The ever-increasing speed of current general purpose processors, together with architectural enhancements such as multimedia-oriented instruction set extensions, allow for deploying standard PC-based systems in a number of computationally intensive computer vision tasks. This paper describes the PC-based real-time stereo vision system developed within the VIDET project, which is a research proj...

PURPOSE Respiratory gating is a commercially available technology for reducing the deleterious effects of motion during imaging and treatment. The efficacy of gating is dependent on the reproducibility within and between respiratory cycles during imaging and treatment. The aim of this study was to determine whether audio-visual biofeedback can improve respiratory reproducibility by decreasing r...

CAPTCHAs are computer generated tests that humans can pass but current computer systems cannot. CAPTCHAs provide a method for automatically distinguishing a human from a computer program, and therefore can protect web services from bots. Most CAPTCHAs consist of distorted images, usually text, for which a user must provide some description. Unfortunately, visual CAPTCHAs limit access to the mil...

Perceiving a scene most fully requires all the senses. Yet modeling how objects look and sound is challenging: most natural scenes and events contain multiple objects, and the audio track mixes all the sound sources together. We propose to learn audio-visual object models from unlabeled video, then exploit the visual context to perform audio source separation in novel videos. Our approach relie...

It is well known that visually impaired children have limited opportunities in learning new things compared to normal sighted children as visually impaired children do not have one of the important senses of human being. Computer simulated virtual reality environment can provide better opportunities for visually impaired children especially in learning the shapes of new objects. An application ...