Abstract

Having a good measuring range and requiring only simple equipment and working conditions, moire topography has been widely used in measuring 3-D objects of large area and out-of-plane deformations of objects. It is limited, however, in its more accurate measurements because of the lower measuring sensitivity which is inversely proportional to its measuring depth, especially in measuring dynamic deformations of objects. An optical information processing method solving this problem is proposed.

© 1987 Optical Society of America