In this paper, we propose an improvement of the logical topology by using self-reconfiguration protocol in MEMS microrobot networks. Recently, solutions have been given for this problem for a chain of microrobots as a starting physical topology; the advantage of these solutions is that they are distributed protocols without map of the target shape which makes them efficient and scalable. This p...

This paper investigates the shape collapse problem in nonrigid image registration. The shape collapse problem is the situation when an appendage of a deforming object does not overlap with the target shape and collapses to a set of zero measure during the registration process. The dual problem occurs when a new appendage grows out of the object to match the target shape. In both cases, the esti...

A novel curve segmentation algorithm for detennining control points for deformable-model-based target tracking is proposed. The algorithm is parameterless enabling a full-fledged automated tracking regard1e:w of the shape of the object being tracked. Compared with other curve segmentation algorithms, it selects a minimal number of control points that yet deliver a superior shape description. Th...

A B S T R A C T Introduction: In an oddball experiment, the context in which novel stimuli are presented affects characteristics of novelty P3, i.e. as long as there is a difficult task in which the difference between standard and target stimuli is small, recurrent presentation of a highly discrepant stimulus can lead to P300 highly similar to novelty P3. Effect of stimulus properties on P300 h...

Shape is an important visual feature and it is one of the primitive features for image content description. However, shape content description is a difficult task. Because it is difficult to define perceptual shape features that measure the similarity between shapes. The problem will be more complex, if shape is corrupted with noise, defection, arbitrary distortion and occlusion. Shape research...

This paper describes a method for controlling the multi-phase smoke animation that uses Lagrangian particles. Previous methods need several density fields to simulate different types of smoke. We use a single field, which is more like a natural phenomenon to obtain the interactive motions of fluid. Also, whereas existing methods which apply control forces to cells only, we define particle force...

Target shape estimation with UWB pulse radars is promising as an imaging technique for household robots. We have already proposed a fast imaging algorithm, SEABED based on a reversible transform BST (Boundary Scattering Transform) between the received signals and the target shape. However the target image obtained by SEABED deteriorates in a noisy environment because it utilizes a derivative of...

The neutrino factory requires a source of pions within a momentum window determined by the ‘muon front end’ accelerator structure downstream [1]. The technique of finding which parts of a large target block are net absorbers or emitters of particles may be adapted with this momentum window in mind. Therefore, analysis of a hadronic production simulation run using MARS15 [2] can provide a candid...

The paper presents an analysis of a nonlinear filtering problem corresponding to tracking of an extended target whose shape is modelled by an ellipse. The measurements of target extent are assumed to be available in addition to the usual positional measurements. Using Cramer-Rao bounds we establish the best achievable error performance for this highly nonlinear problem. The theoretical bounds a...