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1 Journal of Artificial Intelligence and Soft Computing Research

1 2021

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A new approach to detection of changes in multidimensional patterns. Part 2

Gałkowski Tomasz, Krzyżak Adam, Patora-Wysocka Zofia, Filutowicz Zbigniew, Wang Lipo

Journal of Artificial Intelligence and Soft Computing Research

2021

Vol. 11, No. 3

217--227

In the paper we develop an algorithm based on the Parzen kernel estimate for detection of sudden changes in 3-dimensional shapes which happen along the edge curves. Such problems commonly arise in various areas of computer vision, e.g., in edge detection, bioinformatics and processing of satellite imagery. In many engineering problems abrupt change detection may help in fault protection e.g. the jump detection in functions describing the static and dynamic properties of the objects in mechanical systems. We developed an algorithm for detecting abrupt changes which is nonparametric in nature and utilizes Parzen regression estimates of multivariate functions and their derivatives. In tests we apply this method, particularly but not exclusively, to the functions of two variables.