Title :
3D Reconstruction of Dynamic Scenes Dedicated to an Image Sensor of a Visual intracortical stimulator
Author :
Doljanu, D. ; Sawan, M.
Author_Institution :
Polystim Neurotechnol. Lab., Montreal
Abstract :
This paper presents a global architecture of a range finder system based on the stereoscopic principle. The proposed system is dedicated to a visual intracortical stimulator in order to create artificial vision for people suffering from visual blindness. The 3D analysis of the environment is required allowing a better autonomy to the patient. The proposed device consists of an emitter projecting a light pattern from an infrared light source reflecting on a micromirror matrix. Images from the illuminated scene are captured by a camera. The three-dimensional range is reconstructed from the distortions in the reflected and captured image. Our approach to encode light patterns consists of taking advantage of a high-speed camera and adapting the Gray coded patterns to dynamic scenes.
Keywords :
Gray codes; computer vision; distance measurement; image reconstruction; image sensors; stereo image processing; vision defects; Gray coded patterns; artificial vision; distortions; dynamic scenes; high-speed camera; illuminated scene; image reconstruction; image sensor; infrared light source; micromirror matrix; range finder system; stereoscopic principle; visual blindness; visual intracortical stimulator; Blindness; Cameras; Computer architecture; Image reconstruction; Image sensors; Laboratories; Layout; Light sources; Micromirrors; Robustness;
Conference_Titel :
Computer Architecture for Machine Perception and Sensing, 2006. CAMP 2006. International Workshop on
Conference_Location :
Montreal, Que.
Print_ISBN :
978-1-4244-0685-2
Electronic_ISBN :
978-1-4244-0686-9
DOI :
10.1109/CAMP.2007.4350376
