Kernel uncorrelated neighborhood discriminative embedding for feature extraction

Xuelian Yu; Xuegang Wang

doi:10.1117/1.2821866

1 December 2007 Kernel uncorrelated neighborhood discriminative embedding for feature extraction

Xuelian Yu, Xuegang Wang

Author Affiliations +

Optical Engineering, Vol. 46, Issue 12, 120502 (December 2007). https://doi.org/10.1117/1.2821866

Abstract

Feature extraction is a crucial step for pattern recognition. Recently, some manifold learning algorithms have drawn much attention. Although their properties of locality preserving are fairly significant, most manifold-based algorithms have limits to solve classification problems. First, they do not have good discriminant ability. Second, they fail to remove the redundancy among the extracted features. We present a new feature extraction method, called kernel uncorrelated neighborhood discriminative embedding (KUNDE), which integrates two abilities of manifold learning and pattern classification. The purpose of KUNDE is to preserve the within-class neighboring geometry while maximizing the between-class scatter. Optimizing an objective function in a kernel feature space, nonlinear features are extracted. Moreover, by putting a simple uncorrelated constraint on the computation of the basis vectors, the extracted features via KUNDE are statistically uncorrelated and thus contain minimum redundancy. Experimental results on radar target recognition indicate the promising performance of the proposed method.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Xuelian Yu and Xuegang Wang "Kernel uncorrelated neighborhood discriminative embedding for feature extraction," Optical Engineering 46(12), 120502 (1 December 2007). https://doi.org/10.1117/1.2821866

Published: 1 December 2007

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KEYWORDS

Feature extraction

Detection and tracking algorithms

Radar

Target recognition

Associative arrays

Pattern recognition

Image classification

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