Image pickup system

H - Electricity – 04 – N

Patent

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Details

H04N 5/235 (2006.01) H04N 5/225 (2006.01) H04N 5/33 (2006.01) H04N 5/335 (2006.01)

Patent

CA 2494095

An image pickup system includes an IR lamp for applying infra-red ray forward, a CCD camera (5) for imaging the forward and converting it into an electric signal, and an image processing unit (7) for changing the signal accumulation time of the CCD camera (5) by a predetermined cycle and continuously and periodically outputting images of different exposure amounts. The image processing unit (7) prolongs the images of different exposure amounts in the longitudinal direction and averages signal levels of the both images after prolonged, thereby forming a combined image.

Système de prise de vue comprenant une lampe à infrarouge servant à appliquer un rayon infrarouge, une caméra CCD (5) servant à prendre l'image de ce rayon et à le convertir en signal électrique et une unité de traitement d'image (7) servant à modifier la durée d'accumulation de la caméra CCD (5) selon un cycle prédéterminé, ainsi qu'à sortir des images en continu et périodiquement présentant différents niveaux d'exposition. Cette unité de traitement d'image (7) prolonge les images présentant différents niveaux d'exposition dans le sens de la longueur et met en moyenne les niveaux de signaux des deux images après prolongation, ce qui permet d'obtenir une image combinée.

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