A flexible high-precision video system for digital recording of motor acts through lightweight reflex markers

被引：35

作者：

Josefsson, T

Nordh, E

Eriksson, PO

机构：

[1] UMEA UNIV,NORLAND UNIV HOSP,DEPT CLIN NEUROPHYSIOL,S-90187 UMEA,SWEDEN

[2] QUALISYS AB,S-43330 PARTILLE,SWEDEN

[3] UMEA UNIV,DEPT CLIN ORAL PHYSIOL,S-90187 UMEA,SWEDEN

来源：

COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE | 1996年 / 49卷 / 02期

关键词：

opto-electronic measurements; motion analysis; motor control; neurology; dentistry; orthopaedics; phonetics;

D O I：

10.1016/0169-2607(96)01715-4

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper describes and evaluates the digital MacReflex(TM) system for wireless recording of movements in three dimensions. Up to seven high resolution infra-red sensitive CCD video cameras with electronic shutters register the positions of maximally 40 stroboscopically illuminated retro-reflective tape markers. The system is equipped with real-time video processors for computation of position co-ordinates for the markers and for optimised data transmission and storage. Data are output to any type of computer through a standard serial interface, which also provides possibilities for simultaneous A/D-sampling. Dynamic manipulation of the recorded signals in three-dimensional plots is provided by standard software and transformation and evaluation of recorded data are performed in standard software. The described equipment is found to offer a flexible and easily operated solution for recording of movements with high resolution.

引用

页码：119 / 129

页数：11

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