Imaging system

Details Imaging system Imaging system

H - Electricity

04

N

H04N 5/335 (2006.01) H04N 3/15 (2006.01) H04N 5/217 (2006.01)

Patent

CA 2239117

An imaging system comprises an image detection unit (52) and a filter unit (58). Pixel image signals are passed in parallel from the image detection unit (52) to the filter unit (58). Circuit elements within each pixel (56) generate pixel image signal whose amplitude is proportional to the logarithm of the image intensity at that pixel. The filter unit (58) carries out a spatial filtering operation and outputs the result.

Un système d'imagerie comprend une unité de détection d'image (52) et une unité filtre (58). Les signaux d'images numérisées sont transmis en parallèle depuis l'unité de détection d'image (52) jusqu'au filtre (58). Des éléments circuits inclus dans chaque pixel (56) génèrent un signal d'image numérisée dont l'amplitude est proportionnelle au logarithme de l'intensité de l'image au niveau de ce pixel. Le filtre (58) effectue une opération de filtrage spatial et sort le résultat.

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