Testing surveillance camera installations

H - Electricity – 04 – N

Patent

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Details

H04N 7/18 (2006.01) G06F 11/00 (2006.01)

Patent

CA 2644451

This invention concerns the testing of surveillance camera installations. In particular, the invention involves an automatic testing system for surveillance camera installations, and a method for testing. The invention involves receiving test or "probe" images from at least one camera in the installation. Storing a reference image from at least the one camera. Comparison of the probe image with a reference image from the same camera, and production of an output when maintenance is required for that camera. The comparison involves the steps of: Extracting salient features from both the probe and reference images. Calculating matching factors between the salient features extracted from both images. And, computing a decision about whether maintenance is required from the matching factors.

L'invention concerne les essais concernant les installations de caméras de surveillance. En particulier, l'invention utilise un système d'essais automatiques concernant les installations de caméras de surveillance, et une méthode d'essais. L'invention implique les étapes consistant à : recevoir des images d'essai, ou <= images sondes >=, depuis au moins une caméra de l'installation, stocker une image de référence de ladite ou desdites caméras de l'installation, comparer l'image d'essai avec l'image de référence de la même caméra et produire un signal de sortie lorsque ladite caméra exige des travaux de maintenance. La comparaison implique les étapes consistant à : extraire des caractéristiques saillantes de l'image de référence et de l'image d'essai, calculer les facteurs de similitude entre les caractéristiques saillantes extraites des deux images et par calcul prendre une décision quant à la nécessité de travaux de maintenance à partir des facteurs de similitude.

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