LINE SEGMENT-BASED AXIAL MOTION STEREO

Axial motion stereo possesses some significant advantages over the mor e popular lateral stereo. While all earlier works involving the axial motion stereo model have used point-like features as matching primitiv es, we propose in this paper a line segment based matching technique. We discuss various matching constraints applicable to line segments un der the axial stereo model. In particular, we prove that the orientati ons of corresponding two dimensional (2D) line segments stemming from the same 3D line segment tend to the equal. Our correspondence finding algorithm consists of a local matching procedure based on a number of constraints and a subsequent global disambiguation process. The metho d has been implemented, and the results are very promising.