One of the challenges faced by blind to achieve optimum mobility is obstacles detection and avoidance. The traditional aid white cane, but nowadays, there are also electronic travel aids. However, none them widely used. eBAT (electronic Buzzer for Autonomous Travel) has been designed provide protection easy usage, interacting with a user’s mobile phone. To improve its performance, usage test wa...

This study is concerned with the expression and recognition of basic emotions in blind and sighted people. We collected audiovisual recordings from blind and sighted people who were asked to produce specific utterances in such a way that they would fit different emotional contexts (i.e., angry, happy, sad, scared). In a perception experiment, 75 sighted participants had to guess which emotion f...

introduction: in 1995, the world health organization (who) estimated that there were 37.1 million blind people worldwide. it has subsequently been reported that 110 million people have severely impaired vision, hence are at great risk of becoming blind. watkins predicted an annual increase of about two million blind worldwide. this study was designed to investigate the causes of blindness and l...

Most of studies on the video communications are based on an unproved hypothesis: They take it granted that the full-face images of communicators are the 'sine qua non' in video conversations, and profiles are rather confusing or annoying for them. This paper proves the counter hypothesis that profile images are also useful and they can replace the full-faces under some conditions. Psychological...