The ability to correctly determine the position of objects in space is a fundamental task of the visual system. The perceived position of briefly presented static objects can be influenced by nearby moving contours, as demonstrated by various illusions collectively known as motion-induced position shifts. Here we use a stimulus that produces a particularly strong effect of motion on perceived p...

This paper describes a portable vision-based obstacle detection system, intended for use by blind people. The system combines an obstacle detection system designed for AGVs with recalibration of ground position and a Kalman Filter based model of the person’s walking movement. The system uses stereo vision. Obstacle detection is achieved through comparison of the disparity seen with that expecte...

Visual Servoing for a Quadrotor UAV in Target Tracking Applications Marinela Georgieva Popova Master of Applied Science Graduate Department of Aerospace Engineering University of Toronto 2015 This research study investigates the design and implementation of position-based and image-based visual servoing techniques for controlling the motion of quadrotor unmanned aerial vehicles (UAVs). The prim...

The Ministry of Research, Technology and Higher Education Indonesia routinely hosts a competition payload tracking system placed on rocket with Ground Control Station (GCS), known as Kompetisi Muatan Roket dan Indonesia. Fixed GCS antenna causes some problems, including poor communication between GCS, position detection the payload. This research was conducted to create capable moving towards p...

In this paper, two techniques to control UAVs (Unmanned Aerial Vehicles), based on visual information are presented. The first one is based on the detection and tracking of planar structures from an on-board camera, while the second one is based on the detection and 3D reconstruction of the position of the UAV based on an external camera system. Both strategies are tested with a VTOL (Vertical ...

During perception, conflicting visual cues often trade against each other. Recent cue recruitment experiments show that the visual system can be conditioned to use artificial visual cues during the perception of a bistable stimulus. Does the visual system treat the new cue as an independent source of information, separate from the long-trusted cues that were used to train it? If so, presence of...

This paper proposes the auditory evoked potential (SSAEP) stimulation technique as well as its detection algorithm to replace the steady state visual evoked potential (SSVEP)-based brain-computer interface (BCI) system during the visual fatigue period. Optimal speaker position for two commands SSAEP-based BCI system and the possible electrode positions are investigated. With the proposed system...