Wireless Capsule Endoscopy Images Enhancement by Tensor Based Diffusion

Author

Li, Baopu ; Meng, Max Q H

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

4861

Lastpage

4864

Abstract

To enhance the contrast and the details of the wireless capsule endoscopy images, which are used to diagnose the status of the human gastrointestinal tracts, we propose a tensor based diffusion method in this paper. After analyzing the structure tensor of the image in RGB color space, we focus on the properties of the nonlinear anisotropic diffusion. Then we design two diffusion strength functions to determine the anisotropic diffusion according to the local characteristics of the wireless capsule endoscopy images. Experimental results on real wireless capsule endoscopy images indicate effective enhancement of details and contrast by our new approach

Keywords

biological organs; biomedical optical imaging; endoscopes; image enhancement; medical image processing; tensors; RGB color space; diffusion strength function; human gastrointestinal tract; image contrast; image enhancement; nonlinear anisotropic diffusion; structure tensor; tensor based diffusion; wireless capsule endoscopy image; Anisotropic magnetoresistance; Diseases; Eigenvalues and eigenfunctions; Endoscopes; Gastrointestinal tract; Image analysis; Image color analysis; Image enhancement; Intestines; Tensile stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260002

Filename

4462890