A NOVEL ENHANCEMENT METHOD FOR CAPSULE ENDOSCOPY IMAGES
Baopu Li, Max Q.‐H. Meng · International Journal of Information Acquisition · 2007
To assist the diagnosis, this paper presents a new algorithm to enhance the capsule endoscopy images, which are now widely used to detect the diseases in the digestive tract because of its great advantages over traditional endoscopy technologies. The capsule endoscopy images have the characteristics such as low resolution and low contrast, which cause some difficulties to analysis and diagnosis for the physicians, especially to computer aided diagnosis. To overcome these shortcomings, we propose a contrast-based forward and backward anisotropic diffusion method to enhance the capsule endoscopy images. Based on the local analysis of the capsule endoscopy images, we put forward a new concept of contrast. Then, we employ the forward and backward anisotropic diffusion to enhance the capsule endoscopy images. Experimental results show that this new method can efficiently enhance the capsule endoscopy images, which provides a better visualization and an improved discrimination of region of interest from the background.