The application of smoothing in the integrated navigation system of 4S-Van is considered. 4S-Van is a mobile mapping system, which provides the position information of various objects on the road. For navigation purpose, it has various sensors such as an inertial measurement unit, a GPS receiver and an odometer. It is also equipped with CCD cameras, laser scanners and video cameras, for mapping...

The aim of this study is to improve the image quality using a post process rather than a correction process at acquisition time. We used a smoothing filter that is widely used on a compact digital camera. Especially for nuclear medicine, when we use a short acquisition time, we will get images that have a large increase in statistical noise. For those images, we validated the efficiency of the ...

We present a novel shadow smoothing algorithm using the bilateral filter. From the observation that shadow leaking, which is found often in filter based approaches, occurs at depth discontinuity seen from the viewpoint of the eye, we apply the bilateral filter which is conceptually a product of two Gaussian filters, one for smoothing the shadow map and the other for handling depth discontinuity...

In this paper, we present a new class of rank-order-based filters, lower-upper-middle (LUM) filters. The output of these filters is determined by comparing a lowerand upper-order statistic to the middle sample in the filter window. These filters can be designed for smoothing, sharpening, and outlier rejection. This wide range of characteristics can be obtained from a single filter structure by ...

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Myocardial perfusion SPECT imaging with Tc99m-sestamibi is the most accurate non-invasive means of detecting coronary artery disease and assessing the severity of perfusion abnormalities in the patients with coronary stenosis. Though simple and straight forward the results produced by the technique is very much affected by the details being used. One of the main problems with the test, wh...

myocardial perfusion spect imaging with tc99m-sestamibi is the most accurate non-invasive means of detecting coronary artery disease and assessing the severity of perfusion abnormalities in the patients with coronary stenosis. though simple and straight forward the results produced by the technique is very much affected by the details being used. one of the main problems with the test, which ha...

We present a simplified structure of 3-D adaptive LUM smoother for the impulse noise suppression in image sequences. The proposed reduced filter structure is optimized for possible hardware implementation. Introduced simplifications significantly decrease a filter complexity, however the adaptive LUM smoother based on the proposed reduced set of smoothing levels still provides excellent smoothi...

The first. fixed lag smoothing algorithm mas developed by Rauch [I] as an extension to the fixed interval smoothing algorithm 121. Meditch [3] rederived t.he result,s of [I] using orthogonal project,ion. He conjectured that the h e d lag smoot.her [l], [3] would be asymptotically stable under the usual condit.ions which guarantee asymptotic stability of the Kalman filter. However, Kailath and F...