Generalized feature detection using the Karhunen-Loeve transform and expansion matching

Zhiqian Wang; Raghunath K. Rao; Dibyendu Nandy; Jezekiel Ben-Arie; Nebosja Jojic

doi:10.1117/12.233257

27 February 1996 Generalized feature detection using the Karhunen-Loeve transform and expansion matching

Zhiqian Wang, Raghunath K. Rao, Dibyendu Nandy, Jezekiel Ben-Arie, Nebosja Jojic

Proceedings Volume 2727, Visual Communications and Image Processing '96; (1996) https://doi.org/10.1117/12.233257
Event: Visual Communications and Image Processing '96, 1996, Orlando, FL, United States

Abstract

This paper presents a novel generalized feature extraction method based on the expansion matching (EXM) method and the Karhunen-Loeve (KL) transform. This yields an efficient method to locate a large variety of features with reduced number of filtering operations. The EX method is used to design optimal detectors for different features. The KL representation is used to define an optimal basis for representing these EXM feature detectors with minimum truncation error. Input images are then analyzed with the resulting KL bases. The KL coefficients obtained from the analysis are used to efficiently reconstruct the response due to any combination of feature detectors. The method is applied to real images and successfully extracts a variety of arc and edge features as well as complex junction features formed by combining two or more arc or line features.

Citation Download Citation

Zhiqian Wang, Raghunath K. Rao, Dibyendu Nandy, Jezekiel Ben-Arie, and Nebosja Jojic "Generalized feature detection using the Karhunen-Loeve transform and expansion matching", Proc. SPIE 2727, Visual Communications and Image Processing '96, (27 February 1996); https://doi.org/10.1117/12.233257

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KEYWORDS

Sensors

Feature extraction

Image segmentation

Image filtering

Image analysis

Edge detection

Error analysis

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