Instead of the standard RGB three-filter set, our Gemini system uses unique high transmission color filters to produce a full color image from two channels under all lighting conditions, including extreme low light".
Scallop says that from its research over the years in human color vision it has developed a system that human observer perceives at full color despite only 2 colors are being used.
Not much more info is given. A 112MB video file from 1.2MP monochrome CMOS sensor (3.75 µm pixel) equipped with Gemini color filters compares to the color version of the same image sensor.
A video frame recorded at 0.18 lux (equivalent to 3/4 moon), 15 fps taken with
a color 1.2 megapixel image sensor.
|Capture from video - same image as above post-processed to add brightness|
A Gemini prototype video frame taken with the same exposure and frame rate
as above, with monochrome 1.2 Mpixel image sensors equipped with Gemini
|0.06 Lux (equivalent to crescent moon), 15fps Capture from Gemini video|
|Magnified image shows there are only two color channels.|
Update: Added another snapshot of Gemini technology demo from the video - the picture below was created out of one monochrome and one filtered channel: