Non-decimated 2D Wavelet Spectrum and Its Use in Breast Cancer Diagnostics

01/23/2022
by   Minkyoung Kang, et al.
0

To improve diagnostic accuracy of breast cancer detection, several researchers have used the wavelet-based tools, which provide additional insight and information for aiding diagnostic decisions. The accuracy of such diagnoses, however, can be improved. This paper introduces a wavelet-based technique, non-decimated wavelet transform (NDWT)-based scaling estimation, that improves scaling parameter estimation over the traditional methods. One distinctive feature of NDWT is that it does not decimate wavelet coefficients at multiscale levels resulting in redundant outputs which are used to lower the variance of scaling estimators. Another interesting feature of the proposed methodology is the freedom of dyadic constraints for inputs, typical for standard wavelet-based approaches. To compare the estimation performance of the NDWT method to a conventional orthogonal wavelet transform-based method, we use simulation to estimate the Hurst exponent in two-dimensional fractional Brownian fields. The results of the simulation show that the proposed method improves the conventional estimators of scaling and yields estimators with smaller mean-squared errors. We apply the NDWT method to classification of mammograms as cancer or control and, for publicly available mammogram images from the database at the University of South Florida, find the the diagnostic accuracy in excess of 80

READ FULL TEXT

page 10

page 17

research
01/23/2022

Robust Wavelet-based Assessment of Scaling with Applications

A number of approaches have dealt with statistical assessment of self-si...
research
03/05/2021

Use of Transfer Learning and Wavelet Transform for Breast Cancer Detection

Breast cancer is one of the most common cause of deaths among women. Mam...
research
02/10/2010

Detection of Microcalcification in Mammograms Using Wavelet Transform and Fuzzy Shell Clustering

Microcalcifications in mammogram have been mainly targeted as a reliable...
research
02/04/2019

Non-decimated Complex Wavelet Spectral Tools with Applications

In this paper we propose spectral tools based on non-decimated complex w...
research
12/22/2019

Pooled scale estimators for scaling prior to cluster analysis

We propose a new approach for scaling prior to cluster analysis based on...
research
03/21/2015

Wavelet based approach for tissue fractal parameter measurement: Pre cancer detection

In this paper, we have carried out the detail studies of pre-cancer by w...
research
01/20/2022

Improving Specificity in Mammography Using Cross-correlation between Wavelet and Fourier Transform

Breast cancer is in the most common malignant tumor in women. It account...

Please sign up or login with your details

Forgot password? Click here to reset