US 12,464,207 B2
Image sensor with an integrated infrared cut-off filter
Boon Teong Ooi, Penang (MY); Kwang Chun Oh, Penang (MY); Jin Hoe Phua, Penang (MY); and Leslie Kok Lik Toh, Penang (MY)
Assigned to MOTOROLA SOLUTIONS, INC., Chicago, IL (US)
Filed by MOTOROLA SOLUTIONS, INC., Chicago, IL (US)
Filed on Dec. 28, 2022, as Appl. No. 18/147,652.
Prior Publication US 2024/0223874 A1, Jul. 4, 2024
Int. Cl. H04N 23/11 (2023.01); G02B 27/42 (2006.01); G06V 10/143 (2022.01); G06V 10/74 (2022.01); H04N 1/60 (2006.01); H04N 23/55 (2023.01); H04N 23/667 (2023.01)
CPC H04N 23/11 (2023.01) [G06V 10/143 (2022.01); G06V 10/761 (2022.01); H04N 1/60 (2013.01); H04N 23/55 (2023.01); H04N 23/667 (2023.01); G02B 27/4294 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An imaging system comprising:
an image sensor including a plurality of image recording pixels and a plurality of reserved pixels, wherein a subset of the plurality of reserved pixels are covered by an infrared cut-off filter;
an electronic processor coupled to the image sensor and configured to:
determine a first visible light intensity for the subset of the plurality of reserved pixels;
determine a second visible light intensity for the plurality of image recording pixels; and
control the image sensor to operate in one of a day mode and a night mode by:
determining a difference between the first visible light intensity and the second visible light intensity;
comparing the difference to a visible light intensity threshold;
controlling the image sensor to operate in a day mode when the difference exceeds the visible light intensity threshold; and
controlling the image sensor to operate in a night mode when the difference does not exceed the visible light intensity threshold.