Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Convolutional Neural Networks with Deep Supervised Feature Learning for Remote Sensing Scene Classification

Version 1 : Received: 4 August 2020 / Approved: 5 August 2020 / Online: 5 August 2020 (06:19:27 CEST)

How to cite: Tsagkatakis, G.; Tsakalides, P. Convolutional Neural Networks with Deep Supervised Feature Learning for Remote Sensing Scene Classification. Preprints 2020, 2020080113 (doi: 10.20944/preprints202008.0113.v1). Tsagkatakis, G.; Tsakalides, P. Convolutional Neural Networks with Deep Supervised Feature Learning for Remote Sensing Scene Classification. Preprints 2020, 2020080113 (doi: 10.20944/preprints202008.0113.v1).

Abstract

State-of-the-art remote sensing scene classification methods employ different Convolutional Neural Network architectures for achieving very high classification performance. A trait shared by the majority of these methods is that the class associated with each example is ascertained by examining the activations of the last fully connected layer, and the networks are trained to minimize the cross-entropy between predictions extracted from this layer and ground-truth annotations. In this work, we extend this paradigm by introducing an additional output branch which maps the inputs to low dimensional representations, effectively extracting additional feature representations of the inputs. The proposed model imposes additional distance constrains on these representations with respect to identified class representatives, in addition to the traditional categorical cross-entropy between predictions and ground-truth. By extending the typical cross-entropy loss function with a distance learning function, our proposed approach achieves significant gains across a wide set of benchmark datasets in terms of classification, while providing additional evidence related to class membership and classification confidence.

Subject Areas

Scene classification; Deep Learning; Convolutional Neural Networks; Feature learning

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