A Study on Fast, High-quality Synthesis of CG Images

• Project/Area Number: 20500082
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Media informatics/Database
• Research Institution: Hokkaido University
• Principal Investigator: DOBASHI Yoshinori 北海道大学, 大学院・情報科学研究科, 准教授 (00295841)
• Co-Investigator(Kenkyū-buntansha): IWASAKI Kei 和歌山大学, 工学部, 准教授 (90379610)
• Project Period (FY): 2008 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: ガス状物体 / 変形物体 / 高速計算 / データベース / リアルタイム / 動物体 / 高速輝度計算 / リアルタイムレンダリング / グラフィックスハードウェア

Research Abstract

We developed fast methods for the generating synthetic images of gaseous objects and deformable objects. These objects have been difficult to be handled and it took about several minutes to create an image of these objects. Our method creates a database in a preprocessing step to accelerate the image generation process. The proposed method made it possible to generate an image within 100 milliseconds.

Research Products

• [Journal Article] Real-time Rendering of Dynamic Scenes under All-frequency Lighting using Integral Spherical Gaussian (2012)
  • Author(s): K. Iwasaki, W. Furuya, Y. Dobashi, T. Nishita
  • Journal Title: Computer Graphics Forum Volume: Vol.31, No.2 Pages: 727-734
• [Journal Article] Real-time Kendering of Dynamic Scenes under All-frequency Lighting Using Integral Spherical Gaussian (2012)
  • Author(s): Kei Iwasaki
  • Journal Title: Computer Graphics Forum Volume: Vol.31,No.2(To appear)
  • Peer Reviewed
• [Journal Article] 球近似と符号付き球面距離関数による動的シーンのリアルタイムレンダリング (2012)
  • Author(s): 古家瓦
  • Journal Title: 情報処理学会論文誌 Volume: Vol.32,No.7
  • Peer Reviewed
• [Journal Article] An Interactive Rendering System Using Hierarchical Data Structure for Earth-scale Clouds (2010)
  • Author(s): Y. Dobashi, T. Yamamoto, T. Nishita
  • Journal Title: Science in China Series F : Information Sciences Volume: Vol. 53 Pages: 920-931
• [Journal Article] An Interactive Rendering System Using Hierarchical Data Structure for Earth-scale Clouds (2010)
  • Author(s): Y.Dobashi, T.Yamamoto, T.Nishita
  • Journal Title: Science in China Series Vol.53, No.5 Pages: 920-931
  • Peer Reviewed
• [Journal Article] Spherical Harmonic Exponentiationを用いた動的な雲の高速レンダリング (2010)
  • Author(s): 江口, 土橋, 山本, 岩崎
  • Journal Title: 電子情報通信学会論文誌A Vol.J98 A, No.1 Pages: 30-36
  • NAID: 110008007080
  • Peer Reviewed
• [Journal Article] Spherical Hamonic Exponentiationを用いた動的な雲の高速レンダリング (2010)
  • Author(s): 江口千央
  • Journal Title: 電子情報通信学会論文誌A Volume: J98-A Pages: 30-36
  • Peer Reviewed
• [Journal Article] An Interactive Rendering System Using Hierarchical Data Structure for Earth-scale Clouds (2010)
  • Author(s): Yoshinori Dobashi
  • Journal Title: Science in China Series F : Information Sciences Volume: 53 Pages: 920-931
  • Peer Reviewed
• [Journal Article] A Fast Simulation Method Using Overlapping Grids (2008)
  • Author(s): Y. Dobashi, T. Yamamoto, T. Nishita
  • Journal Title: Interactions between Smoke and Rigid Objects Volume: Vol. 23 Pages: 539-546
• [Journal Article] A Fast Simulation Method Using Overlapping Grids for Interactions between Smoke and Rigid Objects (2008)
  • Author(s): Y.Dobashi, Y.Matsuda, T.Yamamoto, T.Nishita
  • Journal Title: Computer Graphics Forum (Proc.EUROGRAPHICS 2008) Vol.23, No.3 Pages: 539-546
  • Peer Reviewed
• [Journal Article] A Fast Simulation Method Using Overlapping Grids for Interactions between Smoke and Rigid Objects (2008)
  • Author(s): Yoshinori Dobashi
  • Journal Title: Computer Graphics Forum 23 Pages: 539-546
  • Peer Reviewed
• [Presentation] An Efficient Calculation Method of Spherical Signed Distance Functions for Real-time Rendering (2011)
  • Author(s): Wataru Furuya
  • Organizer: ACM SIGGRAPH ASIA
