This paper introduces a simple new approach to object recognition from silh
ouettes. This new approach utilizes features extracted using an adaptive ap
proximation technique called high-resolution pursuit (HRP). In this work, a
comparatively small set of HRP features and a simple recognition scheme ar
e used. We demonstrate the strengths of the HRP-based recognition scheme by
discriminating among 17 military aircraft. The HRP-based algorithm matches
the performance of a widely studied method based on Fourier descriptors in
the presence of boundary, scale and orientation variations, and surpasses
the performance of the Fourier descriptor-based algorithm in the presence o
f occlusion and localized silhouette variations. (C) 1999 Pattern Recogniti
on Society. Published by Elsevier Science Ltd. All rights reserved,