Raymond A. Jarvis

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Chronic administration of antipsychotic drugs produces adaptive responses at the cellular and molecular levels that may be responsible for both the main therapeutic effects and rebound psychosis, which is often observed upon discontinuation of these drugs. Here we show that some antipsychotic drugs produce significant functional changes in serotonergic(More)
A localisation system is an essential knowledge for a mobile robot to be able to freely navigate in its world. In this paper, pose estimation and tracking of a mobile robot is presented for an indoor cluttered environment using only an overhead panoramic vision system. The method presented is fast without requiring unwrapping of the panoramic view. It is(More)
In this paper, we present a prototype robotic system that captures, processes and fuses speech, vision and laser-depth data to more accurately interpret and perform simple tasks in a domestic environment. We can never assume that any one of these inputs are completely accurate, but by using a combination, a more accurate interpretation could be found. For(More)
Horizon detection is a pre-cursor to vision processing in air and water robotics. This paper makes three contributions to horizon detection. First, a theoretical framework for generating pseudo spectra images (PSI), from spectrum analysis of XYZ color-space is presented. Second, wavelengths in the visible spectrum are identified, at which the PSI has(More)
An essential feature for personal robots in domestic environments is the quality of its interaction. This work describes a Contextually Informed MultiModal Integrator, CIMMI, that fuses speech and symbolic gestures probabilisti-cally and is informed by contextual knowledge in an assistive technology robotic application. Symbolic gestures are gestures that(More)
In this paper, we present two methods of performing eye-to-hand visual servoing using vision and tactile information: direct fuzzy servoing and fuzzy correction. The fuzzy methods are tuned by an adaptive neuro-fuzzy inference system (ANFIS). The set-up is part of a humanoid robot, named COERSU (Jafari and Jarvis, 2003). Experimental results from COERSU are(More)
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