  • Place of Presentation: Hong Kong Convention & Exhibition Centre(香港)
  • Year and Date: 2011-12-14
• [Presentation] Real-time Rendering of Endless Cloud Animation (2011)
  • Author(s): K. Iwasaki, T. Nishino, Y. Dobashi
  • Organizer: Pacific Graphics 2011
  • Place of Presentation: The Splendor Hotel(台湾)
  • Year and Date: 2011-09-21
• [Presentation] Real-time Rendering of Endless Cloud Animation (2011)
  • Author(s): Kei Iwasaki
  • Organizer: Pacific Graphics 2011
  • Place of Presentation: The splendor Hotel(台湾)
  • Year and Date: 2011-09-21
• [Presentation] 動的な布に対するアンビエントオクルージョン計算の高速化 (2011)
  • Author(s): 吉川宇穂
  • Organizer: 画像電子学会第39回年次大会
  • Place of Presentation: くにびきメッセ(松江市)
  • Year and Date: 2011-06-26
• [Presentation] 球近似と符号付き球面距離関数による動的シーンのリアルタイムレンダリング (2011)
  • Author(s): 古家瓦
  • Organizer: Visual Computing/グラフィクスとCAD合同シンポジウム2011
  • Place of Presentation: くにびきメッセ(松江市)
  • Year and Date: 2011-06-25
• [Presentation] 雲のエンドレスアニメーションのリアルタイムレンダリング (2011)
  • Author(s): 西野孝則
  • Organizer: Visual Computing/グラフィクスとCAD合同シンポジウム2011
  • Place of Presentation: くにびきメッセ(松江市)
  • Year and Date: 2011-06-25
• [Presentation] An Efficient Calculation Method of Spherical Signed Distance Functions for Real-time Rendering (2011)
  • Author(s): W. Furuya, K. Iwasaki, Y. Dobashi, T. Nishita
  • Organizer: ACM SIGGRAPH ASIA 2011 Technical Sketches
  • Place of Presentation: Hong Kong Convention Center(香港)
• [Presentation] 前計算減衰率カットによる多重散乱を考慮した動的な雲の高速レンダリング (2010)
  • Author(s): 西尾, 岩崎, 土橋
  • Organizer: Visual Computing/グラフィクスとCAD合同シンポジウム2010
  • Place of Presentation: 厚木市
  • Year and Date: 2010-06-26
• [Presentation] Spherical Harmonic Exponentiationを用いた動的な雲の高速レンダリング (2009)
  • Author(s): 江口, 土橋, 山本
  • Organizer: Visual Computing/グラフィクスとCAD合同シンポジウム
  • Place of Presentation: 旭川市
  • Year and Date: 2009-10-17
• [Presentation] 多重散乱を考慮した動的な雲の高速レンダリング (2009)
  • Author(s): 江口千央
  • Organizer: 2009年電気・情報関係学会北海道支部連合大会
  • Place of Presentation: 北見市・北見工業大学
  • Year and Date: 2009-10-17
• [Presentation] Interactive and Realistic Visualization System for Earth-scale Clouds (2009)
  • Author(s): Y. Dobashi, T. Yamamoto, T. Nishita
  • Organizer: Proc. Pacific Graphics 2009
  • Place of Presentation: チェジュ(韓国)
  • Year and Date: 2009-10-07
• [Presentation] Interactive and Realistic Visualization System for Earth-scaleClouds (2009)
  • Author(s): Y.Dobashi, T.Yamamoto, T Nishita
  • Organizer: Pacific Graphics 2009
  • Place of Presentation: 韓国 ・チェジュ
  • Year and Date: 2009-10-07
• [Presentation] Interactive and Realistic Visualization System for Earth-scale Clouds (2009)
  • Author(s): Yoshinori Dobashi
  • Organizer: Pacific Graphics 2009
  • Place of Presentation: 韓国,チェジュ
  • Year and Date: 2009-10-07
• [Presentation] Spherical Harmonic Exponentiationを用いた動的な雲の高速レンダリング (2009)
  • Author(s): 江口千央
  • Organizer: Visual Computing/グラフィクスとCAD合同シンポジウム
  • Place of Presentation: 旭川市・ときわ市民ホール
  • Year and Date: 2009-06-25
• [Presentation] Video Textureを用いた動的な雲の高速レンダリング (2008)
  • Author(s): 江口, 土橋, 山本
  • Organizer: 第7回情報科学技術フォーラム
  • Place of Presentation: 藤沢市
  • Year and Date: 2008-09-02
• [Presentation] Video Textureを用いた動的な雲の高速レンダリング (2008)
  • Author(s): 江口千央
  • Organizer: FIT 2008第7回情報科学技術フォーラム
  • Place of Presentation: 神奈川県藤沢市
  • Year and Date: 2008-09-02
• [Presentation] An Interactive System for Realistic Rendering of Large-Scale Terrains (2008)
  • Author(s): Y.Dobashi, T.Yamamoto, T.Nishita
  • Organizer: ACMSIGGRAPH 2008
  • Place of Presentation: アメリカ・ロサンゼルス
  • Year and Date: 2008-08-13
• [Presentation] An Interactive System for Realistic Rendering of Large-Scale Terrains (2008)
  • Author(s): Yoshinori Dobashi
  • Organizer: ACM SIGGRAPH 2008
  • Place of Presentation: アメリカ・ロサンゼルス
  • Year and Date: 2008-08-13