Title :
Texture analysis using Nakagami-MRF model: Preliminary results on ultrasound images of primary choroidal melanomas
Author :
Bouhlel, Nizar ; Hajjaji, Salwa ; Sevestre, Sylvie ; Laugier, Pascal
Author_Institution :
Lab. U2S, Nat. Eng. Sch. of Tunis, Tunis, Tunisia
Abstract :
In this paper the Nakagami-MRF model is proposed to model the backscattered echo from tissue and at the same time the spatial interaction found in the image. This paper investigates the efficiency of the model parameters to discriminate between normal and abnormal tissue by comparing the Nakagami-MRF parameters inside and surrounding the tumor. The study of the behavior of these latter parameters at different stages of the treatment are also undertaken to inform whether the tumor is cured or not. We conclude that our Markovian model is farther more informative than the use of the Nakagami distribution.
Keywords :
Markov processes; biomedical ultrasonics; image texture; medical image processing; patient treatment; tumours; Markovian model; Nakagami distribution; Nakagami-MRF model; Nakagami-MRF parameters; abnormal tissue; backscattered echo; model parameters; primary choroidal melanomas; spatial interaction; texture analysis; tumor; ultrasound images; Cancer; Image analysis; Image texture analysis; Malignant tumors; Nakagami distribution; Neoplasms; Pixel; Probability density function; Radio frequency; Ultrasonic imaging; Choroidal melanoma; Nakagami-MRF; Texture Characterization; Ultrasound Imaging;
Conference_Titel :
Image Processing (ICIP), 2009 16th IEEE International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-5653-6
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2009.5414531