Patent ID: 7483151
Filing Date: 2009-01-27
Classification: G01S,H04N

Abstract:
1. Active 3D triangulation-based imaging method comprising steps of: temporally modulating a radiant flux of a lighting unit beam by a binary modulation signal (ms); illuminating a scene (S), which is illuminated by an ambient lighting (AL), by said modulated lighting unit beam (mlub); splitting a ray (ir) imaging a point (SP) of the scene (S) into two separate imaging rays (ir said first separate imaging ray (ir temporally modulating a radiant flux of the second separate imaging ray (ir said modulated second separate imaging ray (ir normalizing a first scene image being an image of all points of the scene (S) formed in the first sensor (is a second scene image being an image of all points of the scene (S) formed in the second sensor (is subtracting the first normalized scene image from the second normalized scene image.