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This paper presents a parameter obtained from the difference in the correlation of simultaneously electrogastrogram signals (EGG) recorded along abdominal wall, as a possible guideline for the determination of abnormal phase shift associated with stomach pathologies. A database of 105 simulated EGG signals using a bipolar recording, with pacemaker frequency selected randomly in three possible cases...
In this paper, we will present a new algorithm which is extended from the standard Gaussian mixture model to segment the noisy image based on the correlation among neighboring pixels. Firstly, we use the correlation between each centre pixel and its neighboring pixels in 3 times 3 window in building the prior probability, and this centre pixel is used to construct the conditional density function...
The coherent detection of targets in presence of clutter and noise is considered in this study. Several clutter models are proposed in the literature, although the commonly used for sea and land clutter returns is the Weibull one. Our case of study involves that the target is known a priori, the clutter is Weibull-distributed and a white Gaussian noise is present. In this case, obtaining analytical...
Influenced by detector materials' non-uniformity, growth and etching techniques' etc, every detector's responsivity of infrared focal plane arrays (IRFPA) is different, which results in non-uniformity of IRFPA. And non-uniformity of IRFPA generates fixed pattern noises (FPN) that are superposed on infrared images. So the quality of infrared images is poor, which greatly limited the application of...
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