PHYSICS MODEL-BASED NON-PHOTOREALLSTIC IMGE RENDERING AND INTELLIHENT CODING

基于物理模型的非真实感图像渲染和智能编码

• 批准号: 17300038
• 负责人: OKADA Minoru
• 金额: $ 8.67万
• 依托单位: WASEDA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17300038/
• 关键词: COMPUTER GRAPHICS; PHYSICS MODEL-BASED; VIRTUAL REALITY; NON-PHOTOREALISTIC RENDERING; VIRTUAL PRINT-SCULPTURE; ARTIFICIAL INTELLIGENCE; SHAPE MODELING; SHAPE RENDERING IN VIRTUAL WORLD; グラフィクス

NON-PHOTOREALISTIC RENDERING TECHNIQUES (NPR) IS UTILIZED IN VARIOUS VISUALIZATION TECHNIQUES, BUT RECENTLY THE APPLICATIONS IN THE AREA OF ART AND SCULPTURE ARE INVESTIGED. THE PURPOSE OF THIS PROJECT IS TO RENDER THESE NPR IMAGES BY USING PHYSICAL MODEL RENDERING TECHNIQUES AND TO CODE THESE EXISTING SCULPTURES AT HIGH LEVEL FIRST, BASED ON PHYSICS-BASED RENDERING (PBR), WE DEVELOPED COMPUTER GRAPHICS IMAGE RENDERING TECHNIQUES BY USING WOODEN SCULPTURES, WOODBLOCK PRINTS, COPPERPLATE PRINT AND ESPECIALLY WE DEVELOPED A USER INTERFACE OF RENDER THE WOODBLOCK PRINTS. AND WE TRY TO RENDER THESE WORKS BY SIMULATING PHYSICALLY PROCESS AND PHENOMENON OF HIGH LEVEL ART TECHNIQUES CALL DRYPOINT. THIS RESEARCH IS EVALUATED BY THE SPECIALISTS AT DEPARTMENT OF ART, KYUSHU SANGYO UNIVERSITY AND OBTAINED THE RESULT OF EFFECTIVENESS. NEXT, WE DEVELOPED BASIC TECHNIQUES AND DESIGN OF NEXT-GENERAIION CAR NAVIGATION SYSTEM. WE PROPOSED A NEW METHOD USING AN AUGMENTED REALITY FOR THE CAR NAVIGATION BASED ON FULL CG WITH EXISTING SECONDARY STORAGE. WE DEVELOP TO CONSTRUCT A VIRTUAL WORLD BY CODING FRONT IMAGES TAKEN BY AN ONBOARD CAMERA USING COMPUTER VISION TECHNIQUES. THIS REALIZED A COMMUNICATION METHOD OF REALTIME INFORMATION EFFECTIVELY BY RENDERING IMAGES AT THE SAME GAZE POINT IN THE VIRTUAL WORLD AND DISPLAYING THEM TO DRIVERS. FINALLY, FOR RENDERING NON-PHOTOREALISTIC IMAGES, CONCENTRATING ON COPPERPLATE PRINT, ESPECIALLY MEZZOTINT, WE REALIZED PHYSICS MODEL DESIGN AND IMAGE RENDERING TECHNIQUES. HERE WE TRY TO RECONSTRUCT MEZZOTINT TECHNIQUES HAVING ABILITIES OF VARIOUS GRAY LEVEL REPRESENTATIONS BY TWO KINDS OF INTERMEDIATE EXPRESSION IMAGES. AS A RESULT, WE CONFIRMED THE PROPOSED METHOD CAN RENDER PBR IMAGES IN PHYSICALLY GOOOD MEZZOTINT WORKS.

非真实感渲染技术（npr）在各种可视化技术中都有应用，但最近在艺术和雕塑领域的应用被研究。本项目的目的是利用物理模型渲染技术对这些NPR图像进行渲染，并首先对这些现有的雕塑进行高层次的编码，在基于物理渲染（physical - based rendering, pbr）的基础上，我们开发了利用木雕、木版版画、铜版版画进行计算机图形图像渲染的技术，特别是开发了一个木版版画渲染的用户界面。我们试图通过模拟物理过程和现象来渲染这些作品，这是一种高层次的艺术技术，叫做干点。本研究由九州工业大学美术系专家进行评估，取得成效。其次，我们开发了下一代汽车导航系统的基本技术和设计。我们提出了一种基于全CG和现有辅助存储的增强现实汽车导航方法。利用计算机视觉技术对车载摄像头拍摄的正面图像进行编码，构建虚拟世界。通过在虚拟世界中绘制同一注视点的图像并显示给驾驶员，有效地实现了一种实时信息的交流方法。最后，针对非真实感图像的渲染，以铜版印刷尤其是凹版印刷为重点，实现了物理模型设计和图像渲染技术。本文试图通过两种中间表达图像重构具有不同灰度表示能力的中间着色技术。结果表明，本文提出的方法可以在物理效果良好的中色作品中呈现PBR图像。

项目成果

A CG Animation Generation Platform Concealing Dynamics Inverstigation

隐藏动力学研究的CG动画生成平台

• 发表时间: 2006
• 作者: K.Shibata;M.Okada
• 通讯作者: M.Okada

Physical Model to Achieve Virtual Mezzotint

实现虚拟铜版铜版画的物理模型

• 发表时间: 2007
• 期刊: IPSJ Journal 48
• 作者: D.Tasaki;M.Katou;S.Mizune;M.Okada
• 通讯作者: M.Okada

A Study on a Geometry Transformation Method for a Geometry and Scene Modeler by a Verbal Interface

通过语言界面进行几何和场景建模的几何变换方法的研究

• 发表时间: 2006
• 期刊: SIGGRAPH : ACM Special Interest Group on Computer Graphics and Interactive Techniques 1
• 作者: Y.Yanai;M.Okada
• 通讯作者: M.Okada

仮想銅版画における油膜の影響を考慮した着色モデル

考虑油膜影响的虚拟铜版画着色模型

• 发表时间: 2007
• 作者: 田崎大輔;加藤恵;水野慎士;岡田稔
• 通讯作者: 岡田稔

高次情報を利用した数式文字誤認識訂正における候補文字数の影響

候选字符数量对使用高阶信息纠正数学字符识别错误的影响

• 发表时间: 2007
• 作者: 瀧口祐介;岡田稔;三宅康二
• 通讯作者: 三宅康二