A General Qualitative Spatio-Temporal Model Based on Intervals

Many real-world problems involve qualitative reasoning about space and/or time. Actually, it is an adequate tool for dealing with situations in which information is not sufficiently precise. However, despite its numerous applications, it is difficult for people from outside the field to incorporate the required reasoning techniques into their methods. In this paper, we present a general, easy-to-use framework that integrates and solves the reasoning process of all qualitative models based on intervals. This framework has been divided into: (1) a representation magnitude and (2) the resolution of the reasoning process. Mainly, the developed method for solving the reasoning process is based on the definition of two algorithms: the qualitative sum and the qualitative difference. In addition, here, different instances of the model as well as some practical applications of them are presented

An Integrated Virtual Environment for Visual-based Reaching

An interactive application to test different visuo-motor interactions is presented. The long term goal is to obtain a perceptual agent capable of achieving a full 3D awareness for interaction control/planning in the peripersonal space by using the interplay between vision and motion. We have developed an integrated virtual reality environment that implements robotic reaching tasks based on stereo visual cues. Stereo processing adopts a generalized phase-based algorithm to handle the 2D disparities present in active stereo vision system in order to achieve high accuracy