Acta Geodaetica et Cartographica Sinica ›› 2016, Vol. 45 ›› Issue (2): 178-185.doi: 10.11947/j.AGCS.2016.20150030

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Interest Point Detection for Multispectral Remote Sensing Image Using Phase Congruency in Illumination Space

CHEN Min1 2, ZHU Qing1, ZHU Jun1, XU Zhu1 3 4, HUANG Lanxin1   

  1. 1. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China;
    2. Sichuan Engineering Research Center for Emergency Mapping & Disaster Reduction, Chengdu 610041, China;
    3. Collaborative Innovation Center for Rail Transport Safety, Chengdu 610031, China;
    4. State-Province Joint Engineering Laboratory of Spatial Information Technology for High-speed Railway Safety, Chengdu 610031, China
  • Received:2015-01-20 Revised:2015-08-29 Online:2016-02-20 Published:2016-02-29
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41471320;41501492);The Science and Technology Program of Sichuan Province of China (Nos. 2014SZ0106;2015SZ0046);The Open Research Fund by Sichuan Engineering Research Center for Emergency Mapping & Disaster Reduction (No. K2015B006);The Open Research Fund of State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (No. (14) Key 03);The Program for Changjiang Scholars and Innovative Research Team in University (No. IRT13092)

Abstract: A robust interest point detection algorithm based on illumination space and phase congruency is proposed in this paper. Firstly, image illumination space is constructed by using a parameters adaptive method. Secondly, a phase congruency based interest point detection algorithm is adopted to compute candidate points in illumination space. Then, all interest point candidates are mapped back to the original image and a non-maximum suppression step is added to find final interest points. Finally, the feature scale values of all interest points are calculated based on the Laplacian function. The proposed algorithm combines the advantages of illumination space and phase congruency, which makes the proposed method robust to the radiation variation of multispectral images. The experimental results show that the proposed method performs better than other traditional methods in feature repeatability rate and repeated features number.

Key words: phase congruency, illumination space, multispectral remote sensing image, interest point detection

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