Hyperspectral Image Classification Based on Compound Kernels of Support Vector Machine

Yuyong Cui ⁺, Zhiyuan Zeng and Bitao Fu
_{Digital Engineering and Simulation Research Center, Huazhong University of Science and Technology, Wuhan 430074, China}

Abstract. Support vector machine is a  kind of pattern classification  algorithm based on the statistics learning theory. This paper proposes to estimate abundances from hyperspectral image using probability outputs of support vector machines (SVM), training a SVM with a gauss kernel function,and we discussed the relationship between kernel functions and nonlinear mappings and mapped spaces. Then, a new kernel - compound kernel function is given. We applied the kernel in SVM and compared the kernel with other kernels in Hyperspectral image classification, and give a comparison  with some result  to present the validation in remote sensing, the result shows the evidence to the validity of the method and shows that this method is more accurate than the other method, which has a more accurate result.

Keywords: support vector machine, compound kernels, hyperspectral image, classification, accuracy

In: Wan, Y. et al. (eds) Proceeding of the 8th international symposium on spatial accuracy assessment in natural resources and environmental sciences, World Academic Union (Press).