Edge Detection using Stationary Wavelet Transform, HMM, and EM algorithm
Image and Video Processing
2020-04-24 v1 Computer Vision and Pattern Recognition
Abstract
Stationary Wavelet Transform (SWT) is an efficient tool for edge analysis. This paper a new edge detection technique using SWT based Hidden Markov Model (WHMM) along with the expectation-maximization (EM) algorithm is proposed. The SWT coefficients contain a hidden state and they indicate the SWT coefficient fits into an edge model or not. Laplacian and Gaussian model is used to check the information of the state is an edge or no edge. This model is trained by an EM algorithm and the Viterbi algorithm is employed to recover the state. This algorithm can be applied to noisy images efficiently.
Keywords
Cite
@article{arxiv.2004.11296,
title = {Edge Detection using Stationary Wavelet Transform, HMM, and EM algorithm},
author = {S. Anand and K. Nagajothi and K. Nithya},
journal= {arXiv preprint arXiv:2004.11296},
year = {2020}
}
Comments
07 pages, 5 figures