Introducing the Concept of Affordance to Modeling Objects and Environment and Presentation of Them

将可供性概念引入对象和环境建模及其呈现

• 批准号: 12480087
• 负责人: KITAHASHI Tadahiro
• 金额: $ 7.1万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-12480087/
• 关键词: Improvement of IBR; functional model; affordance of shadow; affordance enhancements; アフォーダンス; Image Based Rendering; メディア工学; ヒューマンインタフェース; ナビゲーションシステム; ルールベース; 機能

Improvement of information representation using the virtual or mixed reality is the aim of this project through solving the problem by applying the concept of affordance to them. By improving several technological difficulties with respect to the illumination, the first result is obtained in solving the difficulty in changing illumination conditions, especially renewal of highlight points on objects in a new environment, in IBR or Image Based Rendering. In order to determine the locations of the highlight points in a new illumination circumstance, the surface normal of a pixel is calculated on the basis of the principle of the shading-difference stereo proposed by Ikeuchi in 1981. This is the first theoretically based proposal for the problem. In connection with illumination problems, the effect of shadows of objects in could be defined as a kind of affordance for recognizing the relative locations between objects and a plane for example.Also a new reflection scheme of a light source with a certain size like the sun is proposed for a special effect of its reflection on a rough plane like the sunrise and sunset reflection on the sea and the lake. Moreover, the relationship of the functional object-model and affordance is tested in recognizing objects in a scene. That is, the question is which the major component in searching an intended object in usual life is, either function or shape?Furthermore, the new concept of affordance enhancement is introduced to create a novel interpretation of existing indications such as lines on a road for separate lanes and noticing boundaries.

本项目的目的是通过将启示的概念应用于解决问题，使用虚拟或混合现实来改善信息表示。通过对光照方面的几个技术难点的改进，首次解决了IBR或基于图像的绘制中光照条件变化，特别是在新环境中物体上亮点更新的困难。为了在新的光照条件下确定高光点的位置，根据Ikeuchi于1981年提出的阴影差立体原理计算像素的表面法线。这是第一个以理论为基础的建议。在照明问题中，物体的阴影效应可以被定义为一种启示，用于识别物体与平面之间的相对位置，并提出了一种新的反射方案，该方案中的光源具有一定的尺寸，如太阳，其反射在粗糙的平面上的特殊效果，如日出和日落反射在大海和湖泊上。此外，在识别场景中的对象的功能对象模型和启示的关系进行了测试。也就是说，问题是，在日常生活中，寻找一个想要的物体的主要组成部分是什么，是功能还是形状？此外，引入了可供性增强的新概念，以创建对现有指示的新颖解释，例如道路上的单独车道线和注意边界。

项目成果

K.Tokoi et al.: "An Improved Scan-line Algorithm for Display of CSG Models"Proc. of Information VISUALISATION (IV2001). 477-482 (2001)

K.Tokoi 等人：“用于显示 CSG 模型的改进扫描线算法”Proc。

Shinobu HASEGAWA: "Reorganizing Learning Resources on WWW and Its Application to an Adaptive Recommendation for Navigational Support"The Transactions of the Institute of Electronics, Information and Communication Engineers. Vol.J83-D-I, No.6. 671-681 (200

Shinobu HASEGAWA：“重新组织 WWW 上的学习资源及其在导航支持自适应推荐中的应用”电子、信息和通信工程师学会会刊。

K.Tokoi, T.Kitahashi: "An Improved Scan-line Algorithm for Display of CSG Models"Proc.of Information VISUALISATION (IV2001). 477-482 (2001)

K.Tokoi、T.Kitahashi：“用于显示 CSG 模型的改进扫描线算法”Proc.of Information VISUALIZATION (IV2001)。

長谷川忍 他: "wwwにおける学習リソースの組織化とナビゲーション支援"電子情報通信学会論文誌. J83-D-l・6. 671-681 (2000)

Shinobu Hasekawa 等人：“www 上的学习资源和导航支持的组织”电子信息通信工程师学会汇刊 J83-D-l・6 (2000)。

沈 黎 他: "三枚画像から任意照明条件下における実画像の生成"電子情報通信学会技術研究報告. 101・653. 67-74 (2002)

Shen, Li 等：“根据三幅图像生成任意光照条件下的真实图像”IEICE 技术研究报告 101・653 (2002)。