PolSAR remote sensing image method for building extraction based on polarization and texture characteristics

doi:10.7523/j.issn.2095-6134.2019.05.014

›› 2019, Vol. 36 ›› Issue (5): 682-693.DOI: 10.7523/j.issn.2095-6134.2019.05.014

• Research Articles • Previous Articles Next Articles

PolSAR remote sensing image method for building extraction based on polarization and texture characteristics

MA Xiaoxiao^1,2, CHENG Bo¹, LIU Yueming³, CUI Shiai¹, LIANG Chenbin^1,2

1. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100094, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China

Received:2018-03-19 Revised:2018-05-08 Online:2019-09-15

Abstract

Abstract: Polarimetric synthetic aperture radar (PolSAR) plays an important role in the field of building extraction because of its multi-parameter, multi-channel, multi-polarization, and rich information records. Taking Radarsat-2 image of Suzhou in 2017 as an example,19 polarization features and 8 texture features are extracted by polarization non-coherent decomposition methods and GLCM, respectively. Based on the analysis of features, we obtain the results of building extraction by PCA feature fusion and SVM algorithm. The results show that the extraction accuracies based on polarization features and texture feature are 92.4% and 88.9%, respectively. The accuracy is 93.7% when the polarization and texture features are used together. The combination of polarization and texture features improves the accuracy and the PCA feature fusion increases both efficiency and precision.

Key words: polarization decomposition, polarization characteristics, PolSAR, building extraction, PCA feature fusion

CLC Number:

TP79

MA Xiaoxiao, CHENG Bo, LIU Yueming, CUI Shiai, LIANG Chenbin. PolSAR remote sensing image method for building extraction based on polarization and texture characteristics[J]. , 2019, 36(5): 682-693.

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PolSAR remote sensing image method for building extraction based on polarization and texture characteristics

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