A posteriori multiresolution-based kernel orthogonal subspace technique for supervised texture segmentation

G. H. Lee; T. W. Hsieh; J. S. Tsaur; Chin-Wang Tao

doi:10.1117/1.2957049

1 July 2008 A posteriori multiresolution-based kernel orthogonal subspace technique for supervised texture segmentation

G. H. Lee, T. W. Hsieh, J. S. Tsaur, Chin-Wang Tao

Author Affiliations +

Optical Engineering, Vol. 47, Issue 7, 077006 (July 2008). https://doi.org/10.1117/1.2957049

Abstract

We propose an a posteriori kernel orthogonal subspace technique to segment texture images. It is a nonlinear version of the signature subspace classifier (SSC) derived on the basis of an unconstrained least-square estimation. In this approach, the linear subspace mixture model for the SSC is first reformulated in feature space via nonlinear mapping. Then the SSC in feature space is kernelized in terms of the kernel functions so that the dot products in the high dimensional feature space can be implicitly calculated by kernels. The obtained kernel SSC (KSSC) is equivalent to a nonlinear SSC in the input space. After that, the KSSC is applied to segment the texture images. To reduce the computational requirement in segmentation, the multiresolution-based technique (MKSSC) is developed. Experimental results demonstrate that the proposed MKSSC approach can effectively segment texture images and outperforms the MSSC method.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

G. H. Lee, T. W. Hsieh, J. S. Tsaur, and Chin-Wang Tao "A posteriori multiresolution-based kernel orthogonal subspace technique for supervised texture segmentation," Optical Engineering 47(7), 077006 (1 July 2008). https://doi.org/10.1117/1.2957049

Published: 1 July 2008

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KEYWORDS

Image segmentation

Target detection

Optical engineering

Fuzzy logic

Matrices

Feature extraction

Detection and tracking algorithms

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