Indonesian Journal of Electrical Engineering and Computer Science
Vol 12, No 4: April 2014

Adaptive Wallis Filter via Sparse Recognition for Automatic Control Points Extraction

Leilei Geng (Nanjing University of Science and Technology, Nanjing)
Deshen Xia (Nanjing University of Science and Technology, Nanjing)
Quansen Sun (Nanjing University of Science and Technology, Nanjing)
Kai Yuan (Headquarters of Jinan Military Area Command, Jinan)



Article Info

Publish Date
01 Apr 2014

Abstract

With the rapid development of the remote sensing satellite, the size and the resolution of satellite images grow increasingly. The evaluation of remote sensing image quality requires precise information of control points extracted from unevaluated images and reference images. Therefore, we propose an adaptive Wallis filter method based on sparse recognition to increase the number of control points and improve the matching precision. Firstly, feature vectors of images are constructed by computing the image radiation-parameters. Secondly, the classification of sub-region terrain in the image can be determined using sparse recognition. Finally, according to specific type of sub-region terrain, we enhance the regions by the Wallis filter based on corresponding filter parameters and extract control points which would lead to the automatic evaluation for geometric precision. The experiments show that the proposed method can get better results especially in the detail on the images of Resourse-3 satellite, hence can increase the number and improve accuracy of control points. DOI : http://dx.doi.org/10.11591/telkomnika.v12i4.4781

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