Abstract

Obtaining depth information from stereopsis and obtaining motion information from image sequences are two closely related problems. This paper presents a theory for stereo and motion from images based on line correspondences. It has been known as an aperture problem where unique point correspondences in the image cannot be obtained locally except for special points such as corners. In fact, the Moravec interest operator tries to detect such points whose correspondence can be more readily determined than others. Therefore, in order to establish point correspondences, certain other global consistency constraints have been introduced, for example, minimizing overall smoothness or minimizing distortion energy.

© 1985 Optical Society of America