H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 13/02 (2006.01) A61B 1/00 (2006.01) G02B 7/06 (2006.01) G02B 7/28 (2006.01) G02B 23/24 (2006.01) H04N 13/00 (2006.01)
Patent
CA 2220194
A stereoscopic image of an object (14) is focused on an image pickup device (32) based on the degree to which left and right images of the object are coincident on the image pickup device (32). Signals produced by the image pickup device (32) that represent the left and right images are compared with each other to develop a control signal that indicates the coincidence of the left and right images on the image pickup device (32), and the spacing between the image pickup device (32) and an optical element (18) that directs the images onto the device (32) is changed in response to the control signal to increase the coincidence. Rangefinding and videometry are also performed to determine the distance to the object (14) being viewed, as well as its position and size.
Une image stéréoscopique d'un objet (14) est focalisée sur un dispositif (32) de prise d'image sur la base du degré auquel des images gauche et droite de l'objet sont coincidentes sur le dispositif (32) de prise d'image. Les signaux produits par le dispositif (32) de prise d'image représentant des images gauche et droite sont comparés l'un à l'autre afin de développer un signal de commande indiquant la coincidence des images gauche et droite sur le dispositif (32) de prise d'image, et l'écartement entre le dispositif (32) de prise d'image et un élément optique (18) orientant l'image sur le dispositif (32) est changé en réponse au signal de commande afin d'augmenter la coincidence. La télémétrie et la vidéométrie sont également appliquées afin de déterminer la distance à l'objet visualisé (14), ainsi que sa position et sa taille.
Borden Ladner Gervais Llp
Smith & Nephew Inc.
LandOfFree
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