New Class Of Features For Pattern Recognition And Image Analysis

W.Clay Choate

doi:10.1117/12.946578

11 July 1985 New Class Of Features For Pattern Recognition And Image Analysis

W.Clay Choate

Proceedings Volume 0534, Architectures and Algorithms for Digital Image Processing II; (1985) https://doi.org/10.1117/12.946578
Event: 1985 Los Angeles Technical Symposium, 1985, Los Angeles, United States

Abstract

A class of features, called "edge features," has been developed and applied to several problems of practical interest in image processing. These features are derived from a vector-valued function of the image called the "edge spectrum-" The edge spectrum at coordinate (x.,y) of the image describes the distribution of edge directions near (x,y). Several applications of edge features are discussed. One is considered in some detail. This application is to identify friendly aircraft descending for landing on an aircraft carrier. Identification is achieved by measuring wingspan - a good discriminant between the A6, A7, E2C and F.14. aircraft. For this purpose an edge feature was designed for locating the wing tips in the image. Wingspan was converted to physical dimension using range information and the known parameters of the optical system.

Citation Download Citation

W.Clay Choate "New Class Of Features For Pattern Recognition And Image Analysis", Proc. SPIE 0534, Architectures and Algorithms for Digital Image Processing II, (11 July 1985); https://doi.org/10.1117/12.946578

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