Dual spectral band network camera

Details Dual spectral band network camera Dual spectral band network camera

2004-07-14

2009-02-17

Henn, Timothy J (Department: 2622)

Television

Camera, system and detail

Low light level

C348S211300

Reexamination Certificate

active

07492390

ABSTRACT:
The subject of this invention is the network camera sensitive to both visual and near-infrared or infrared spectral bands and comprising two or more image sensors with different spectral responses, one or more image processors, and network interfaces. In the preferred embodiment the network camera disclosed in this invention comprises two image sensors with individual optics, where both sensors have similar fields of view. In the preferred embodiment of the present invention one of the sensors is color image sensor with infrared-cut filter positioned in front of pixel array, while the other sensor is monochrome image sensor with optics characterized by lower f-number than that used for color sensor and without infrared-cut filter in its field of view. In one of the embodiments of this invention, monochrome sensor has larger pixel sizes than color sensor to provide for higher low-light sensitivity.

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