Turkish Journal of Electrical Engineering and Computer Sciences
Filter design for small target detection on infrared imagery using normalized-cross-correlation layer
n this paper, we introduce a machine learning approach to the problem of infrared small target detection filter design. For this purpose, similar to a convolutional layer of a neural network, the normalized-cross-correlational (NCC) layer, which we utilize for designing a target detection/recognition filter bank, is proposed. By employing the NCC layer in a neural network structure, we introduce a framework, in which supervised training is used to calculate the optimal filter shape and the optimum number of filters required for a specific target detection/recognition task on infrared images. We also propose the mean-absolute-deviation NCC (MAD-NCC) layer, an efficient implementation of the proposed NCC layer, designed especially for FPGA systems, in which square root operations are avoided for real-time computation. As a case study we work on dim-target detection on midwave infrared imagery and obtain the filters that can discriminate a dim target from various types of background clutter, specific to our operational concept.
Small target detection, filter design, normalized-cross-correlation, convolutional neural networks
DEMİR, HÜSEYİN SEÇKİN and AKAGÜNDÜZ, ERDEM
"Filter design for small target detection on infrared imagery using normalized-cross-correlation layer,"
Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 28:
1, Article 22.
Available at: https://journals.tubitak.gov.tr/elektrik/vol28/iss1/22
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