A THREE-DIMENSIONAL MOTION MEASUREMENT SYSTEM

三维运动测量系统

• 批准号: 5204084
• 负责人: H E CASCIO
• 金额: --
• 依托单位: NATIONAL CENTER FOR RESEARCH RESOURCES
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/5204084
• 关键词: biomechanics; biomedical equipment development; charge coupled device camera; video recording system

The Biomechanics Laboratory makes quantitative information concerning human motion available to clinicians and researchers at the NIH. The BEIP has upgraded Dr. Stanhope's Vicon Motion and Image Analysis System by designing and fabricating six video-camera units, each with a variable-intensity, dual-wavelength infrared strobe. The upgrade solved many of the original Vicon system's problems, but fast motion analysis is still limited by the system's slow frame rate of 25 frames per second. The Biomechanics Laboratory requires a system to take data at 2000 frames per second. To satisfy this requirement, Dr. Stanhope requested that the BEIP develop a three-dimensional motion measurement system, using a concept patented by Dr. Andrew Dainis. The funds for this project are from a CRADA and have been placed with the BEIP. In collaboration with the Biomechanics Laboratory and Dr. Dainis, the BEIP will develop, fabricate, and test the system electronics. Dr. Dainis will develop the optics for the CCD linear arrays and the system software. The idea of Dr. Dainis's patent is that each camera has four linear CCD arrays, with each array having a specially designed lens. The arrays are placed on the face of the camera in a special pattern to translate a light source from a target into its spatial coordinates.

生物力学实验室提供有关以下方面的定量信息 美国国立卫生研究院的临床医生和研究人员可以使用人体运动。这个 BEIP升级了Stanope博士的VICON运动和图像分析 系统通过设计和制造六个摄像机单元，每个单元都有 一种可变强度、双波长的红外闪光灯。升级 解决了最初的维康系统的许多问题，但速度很快 分析仍然受到系统25帧的缓慢帧速率的限制 每秒。生物力学实验室需要一个系统来采取 以每秒2000帧的速度传输数据。为了满足这一要求，Dr。 斯坦霍普要求BEIP开发一个三维运动 测量系统，使用安德鲁·戴尼斯博士的专利概念。 该项目的资金来自CRADA，并已放置在 BEIP。与生物力学实验室和Dr。 Dainis，BEIP将开发、制造和测试该系统 电子产品。戴尼斯博士将开发用于CCD线阵的光学元件 阵列和系统软件。Dainis博士的专利的想法是 每个摄像机有四个线阵CCD，每个阵列有一个 特别设计的镜头。数组被放置在 一种特殊图案的摄像机，用于将光源从目标上平移 转换成它的空间坐标。