Multifractal Analysis of Thermal Images of Electronic Devices in Different Colour Profiles

  1. Díaz-Jiménez, Marina 1
  2. de la Torre, Juan Carlos 1
  3. Jareño-Dorado, Javier 1
  4. Ruiz, Patricia 4
  5. Dorronsoro, Bernabé 2
  6. Pavón-Domínguez, Pablo 3
  1. 1 Dept. Computer Science Eng. University of Cadiz, Spain
  2. 2 Dept. Computer Science Eng. University of Cadiz, Spain University of Sydney, Australia
  3. 3 Dept. Mechanical Eng. and Ind. Design University of Cadiz, Spain
  4. 4 Dept. Mechanical Eng. and Ind. Design University of Cadiz, Spain University of Sydney, Australia
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Actas:
ADVCOMP 2023 : The Seventeenth International Conference on Advanced Engineering Computing and Applications in Sciences

ISBN: 978-1-68558-107-7

Año de publicación: 2023

Páginas: 7-13

Tipo: Aportación congreso

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Resumen

Nowadays, there are many methods for analysingimages. Among them, a multifractal approach is able to characterise images in terms of the complexity of patterns theycontain. However, multifractal methods are very sensitive to smallchanges in colour images. This study presents a preliminarystudy for the accurate characterisation of electronic devices interms of heat dissipation using multifractal analysis. Specifically,a novel methodology using multifractal approach is proposed tocharacterise images in different colour formats: Grey-Scale, RedGreen-Blue (RGB), Cyan-Magenta-Yellow-Key (CMYK), HueSaturation-Value (HSV) and Hue-Saturation-Intensity (HSI), andthe results are compared. For this purpose, thermal images ofa Pi3 Raspbian Desktop board are analysed with the aim offinding out the results of the multifractal analysis on differentareas of the board. Multifractal analysis is carried out throughthe box-counting method and the method of moments, sincethey allow to extract the main multifractal parameters, suchas, the generalised dimensions function, D(q) and the degreeof multifractality, ∆D(q). The results obtained show that bothscaling properties and multifractal parameters vary accordingto the colour format, i.e., the same image exhibits differentmultifractal properties depending on the colour format.