eCite Digital Repository

Edge localisation in MRI for images with signal-dependent noise


Aarya, I and Jiang, D and Gale, T, Edge localisation in MRI for images with signal-dependent noise, Electronics Letters, 51, (15) pp. 1151-1153. ISSN 0013-5194 (2015) [Refereed Article]

Copyright Statement

The Institution of Engineering and Technology 2015

DOI: doi:10.1049/el.2015.0774


A new edge localisation technique for step edges in images with signal dependent Rician noise in MRI is proposed. Dependent noise can not only affect the detection of true edges in an image but also their position. Inaccurate localisation of an edge can lead to insufficient segmentation and reduce the overall accuracy of any edge detection method. The proposed technique uses higher-order moments of the noise function to determine the correction factor for localisation and thus reduce the overall mean square error for true edge localisation due to noise. The proposed technique offers significant improvement in edge localisation for an image as compared with Canny and Sobel methods.

Item Details

Item Type:Refereed Article
Keywords:edge detection, MRI, signal-dependant noise
Research Division:Information and Computing Sciences
Research Group:Computer vision and multimedia computation
Research Field:Image processing
Objective Division:Health
Objective Group:Clinical health
Objective Field:Diagnosis of human diseases and conditions
UTAS Author:Aarya, I (Miss Isshaa Aarya)
UTAS Author:Jiang, D (Dr Danchi Jiang)
UTAS Author:Gale, T (Dr Timothy Gale)
ID Code:102056
Year Published:2015
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2015-07-24
Last Modified:2018-03-16

Repository Staff Only: item control page