We present control methods for an autonomous four-rotor helicopter, called a quadrotor, using visual feedback as the primary sensor. The vision system uses a ground camera to esti...
A real-time visual processing system using a generalpurpose vision chip, an image sensor in which photo detectors and processing elements are integrated, is described. In order to...
— This paper deals with visual servoing from three points. Using the geometric properties of the spherical projection of points, a new decoupled set of six visual features is pro...
— In this paper we show that visual landmark generation and redetection is possible with a single feature per frame. The approach is based on the assumption that highly discrimin...
The purpose of this paper is to estimate the position of a human in the image frame and to use this information to diagnose falls. A nonholonomic locomotion model describes the dis...