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Diagnosing Heterogeneous Dynamics for CT Scan Images of Human Brain in Wavelet and MFDFA Domain

  • Sabyasachi Mukhopadhyay
  • Soham Mandal
  • Nandan K. Das
  • Subhadip Dey
  • Asish Mitra
  • Nirmalya Ghosh
  • Prasanta K. Panigrahi
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 166)

Abstract

CT scan images of human brain of a particular patient in different cross sections are taken, on which wavelet transform and multi-fractal analysis are applied. The vertical and horizontal unfolding of images are done before analyzing these images. Discrete wavelet transform (DWT) through Daubechies basis are done for identifying fluctuations over polynomial trends for clear characterization of CT scan images of human brain in different cross-sections. A systematic investigation of de-noised images are carried out through wavelet normalized energy and wavelet semi-log plots, which clearly points out the mismatch between results of vertical and horizontal unfolding. The mismatch of results confirms the heterogeneity in spatial domain. Using the multi-fractal de-trended fluctuation analysis (MFDFA), the mismatch between the values of Hurst exponent and width of singularity spectrum by vertical and horizontal unfolding confirms the same.

Keywords

Human Brain Discrete Wavelet Transform Hurst Exponent Biomedical Image Singularity Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors thank Bankura Sammilani Medical College and Hospital, Bankura, West Bengal for providing the CT images of human brain in different cross-section.

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Copyright information

© Springer India 2015

Authors and Affiliations

  • Sabyasachi Mukhopadhyay
    • 1
  • Soham Mandal
    • 2
  • Nandan K. Das
    • 1
  • Subhadip Dey
    • 3
  • Asish Mitra
    • 4
  • Nirmalya Ghosh
    • 1
  • Prasanta K. Panigrahi
    • 1
  1. 1.Indian Institute of Science Education and ResearchKolkataIndia
  2. 2.Institute of Engineering and ManagementKolkataIndia
  3. 3.Bidhan Chandra Krishi Viswa VidyalayaKalyaniIndia
  4. 4.College of Engineering and ManagementKolaghatIndia

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