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Multi-Class Objects Detection Method in Remote Sensing Image Based on Direct Feedback Control for Convolutional Neural Network
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DOI：10.1109/ACCESS.2019.2943346.png)
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Abstract
En 中文
Object detection in high-resolution remote sensing images has been attracted increasing attention in recent years owing to the successful applications of civil and military. However, there are many critical challenges deciding the performance of object detection in large-scale complex remote sensing image. One of these challenges is how extract and enhance the discriminative features without the top-down feedback mechanism for the existing convolutional neural network (CNN). To cope with this problem, a novel object detection algorithm based on direct feedback control for CNN (DFCCNN) is proposed in this paper. The DFCCNN combines a region proposal network with an object detection network to generate the proposals and to detect the object separately. Initially, a candidate region proposal network (CRPN) is implemented to extract candidate regions within the remote sensing image. Then multi-class objects detection feedback network (MODFN) propose a new top-down feedback mechanism based on the traditional feedforward network to detect the objects. A direct feedback loop (DFL) and a feedback control layer (FCL) are contained in the feedback network. The DFL propagates the posterior information directly from the top layer without depending on the rest of the network and the FCL make full use of top-down information to inhibit object-irrelevant neurons and emphasize object-relevant neurons. Through the addition of direct feedback control mechanism, these object-relevant neurons can be emphasized by taking feedback information of top layer into feature extraction, whereas these object-irrelevant neurons can be inhibited effectively by pruning the neural pathway. The proposed DFCCNN model is able to extract more discriminative low-level features under the guidance of the high-level information. Some experiments on NWPU VHR-10 data set and aircraft data set are induced, and the experimental results show that the proposed method can achieve a higher accuracy of object detection in remote sensing image with various complex background clutter.
Keywords:
Object detection
convolutional neural network
direct feedback loop
feedback control layer
remote sensing image
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