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The automated detection of cerebral vessels is of great importance in understanding of the diagnosis, treatment and mechanism of many brain vascular pathologies. However, automatic vessel detection from 3D angiography continues to be an open issue. In this paper we introduce a novel 3D symmetry filter that has excellent performance on enhancing vessels in magnetic resonance angiography (MRA). The...
In this paper an efficient approach “Hybrid Assessment and Enhancement technique for Foreign Object Detection (HAE-FOD)” is proposed to detect debris in the runway. Foreign objects such as engine fasteners or aircraft parts are left in the runway when an aircraft takes off. These objects may cause damage to life and property when they are not detected. In practice, they are identified manually which...
In this paper, a novel explicit image filter, called Guided Gabor filter, is proposed to extract the finger vein pattern without any segmentation processing, and lower performance reduction for poor quality images which result from low contrast, illumination, or noise effects, etc. The proposed filter is contributed for finger vein enhancement, noise reduction, and haze removal without being affected...
The main goal of this paper is to show the prominent applications of the wavelet and multiresolution transform for cancer diagnosis system. Early detection and diagnosis of breast cancer helps the survival rate of the patient. Wavelet transform and the multiresolution analysis of the image processing techniques contribute to the vital role in the medical applications. Some of the image processing...
A method aimed at minimizing image noise while optimizing contrast of image subtle features based on nonsubsampled contourlet transform is presented in this paper. Nonsubsampled contourlet transform, which is a shift-invariant version of the contourlet transform, has better performance in representing image edges than separable wavelet for its anisotropy, directionality and shift-invariance, and is...
We introduce a method for de-noising, segmenting and measuring similarity of shapes. The proposed method consists of two techniques. First we use an inverse diffusion filter for enhancement of relevant polygonal vertices and removal of noise and irrelevant edges. Second we apply a technique that removes the vertices that form the triangles with the smallest areas. In a thorough experimental evaluation,...
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