Method for controlling a photosensitive device

Details Method for controlling a photosensitive device Method for controlling a photosensitive device

H - Electricity

04

N

H04N 5/357 (2011.01) H04N 5/32 (2006.01)

Patent

CA 2449939

The invention relates to a method for controlling a photosensitive device, comprising a matrix of photosensitive points of a type produced, in particular, by means of semiconductor material deposition technology. The invention particularly (but not exclusively) relates to the control of such devices used for the detection of radiological images. The method comprises carrying out a reading phase with a cycle of images, with a useful image preceded by at least one offset image take at an initial timepoint. A correction function from the offset image taken at the initial timepoint (ti) and the time separating the offset image taken at the initial timepoint from the useful image is applied to the useful image.

La présente invention conerne un procédé de commande d'un dispositif photosensible comportant une matrice de points photosensibles du type notamment réalisés par des techniques de dépôt de matériaux semi-conducteurs. L'invention concerne plus particulièrement (mais non exclusivement) la commande de tels dispositifs utilisés pour le détection d'images radiologiques. Le procédé consiste à soumettre le point photosensible lors d'une phase de lecture à un cycle d'images successives comportant une image utile précédée d'au moins une image d'offset réalisée à un instant initial. On applique à l'image utile une correction fonction de l'image d'offset réalisée à l'instant initial et du temps (ti) séparant l'image utile de l'image d'offset réalisée à l'instant initial.

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