The Representation and Matching of Pictorial Structures
Martin A. Fischler, R. Elschlager · IEEE Transactions on Computers · 1973
The primary problem dealt with in this paper is the following. Given some description of a visual object, find that object in an actual photograph. Part of the solution to this problem is the specification of a descriptive scheme, and a metric on which to base the decision of "goodness" of matching or detection.