PPD: Scientific Visualization Using Tactile Feedback for Visually Impaired Students

PPD：为视障学生使用触觉反馈进行科学可视化

• 批准号: 9610289
• 负责人: Anshuman Razdan
• 金额: $ 20.46万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-01 至 2000-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9610289&HistoricalAwards=false
• 关键词: PPD; Scientific; Visualization; Using; Tactile

PI: Anshuman Razdan Scientific visualization provides scientists with tools to model and visually observe three dimensional data. This technique has advanced scientific understanding in numerous scientific fields such as biology, chemistry and engineering. The traditional method of visualization is to model the data into one of the many surface modeling schemes and display the data on a computer screen. This approach has obvious limitations for people that are visually impaired. This project will test a novel way to provide analogous information to these individuals whether they are students, scientists or researchers. Data are modeled in the normal manner, but instead of displaying the model on a computer screen, a three-dimensional wax-based model will be created. The data, after being geometrically modeled, will be converted into a physical model using a Layered Manufacturing (Rapid Prototyping) machine. The tactile model will maintain the appropriate ratios so as not to distort the proportions of the data. A Scanning Probe Microscope (SPM) has been chosen as the test-bed to provide 3D data. A SPM is used to probe objects on a nano scale and its output is inherently three dimensional. The only way to currently observe experiments and data performed on SPM is a visual display on a screen. With the proposed technique, a visually impaired student will be able to feel the surface representation of the 3D data on the physical model as seen on a SPM. The use of 3D physical models for tactile feedback will be developed in three Arizona State University classes: a junior level course in Chemical Engineering, a sophomore level course in Physical Science for in-service and preservice teachers, and a junior level interdisciplinary science course. Activities will be created to demonstrate the viability, importance and success of this project. Workshops will be organized to bring educators, scientists, special education teachers and students to both evaluate and provide input to this project. The project has broad implications for science education for all students because they will be able to touch, feel and observe tangible three- dimensional data models.

PI：Anshuman Razdan 科学可视化为科学家提供了建模和可视化观察三维数据的工具。 这项技术在许多科学领域，如生物学，化学和工程学，有先进的科学认识。 传统的可视化方法是将数据建模为许多曲面建模方案之一，并将数据显示在计算机屏幕上。 这种方法对视力受损的人有明显的局限性。 该项目将测试一种新的方法，为这些人提供类似的信息，无论他们是学生，科学家还是研究人员。 数据以正常的方式建模，但不是在计算机屏幕上显示模型，而是创建一个三维蜡基模型。 数据在几何建模后，将使用分层制造（快速原型）机器转换为物理模型。 触觉模型将保持适当的比例，以免扭曲数据的比例。 扫描探针显微镜（SPM）已被选为测试平台，以提供三维数据。 SPM用于探测纳米尺度的物体，其输出本质上是三维的。 目前观察SPM上进行的实验和数据的唯一方法是在屏幕上进行视觉显示。 与所提出的技术，视障学生将能够感受到的表面表示的三维数据的物理模型上看到的SPM。 使用3D物理模型的触觉反馈将在三个亚利桑那州州立大学类开发：初级课程化学工程，物理科学的在职和兼职教师的大二水平的课程，和初级跨学科科学课程。 将创建活动来证明该项目的可行性、重要性和成功。 将举办讲习班，让教育工作者、科学家、特殊教育教师和学生对这一项目进行评估并提供投入。 该项目对所有学生的科学教育具有广泛的影响，因为他们将能够触摸，感受和观察有形的三维数据模型。