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This paper presents the design of an array of avalanche photodiodes (APD) in standard CMOS technology for a 3-D camera. The distance measurement is based on the time of flight principle, more precisely on the phase-shift measurement method. The pixel is operated in permanent sinusoidal regime based on optoelectronic mixing technique. Circuit simulations allowed the architecture validation and the...
An image-based technique with high measurement rate has been proposed to measure the distance between two moving vehicles. By combining several near-infrared (NIR) LED markers mounted on the forward vehicle with an NIR-filtered CMOS camera mounted on the backward vehicle, one can clearly recognize the marker shape and positions without any adjusting the focus lens of camera, and hence he can extremely...
A novel imaging technique is proposed for fully digital detection of phase and intensity of light. A fully integrated camera implementing the new technique was fabricated in a 0.35 mum CMOS technology. When coupled to a modulated light source, the camera can be used to accurately and rapidly reconstruct a 3D scene by evaluating the time-of-flight of the light reflected by a target. In passive mode,...
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