DEVELOPMENT
GVPP: A Generic Technology with Sense & Avoid
Applications. 4th. European micro-UAV Meeting
15-17 September 2004 Toulouse France
Patrick Pirim
BEV Development, Luxembourg
E-mail: patrick.pirim@bev.lu
Abstract: We postulate that humans, through high-level orders that they will autonomously and adaptively execute, will command the UAV of the future. We want to endow these UAV with some capacities for autonomy and adaptation that characterize mere animals in general and birds in particular. Such capacities will call upon both integrated multimodal sensory perception – e.g. to orient to important stimuli - and cognitive skills - e.g., to learn and memorize a given situation or event, or to plan a trajectory, with obstacles avoidance by optical flow:
The UAV tends to stay in the middle of narrow corridors, while its forward velocity is automatically reduced when the obstacle density increases. Moreover, when heading into a frontal obstacle, the understanding is able to generate a tight U-turn that ensures the UAV’s survival.
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Key words: optic flow, obstacle-avoidance,
GVPP,
1. Introduction
In its current stage of development, the biomimetic design of GVPP chip produced by
BEV affords it the unique feature of exhibiting four of the main adaptive capacities that characterize natural vision.
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Real-time information processing: through circuits dedicated to movement, speed, colour, hue and luminance, oriented edges, corners, the system monitors visual inputs on-line, thus
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making quick reactions and efficient predictions possible. Successive images are not recorded but processed on-line according to previous-step anticipations.
Detection of objects or events through temporal coincidences and unsupervised collective decisions: to detect a landmark or an object within an ever-changing flow of images entails being able of singularising sets of coherent data
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