The Curious George project aims to construct a spatial-semantic modeling system featuring automated learning of object appearance and object-place relations from online annotated database, and the application of these relations to a variety of real-world tasks. The physical system currently developed at UBC, a visually guided mobile robot, can recognize objects in an environment based on imagery collected from the World Wide web, as demonstrated in an international contest known as the Semantic Robot Vision Challenge.
Wireless relaying has been recently proposed as a promising method in wireless communications that offers considerable performance improvement without the need of high transmission powers. Its operation is based upon the concept of deploying relay terminals in order to forward the information sent by a source terminal to a destination terminal. In this way, the system is able to overcome potential obstacles between source and destination and can take advantage of the available multiple paths and thus exploit the beneficial effects of spatial diversity.
Evolution of communication technology is pushing the limits beyond those of conventional radio frequency and millimeter-wave devices. A key trend in this evolution is miniaturization and ultrahigh density integration of radio/microwave frequency devices. Micro-electromechanical systems (MEMS) technology provides the opportunity to develop micro-scale RF devices and satisfy the market demand.
Fixed-rate coding for cooperative wireless networks with decode-and-forward (DF) relay processing has received much attention. Yet, only a fairly narrow body of research exists on rateless coded DF relaying networks. Little is known about how the performances and complexity implications of fixed-rate and rateless coded systems compare. Meanwhile, such comparisons play a vital role in the system design for cooperative networks.
The stochastic resonance (SR) is a phenomenon discovered recently in some nonlinear systems where addition of a certain amount of noise can, somewhat paradoxically, enhance its performance. It has found applications in biological sensory systems  such as visual, auditory systems, and tactile system as well as engineering applications such as ac-driven Schmitt triggers, and bistable ring lasers. The bistable systems (BS) are nonlinear systems  that are widely used as SR systems.
This project involves several researchers in the Multimedia Communications Lab at SFU, and is aimed at developing a prototype system for binocular stereoscopic eye tracking. The system will consist of eyeglasses worn by the subject, two infrared eye cameras (one for each eye) and a stereo imaging device. In addition to conventional gaze direction estimation, this would require estimating the gaze depth as well. Some of the challenges related to the development of such a
We are conducting an exciting project on building tools for managing personal social networks. You have a lot of friends, communicating with you in a few online social networks, such as Facebook, LinkedIn, and Twitter, as well as some traditional channels, such as emails, phone calls, and online messages. How to manage your contacts in a social network way?