In this paper we present an innovative haptic device that combines the electro-tactile stimulation with the force and visual feedbacks in order to improve the perception of a virtual world. We discuss the sensation evoked in a user by the haptic, force, and the visual interface as provided by this device, implemented as a special glove, equipped with sensors and actuators connected to a PC. The...

The fusion of data from different sensorial sources is the most promising method to increase robustness and reliability of environmental perception today. The paper presents an approach for using fuzzy operators for the hierarchical fusion of processing results in a multi sensor data processing system for the detection of vehicles in road environments. Tracking and fusion of intermediate result...

Haptic devices enable blind people to interact with virtual models of objects that for location, dimension or sensitivity to damages cannot be offered to direct tactile exploration. They can increase the flexibility of this interaction and the integration and understanding of the tactile sensorial information. A realistic perception requires an effective interaction between the models of the ha...

In this paper, we present experimental results got with the omnidirectional sensor SYCLOP “Conical SYstem for LOcalization and Perception” for localisation of mobile robots. This system, which is able to get a panoramic view of a 2π radian field, is made of a CCD camera and a vertically oriented conic shaped reflector. We give at first a method to calibrate the whole omnidirectional taking in a...

We extend a well-studied ODE model for collective behaviour by considering anisotropic interactions among individuals. Anisotropy is modeled by limited sensorial perception of individuals, that depends on their current direction of motion. Consequently, the firstorder model becomes implicit, and new analytical issues, such as non-uniqueness and jump discontinuities in velocities, are being rais...

In this article, a dynamic localization method based on multi target tracking is presented. The originality of this method is its capability to manage and propagate uncertainties during the localization process. This multi-level uncertainty propagation stage is based on the use of the Dempster-Shafer theory. The perception system we use is composed of an omnidirectional vision system and a pano...

The visual perception system of humanoid robots should provide sensorial information that fulfills the requirements imposed by perceptual tasks in natural environments. One prerequisite for such systems is the ability to observe the environment by actively moving its visual sensors. This ability allows to implement two essential behaviors for a cognitive visual system: smooth pursuit and saccad...

This paper discusses the importance to teach students on children’s architecture base on the perception of the children, not on the presumption of adults. It focuses on the approach teaching design and planning of built environment for young children, early to middle childhood. A trans-disciplinary approach is introduced integrating the knowledge of childhood development, architecture and lands...

This study compares sensory recovery after total lower lip reconstruction in a wide variety of flaps including bilateral depressor anguli oris flap, submental island flap, bilateral fan flaps, radial forearm flap, and pectoralis major myocutaneous flaps in a large number of patients. Spontaneous return of flap sensation was documented by clinical testing in the majority (3%) of patients who und...