background: a method to track liver tumor motion signals from fluoroscopic images without any implanted gold fiducial markers was proposed in this study to overcome the adverse effects on precise tumor irradiation caused by respiratory movement. materials and methods: the method was based on the following idea: (i) before treatment, a series of fluoroscopic images corresponding to different bre...

In this paper, a novel decision based median (DBM) filter for enhancing MR images has been proposed. The method is based on eliminating impulse noise from MR images. A median-based method to remove impulse noise from digital MR images has been developed. Each pixel is leveled from black to white like gray-level. The method is adjusted in order to decide whether the median operation can be appli...

introduction: the accuracy of analyzing functional mri (fmri) data is usually decreases in the presence of noise and artifact sources. a common solution in for analyzing fmri data having high noise is to use suitable preprocessing methods with the aim of data denoising. some effects of preprocessing methods on the parametric methods such as general linear model (glm) have previously been evalua...

Our submission to the challenge therefore focusses on feature design for two goals: noise robustness, and the representation of temporal structure. We first analyse each sound file into basic features, either MFCCs (13 MFCCs plus delta features) or our peak-chirplet representation [3]. Importantly, both of these feature algorithms are modified to apply noise reduction in their spectral analysis...

Blotchy noise is one of the most common and visually annoying noises noticed in digitized black-and-white motion picture films. This work investigates presents a three-stage blotchy noise reduction scheme combining efforts of temporal median filtering and motioncompensated filtering after joint motion/noise detection. Implementation of each module of the scheme is discussed and finally performa...

in this paper, a novel decision based median (dbm) filter for enhancing mr images has been proposed. the method is based on eliminating impulse noise from mr images. a median-based method to remove impulse noise from digital mr images has been developed. each pixel is leveled from black to white like gray-level. the method is adjusted in order to decide whether the median operation can be appli...