WO2008120298A1 - パース補正回路、画像処理装置及び画像処理プログラム - Google Patents

パース補正回路、画像処理装置及び画像処理プログラム Download PDF

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Publication number
WO2008120298A1
WO2008120298A1 PCT/JP2007/056567 JP2007056567W WO2008120298A1 WO 2008120298 A1 WO2008120298 A1 WO 2008120298A1 JP 2007056567 W JP2007056567 W JP 2007056567W WO 2008120298 A1 WO2008120298 A1 WO 2008120298A1
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WO
WIPO (PCT)
Prior art keywords
coordinates
pixel
image processing
perspective correction
texture
Prior art date
Application number
PCT/JP2007/056567
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English (en)
French (fr)
Inventor
Yasushi Sugama
Original Assignee
Fujitsu Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2007/056567 priority Critical patent/WO2008120298A1/ja
Publication of WO2008120298A1 publication Critical patent/WO2008120298A1/ja

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/04—Texture mapping

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  • Engineering & Computer Science (AREA)
  • Computer Graphics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Generation (AREA)

Abstract

　xyz座標系が透視変換によりxyzwデバイス座標系に変換された三次元画像の頂点座標(x, y, z, w)と、テクスチャ画像のテクスチャ座標(u, v)とに基づいてパース補正を行い画素毎のテクスチャ座標(u, v)を出力するパース補正回路は、三次元画像の頂点座標(x, y, z, w)に基づいて、同次座標(x,y,w)から座標(w,0,1)に変換する行列（Ⅰ） の行列要素K, L, M, N, P, Q, R, S, Tのうちx, y, wの値にかかわらず常に0となる行列要素K, L, N, P, Qを除く行列要素M, R, S, Tを求める第１の計算部と、三次元画像の頂点座標(x, y, z, w)及びテクスチャ座標(u, v)に基づいて、各頂点間の座標(U,V)の画素を線形補間して画素毎の座標(U, V)を求める第１の処理部と、行列要素M, R, S, Tに基づいて, （Ⅱ）なる式から画素毎のwを求める第２の計算部と、画素毎の座標(U, V)及び画素毎のwに基づいて、画素毎のテクスチャ座標(u, v)を求める第２の処理部とを備える。
PCT/JP2007/056567 2007-03-28 2007-03-28 パース補正回路、画像処理装置及び画像処理プログラム WO2008120298A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056567 WO2008120298A1 (ja) 2007-03-28 2007-03-28 パース補正回路、画像処理装置及び画像処理プログラム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056567 WO2008120298A1 (ja) 2007-03-28 2007-03-28 パース補正回路、画像処理装置及び画像処理プログラム

Publications (1)

Publication Number Publication Date
WO2008120298A1 true WO2008120298A1 (ja) 2008-10-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/056567 WO2008120298A1 (ja) 2007-03-28 2007-03-28 パース補正回路、画像処理装置及び画像処理プログラム

Country Status (1)

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WO (1) WO2008120298A1 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09134451A (ja) * 1995-11-09 1997-05-20 Hitachi Ltd 透視投影計算装置および透視投影計算方法
JPH11185052A (ja) * 1997-12-25 1999-07-09 Fujitsu Ltd ３次元コンピュータグラフィックスのテクスチャマッピング座標計算装置および方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09134451A (ja) * 1995-11-09 1997-05-20 Hitachi Ltd 透視投影計算装置および透視投影計算方法
JPH11185052A (ja) * 1997-12-25 1999-07-09 Fujitsu Ltd ３次元コンピュータグラフィックスのテクスチャマッピング座標計算装置および方法

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