A Counterexample to Perception of Structure from Motions
Chia-Hoang Lee · Purdue e-Pubs (Purdue University System) · 1986
ABSI"RACFThe paper of "Perception of Structure from Motion" [1][2] studied the lower bound issues of Structure from Motion.The key result is that the authors showed that two orthographic projections of four noncoplanar points admit only four interpretations of structure.11tis forms the basis for an algorithm (see abstract [1][2]).Unfortunately, the result is flawed.In this note, we present a counlerexample which has at least five solutions.