Research on the Evaluation of Color Space and Developing Three Dimensional Color Simulator.

本研究的主要目的是收集准确的、基础的色彩认知数据，以探索最适合色盲人士和老年人的城市公共空间色彩环境。本研究分为两部分。首先是开发一个“三维色彩可达性模拟器”，它能够利用立体视觉尽可能自然地虚拟地实现我们在实验室中的环境。第二是在受控条件下评估色彩空间。为此，许多被测试者的承诺是预期的。在2004年、2005年和2006年第一季度，我们调查了拍摄、处理和投影设备的最合适组合，以实现尽可能准确、自然地显示任意两个主体之间的距离、主体的大小和视角的自然图像。考虑到系统的规格，我们将距离范围分为近距离（2m-5m）、中距离（5m-20m）和远距离（超过20m）三部分，并分别研制了样机。通过这些原型，我们建立了在5m - 20m范围内拍摄、编辑和投影立体图像的标准系统，这是研究城市公共空间、街道角落等物体最有效的范围。我们建立了图像中特定对象的颜色模拟标准程序，例如道路标志，街道地图，指示地铁入口和公交车站的标志。老年人（65岁以上）和年轻人（19-21岁）被分为两组，分别对物体的原始颜色和模拟颜色进行评价。目前正在对这些数据进行分析。由于三维色彩可达性模拟器可以同时向一定数量的被测者展示虚拟空间，我们未来的工作是收集更多的数据，例如对标志的颜色组合进行分类，找到适合老年人和色盲的安全颜色。

The main purpose of the research is to collect precise and fundamental data on color cognition in order to investigate most suitable color environment, especially in urban public spaces, for persons with color blindness and older persons. The research consists of two parts. The first is to develop a "three dimensional color accessibility simulator", which is capable to virtually realize our surroundings in the lab as natural as possible by using stereoscopy. The second is to evaluate color spaces under controlled conditions. For this purpose, a number of testee's commitment is expected.In 2004, 2005 and in the first quarter of 2006, we investigated to find out the most suitable combination of shooting, processing and projecting equipment for realizing natural images which show the distance between any two subjects, the sizes of subjects and the perspectives as precisely and naturally as possible. To consider the specification of the system, we divide distance range into three parts, such as near range (2m-5m), middle range (5m-20m) and far range (over 20m), We also developed some prototypes respectively.By using these prototypes, we established the standard system to take, to edit and to project stereo images in the range among 5m to 20m, which is the most effective range to investigate objects in urban public spaces, corners of streets for example. We established the standard procedure for color simulation on certain objects in images, such as road signs, street maps, sings to indicate subway entrance and bus stops. The two groups of testees, the elderly (over 65) and the young (19-21), evaluated original colors and simulated colors of objects. This data is currently being analyzed.As the three-dimensional color accessibility simulator is able to show virtual space to some number of testees simultaneously, our future work is to collect more data to classify combination of colors of signs for example and to find some safe colors for the elderly and the color blind.