Generalized multiple kernel framework for multiclass geospatial objects detection in high-resolution remote sensing images

Xiangjuan Li; Hao Sun; Yu Li; Xian Sun; Hongqi Wang

doi:10.1117/1.OE.51.1.016203

11 February 2012 Generalized multiple kernel framework for multiclass geospatial objects detection in high-resolution remote sensing images

Xiangjuan Li, Hao Sun, Yu Li, Xian Sun, Hongqi Wang

Author Affiliations +

Optical Engineering, Vol. 51, Issue 1, 016203 (February 2012). https://doi.org/10.1117/1.OE.51.1.016203

Abstract

Multiclass geospatial objects detection within complex environments is a challenging problem in remote-sensing areas. In this paper we propose a novel, generalized kernel-based learning framework for the purpose of enhanced object detection. There are two novel areas. (1) Multisource information, including shape, feature points, and appearance, was extracted to give a comprehensive representation of the objects. We improved a shape descriptor and introduced a two-level spatial pyramid to represent appearance, both global and local. Therefore, basis kernels were formed, one for each feature. (2) In order to illustrate the effect of each kind of feature on each pyramid level, a generalized and weighted combination method was first used to combine all of the levels and then the features. The weights and the classifier model are based on the support vector machine framework for obtaining balance between all basis kernels. This classifier was transformed into a powerful detector by using a sliding window. The reported results are for the detection on high-resolution remote-sensing images. This study demonstrates that the proposed generalized and weighted combination of kernels can yield better performance compared with traditional single-kernel classifier and other combination methods.

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Xiangjuan Li, Hao Sun, Yu Li, Xian Sun, and Hongqi Wang "Generalized multiple kernel framework for multiclass geospatial objects detection in high-resolution remote sensing images," Optical Engineering 51(1), 016203 (11 February 2012). https://doi.org/10.1117/1.OE.51.1.016203

Published: 11 February 2012

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