Enhancing lung nodules in chest X-rays by using visual perception and directional scale LoG filter
Zhou Pei-dong · Computer Engineering and Applications Journal · 2010
Aiming at problem which is not beneficial for a physician to diagnose lung nodules in a chest X-ray image,such as lower image contrast,poorer visual effect,a Laplacian of Gaussian Filter technique based on visual perception and directional scale for enhancing lung nodules in chest X-rays is proposed.The implementation of the proposed method is based on the modification of classical Laplacian of Gaussian(LoG) filter operation by assigning different scale values in different directions and consider visual factor to complete vision correction.Experiments show that the technique proposed in this paper can effectively enhance the lung nodules in the chest radiograph,and with respective to the methods of the literature,the proposed method have better enhanced effect.