Camera Settings for Dimensional Inspection Using Displacement and Quantization Errors

K. L. Crosby and C. C. Yang

Department of Electrical and Computer Engineering

F. W. Ciarallo

Department of Systems and Industrial Engineering

M. M. Marefat

Department of Electrical and Computer Engineering

University of Arizona
Tucson, Arizona 85721


An important aspect of inspection planning involves determining camera poses based on some criterion. We seek to find camera poses where the effects of displacement and quantization errors are minimal. The mean squared error is formulated, including all dependencies, and minimized to determine an optimal camera pose that satisfies the sensor constraints of resolution, focus, field-of-view, and visibility. Dimensional tolerances for line entities are also formulated and exploited to determine the acceptability of a given camera pose for all entities observed.