Optical imager using a method for adaptive real-time...

Details Optical imager using a method for adaptive real-time... Optical imager using a method for adaptive real-time...

H - Electricity

04

N

H04N 3/15 (2006.01)

Patent

CA 2347526

Method and apparatus for expanding the dynamic range of an optical imager, comprising individually controlling the integration time of each pixel of a sensor array, and providing a corresponding scaling factor for the electrical output of each individual pixel during the frame time. The integration time of each pixel is controlled as a function of light intensity received by each individual pixel, by resetting the pixel after a predetermined threshold for the output signal, has been reached.

Procédé et dispositif d'expansion de la plage dynamique d'un imageur optique, ce qui consiste à commander individuellement la durée d'intégration de chaque pixel d'un ensemble détecteur et à produire un facteur correspondant de mise à l'échelle pour la sortie électrique de chaque pixel individuel pendant la durée d'image. On commande la durée d'intégration de chaque pixel en fonction de l'intensité lumineuse reçue par chaque pixel individuel, en effectuant une remise du pixel à l'état initial lorsqu'un seuil prédéterminé du signal de sortie est atteint.

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