Combining multiple spectral bands to generate an image

H - Electricity – 04 – N

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H04N 5/33 (2006.01) H04N 9/04 (2006.01)

Patent

CA 2538803

Generating an image includes receiving light associated with spectral bands. The following are repeated for each spectral band: an electrical signal is received at an electro-optical element, an optical property of the electro- optical element is changed in response to the electrical signal to filter for a spectral band, and the spectral band is transmitted to a sensor. The spectral bands are sensed at the sensor. The spectral bands are combined to generate a composite signal, and an image is generated from the composite signal.

La production d'une image comprend la réception de lumière associée à des bandes spectrales. Les étapes suivantes sont répétées pour chaque bande spectrale: un signal électrique est reçu au niveau d'un élément électro-optique; une propriété optique de l'élément électro-optique, est modifiée en réponse au signal électrique reçu, afin de réaliser un filtrage pour une bande spectrale ; et la bande spectrale est transmise à un détecteur. Les bandes spectrales sont détectées au niveau du détecteur. Les bandes spectrales sont combinées pour produire un signal composite, et une image est produite à partir du signal composite.

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