Change Detection Based on Feature Optimization in High Resolution Optical Image

Object-oriented change detection (CD) method can make full use of feature information of high resolution optical images. However, the feature information is redundancy in Object-oriented CD of high resolution optical image due to the fact that the image has multiple bands. Therefore, feature optimiz...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1518; no. 1; pp. 12067 - 12074
Main Authors Pang, Haiyan, Yang, Xuezhi, Wang, Jun, Dong, Zhangyu
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2020
Subjects
Algorithms
Change detection
Feature extraction
High resolution
Image resolution
Image segmentation
Object recognition
Optimization
Physics
Redundancy
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Summary:Object-oriented change detection (CD) method can make full use of feature information of high resolution optical images. However, the feature information is redundancy in Object-oriented CD of high resolution optical image due to the fact that the image has multiple bands. Therefore, feature optimization is necessary to object-oriented CD. Aiming at the problem, a novel CD method based on feature optimization which combines improved locally linear embedding (ILLE) algorithm and object-oriented technology is proposed. Firstly, two temporal images are inverted into objects using multi-scale segmentation algorithm. Secondly, the spectral and texture features of the objects are extracted to construct the novel feature change vector. Thirdly, the improved LLE algorithm, which introduces the Geodesic distance metric, is designed to optimize the feature change vector. Finally, the CD result is obtained by FCM algorithm. Experiments construct on the real GF-1 images, and the results confirm the effectiveness of the proposed method.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1518/1/012067