (1) | JP4072209B2 (ja) |
AT (1) | ATE236439T1 (ja) |
AU (1) | AU759796B2 (ja) |
CA (1) | CA2294995C (ja) |
DE (1) | DE69812947T2 (ja) |
WO (1) | WO1998059322A1 (ja) |
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JP4100625B2 (ja) * | 2001-06-07 | 2008-06-11 | メンタル イメージズ ゲーエムベーハー | サンプル・ポイントのコースシーケンスを発生させるための確定的な方法論を用いた画像表示 |
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1997
- 1997-06-23 US US08/880,418 patent/US6529193B1/en not_active Expired - Lifetime
-
1998
- 1998-06-23 AT AT98925900T patent/ATE236439T1/de not_active IP Right Cessation
- 1998-06-23 WO PCT/IB1998/001015 patent/WO1998059322A1/en active IP Right Grant
- 1998-06-23 JP JP50405499A patent/JP4072209B2/ja not_active Expired - Lifetime
- 1998-06-23 CA CA002294995A patent/CA2294995C/en not_active Expired - Fee Related
- 1998-06-23 EP EP98925900A patent/EP0992024B1/en not_active Expired - Lifetime
- 1998-06-23 DE DE69812947T patent/DE69812947T2/de not_active Expired - Lifetime
- 1998-06-23 AU AU77857/98A patent/AU759796B2/en not_active Ceased
-
2002
- 2002-11-18 US US10/299,733 patent/US7071938B2/en not_active Expired - Lifetime
-
2006
- 2006-06-08 US US11/450,130 patent/US7479962B2/en not_active Expired - Fee Related
-
2009
- 2009-01-19 US US12/356,066 patent/US7760202B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69812947T2 (de) | 2003-11-13 |
ATE236439T1 (de) | 2003-04-15 |
AU7785798A (en) | 1999-01-04 |
JP4072209B2 (ja) | 2008-04-09 |
US7071938B2 (en) | 2006-07-04 |
US20030095122A1 (en) | 2003-05-22 |
DE69812947D1 (de) | 2003-05-08 |
EP0992024B1 (en) | 2003-04-02 |
US20070018978A1 (en) | 2007-01-25 |
US6529193B1 (en) | 2003-03-04 |
US7760202B2 (en) | 2010-07-20 |
US20090153558A1 (en) | 2009-06-18 |
AU759796B2 (en) | 2003-05-01 |
WO1998059322A1 (en) | 1998-12-30 |
CA2294995C (en) | 2007-05-01 |
EP0992024A1 (en) | 2000-04-12 |
US7479962B2 (en) | 2009-01-20 |
CA2294995A1 (en) | 1998-12-30 |
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