CGV: Small: High-Fidelity Representation of Architectural Material Appearance

人类不断地根据物质的外观对世界做出判断（例如，某物是旧的还是新的，干净的还是脏的，软的还是硬的？）材料外观编辑器是生成合成逼真图像的任何软件系统的基本功能。越来越多的应用程序依赖于逼真的图像-设计，历史重建，培训和娱乐-依赖于高视觉质量的渲染。最终，人类的感知决定了高视觉保真度的要求。然而，很少有研究将人类对材料的感知建模成一种可以应用于计算机图形渲染系统的形式。在这个项目中，研究人员正在进行一系列的物理和心理物理实验，目的是开发一种适用于计算机图形学的材料外观模型。重点是一类具有明显经济影响的材料——建筑设计中使用的材料。这项工作通过提供高质量的建筑材料可视化，有望对建筑设计和材料制造产生重大影响。通过允许研究人员以物理精度和感知保真度模拟材料外观，它将加速建筑材料的开发。此外，心理物理实验将为人类视觉提供新的见解。这项工作的目标是产生一个材料外观模型，为视觉模拟的材料的有效建模、测量和表示提供信息。在开发该模型的过程中获得的结果包括：-一种特别适合测量建筑材料外观性能的仪器。-对材料感知的心理物理测量，包括建筑应用中典型的方向、规模和环绕效应。-基于将心理物理测量应用于物理数据的简化材料模型。-验证简化材料模型视觉准确性的实验结果。-一个用于建筑应用材料外观的物理和心理物理测量的公共数据库。

Humans are constantly making judgments about the world based on material appearance (e.g. is something old or new, clean or dirty, soft or hard?). A material appearance editor is an essential feature in any software system for generating synthetic photorealistic images. Increasingly the applications that rely on photorealistic imagery -- design, historical reconstruction, training, and entertainment -- depend on renderings of high visual quality. Ultimately human perception determines what is required for high visual fidelity. However, very little work has been done modeling human perception of materials in a form that can be applied to computer graphics rendering systems. In this project, the researchers are conducting a series of physical and psychophysical experiments with the goal of developing a material appearance model that is applicable to computer graphics. The focus is a class of materials with clear economic impact -- materials used in architectural design. This work holds promise of a strong impact on architectural-design and material manufacture by providing high-quality visualization of architectural materials. It will accelerate developing architectural materials by allowing researchers to simulate material appearance with physical accuracy as well as perceptual fidelity. Additionally, the psychophysical experiments will provide new insights into human vision.The goal of this work is to produce a material appearance model that informs the efficient modeling, measurement and representation of materials for visual simulation. The results obtained in the process of developing this model include:- an apparatus particularly suited to measuring architectural material appearance properties.- psychophysical measures of the perception of materials accounting for directional, scale, and surround effects that are typical of architectural applications.- simplified material models, based on applying psychophysical measures to physical data.- experimental results verifying the visual accuracy of simplified material models.- a common database for both physical and psychophysical measures of material appearance for architectural applications.