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Zwiększenie rozdzielczości obrazów termowizyjnych metodą sieci neuronowych głębokiego uczenia

Więcek Piotr, Sankowski Dominik

Pomiary Automatyka Robotyka

2021

R. 25, nr 3

31--35

W pracy przedstawiono nowy algorytm zwiększenia rozdzielczości obrazów termowizyjnych. W tym celu zintegrowano sieć resztkową z modułem współdzielonego filtru z podpróbkowaniem obrazu KSAC (ang. Kernel-Sharing Atrous Convolution). Uzyskano znaczne skrócenie czasu działania algorytmu przy zachowaniu dużej dokładności. Sieć neuronową zrealizowano w środowisku PyTorch. Przedstawiono wyniki działania proponowanej nowej metody zwiększenia rozdzielczości obrazów termowizyjnych o wymiarach 32×24, 160×120 i 640×480 dla skali 2-6.

The article presents a new algorithm for increasing the resolution of thermal images. For this purpose, the residual network was integrated with the Kernel-Sharing Atrous Convolution (KSAC) image sub-sampling module. A significant reduction in the algorithm’s complexity and shortening the execution time while maintaining high accuracy were achieved. The neural network has been implemented in the PyTorch environment. The results of the proposed new method of increasing the resolution of thermal images with sizes 32x24, 160×120 and 640×480 for scales up to 6 are presented.

Object classification with artificial neural networks : A comparative analysis

Domeradzki Kornel, Niewiadomski Artur

Studia Informatica : systems and information technology

2019

Vol. 1-2(23)

43--56

Object classification is a problem which has attracted a lot of research attention in recent years. Traditional approach to this problem is built on a shallow trainable architecture that was meant to detect handcrafted features. That approach works poorly and introduces many complications in situations where one is to work with more than a couple types of objects in an image with a large resolution. That is why in the past few years convolutional and residual neural networks have experienced a tremendous rise in popularity. In this paper, we provide a review on topics related to artificial neural networks and a brief overview of our research. Our review begins with a short introduction to the topic of computer vision. Afterwards we cover briefly the concepts of neural networks, convolutional and residual neural networks and their commonly used models. Then we provide a comparative performance analysis of the previously mentioned models in a binary and multi-label classification problem. Finally, multiple conclusions are drawn, which are to serve as guidelines for future computer vision systems implementations.