In this work, we develop and test a matchline dosimetry analysis tool (MDAT) to examine the dose distribution within the abutment region of two or more adjoining radiotherapy fields that employ different blocking mechanisms and geometries in forming a match. This objective and quantitative tool uses calibrated radiographic film to measure the dose in the abutment region, and uses a frequency di...

In traditional vision-based Augmented Reality tracking systems, artificially-designed fiducials (or landmarks) have been used as camera tracking primitives. The 3D positions of these fiducials should be pre-calibrated, which imposes limitations in ranges of tracking view. Fortunately, the advance of computer vision technologies combined with new point position estimation technology enable natur...

This article studies the subspace identification methods (SIMs) for Hammerstein systems with major focus on a rank constraint and the related dimension problem. We analyse the effects of the rank constraint on the three steps of a unifying framework for SIMs: the rank constraint has no effect on the first two steps, but does so on the third step. If the rank constraint is ignored, as in the exi...

The emission rate of photons from a hot, weakly coupled ultrarelativistic plasma is analyzed. Leading-log results, reflecting the sensitivity of the emission rate to scattering events with momentum transfers from gT to T , have previously been obtained. But a complete leading-order treatment requires including collinearly enhanced, inelastic processes such as bremsstrahlung. These inelastic pro...

This contribution aims to identify and clarify emotional aspects of conducting observation studies. The researcher, in most cases, does not want to interfere with or influence the phenomenon under observation, but uses her/himself as a tool to collect material. Even if the observer does not participate verbally, s/he can be emotionally participative using her/his emotions as a methodological to...

We show how a system for video-rate parallel camera tracking and 3D map-building can be readily extended to allow one or more cameras to work in several maps, separately or simultaneously. The ability to handle several thousand features per map at video-rate, and for the cameras to switch automatically between maps, allows spatially localized AR workcells to be constructed and used with very li...

In multi-camera tracking systems, camera placement can have a significant impact on the overall performance. In feature-based motion capture systems, degradation can come from two major sources, low image resolution and target occlusion. In order to achieve better tracking and automate the camera placement process, a quantitative metric to evaluate the quality of multi-camera configurations is ...

Following are the literature review presented here for the development of Hindi to Marathi Machine Translation system. ANUBAAD translates news headlines from English to Bengali, which uses example based Machine Translation system. The input headline is initially searched in the direct example base for an exact match. If a match is obtained, the Bengali headline from the example base is produced...

FReBIR is a region-based image retrieval system, in which images are represented as adjacency graphs of fuzzy regions. An algorithm of fuzzy segmentation is first described. An algorithm to match subgraphs of fuzzy regions is then applied in order to retrieve images from partial queries, taking into account the image composition. Results are improved thanks to a relevance feedback which perform...