Title
Rotation-Invariant Object Detection in Remote Sensing Images Based on Radial-Gradient Angle
Abstract
To improve the detection precision in complicated backgrounds, a novel rotation-invariant object detection method to detect objects in remote sensing images is proposed in this letter. First, a rotation-invariant feature called radial-gradient angle (RGA) is defined and used to find potential object pixels from the detected image blocks by combining with radial distance. Then, a principal direction voting process is proposed to gather the evidence of objects from potential object pixels. Since the RGA combined with the radial distance is discriminative and the voting process gathers the evidence of objects independently, the interference of the backgrounds is effectively reduced. Experimental results demonstrate that the proposed method outperforms other existing well-known methods (such as the shape context-based method and rotation-invariant part-based model) and achieves higher detection precision for objects with different directions and shapes in complicated background. Moreover, the antinoise performance and parameter influence are also discussed.
Year
DOI
Venue
2015
10.1109/LGRS.2014.2360887
IEEE Geosci. Remote Sensing Lett.
Keywords
Field
DocType
radial-gradient angle (rga),remote sensing,object detection,rga,principal direction voting,rotation invariant,feature extraction,principal direction voting process,rotation invariant object detection method,geophysical image processing,radial gradient angle,radial distance,interference suppression,remote sensing images,rotation invariant feature detection,interference reduction,antinoise performance,image block detection,shape,histograms
Histogram,Remote sensing,Artificial intelligence,Interference (wave propagation),Discriminative model,Shape context,Object detection,Computer vision,Pattern recognition,Feature extraction,Invariant (mathematics),Pixel,Mathematics
Journal
Volume
Issue
ISSN
12
4
1545-598X
Citations 
PageRank 
References 
7
0.46
12
Authors
4
Name
Order
Citations
PageRank
Yudong Lin1121.21
Hongjie He223820.34
Zhongke Yin3402.98
Fan Chen413711.05