数字图象测量系统灵敏度分析  

RESOLUTION ANALYSIS OF DIGITAL IMAGE MEASUREMENT SYSTEM

作　　者：高建新[1] 周辛庚[2] 

机构地区：[1]同济大学生物医学工程研究所,上海200092 [2]清华大学工程力学系,北京100084

出　　处：《固体力学学报》1997年第2期163-166,共4页Chinese Journal of Solid Mechanics

基　　金：上海市自然科学基金

摘　　要：在目前常规图象分辨率基础上，对数字图象相关测量方法的灵敏度进行分析，给出了位移和应变测量的灵敏度，并讨论了影响灵敏度的有关因素．进而指出，数字图象测量系统特别适合于各种位移场和大变形场的定量测量，在配制了相应的光学观察仪器后，也基本适合一般变形场的测量．Based on the conventional image resolution, an analysis for the measurement resolu-tion of porrelative system with digital image is presented. The sensitivities of displacement and strainmeasurement are pointed out, and the factors affecting these sensitivities are discussed. As a result,it can be concluded that the digital image measurement system is particularly suituble for the quantitutive measurement of various displacement and large deformation. To allocate a related observingapparatus, it can be applied to general deformation measurement.

关 键 词：数字相关 变形测量 灵敏度 光测法 

分 类 号：O348.1[理学—固体力学]