Classification of time-series images using deep convolutional neural networks

Nima Hatami; Yann Gavet; Johan Debayle

doi:10.1117/12.2309486

13 April 2018 Classification of time-series images using deep convolutional neural networks

Nima Hatami, Yann Gavet, Johan Debayle

Author Affiliations +

Proceedings Volume 10696, Tenth International Conference on Machine Vision (ICMV 2017); 106960Y (2018) https://doi.org/10.1117/12.2309486
Event: Tenth International Conference on Machine Vision, 2017, Vienna, Austria

Abstract

Convolutional Neural Networks (CNN) has achieved a great success in image recognition task by automatically learning a hierarchical feature representation from raw data. While the majority of Time-Series Classification (TSC) literature is focused on 1D signals, this paper uses Recurrence Plots (RP) to transform time-series into 2D texture images and then take advantage of the deep CNN classifier. Image representation of time-series introduces different feature types that are not available for 1D signals, and therefore TSC can be treated as texture image recognition task. CNN model also allows learning different levels of representations together with a classifier, jointly and automatically. Therefore, using RP and CNN in a unified framework is expected to boost the recognition rate of TSC. Experimental results on the UCR time-series classification archive demonstrate competitive accuracy of the proposed approach, compared not only to the existing deep architectures, but also to the state-of-the art TSC algorithms.

Citation Download Citation

Nima Hatami, Nima Hatami, Yann Gavet, Yann Gavet, Johan Debayle, Johan Debayle, "Classification of time-series images using deep convolutional neural networks", Proc. SPIE 10696, Tenth International Conference on Machine Vision (ICMV 2017), 106960Y (13 April 2018); doi: 10.1117/12.2309486; https://doi.org/10.1117/12.2309486

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