M2F2-RCNN: Multi-functional faster RCNN based on multi-scale feature fusion for region search in remote sensing images

Author:

Yin Shoulin1,Wang Liguo2,Wang Qunming3,Ivanovic Mirjana4ORCID,Yang Jinghui5

Affiliation:

1. College of Information and Communication Engineering, Harbin Engineering University Harbin, China

2. College of Information and Communications Engineering, Dalian Minzu University Dalian, China

3. College of Surveying and Geo-Informatics, Tongji University Shanghai, China

4. Faculty of Sciences, University of Novi Sad Novi Sad, Serbia

5. School of Information Engineering, China University of Geosciences Beijing, China

Abstract

In order to realize fast and accurate search of sensitive regions in remote sensing images, we propose a multi-functional faster RCNN based on multi-scale feature fusion model for region search. The feature extraction network is based on ResNet50 and the dilated residual blocks are utilized for multi-layer and multi-scale feature fusion. We add a path aggregation network with a convolution block attention module (CBAM) attention mechanism in the backbone network to improve the efficiency of feature extraction. Then, the extracted feature map is processed, and RoIAlign is used to improve the pooling operation of regions of interest and it can improve the calculation speed. In the classification stage, an improved nonmaximum suppression is used to improve the classification accuracy of the sensitive region. Finally, we conduct cross validation experiments on Google Earth dataset and the DOTA dataset. Meanwhile, the comparison experiments with the state -of the- art methods also prove the high efficiency of the proposed method in region search ability.

Publisher

National Library of Serbia

Subject

General Computer Science

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