US 12,464,258 B2
Image sensor with red-clear-clear-green (RCCG) color filter array (CFA) for vehicle sensing applications
Per Knutsson, Linkoping (SE); Henrik Eliasson, Blentarp (SE); and Leif Lindgren, Linkoping (SE)
Assigned to Qualcomm Auto Ltd., San Diego, CA (US)
Filed by Qualcomm Auto LTD.
Filed on Sep. 8, 2022, as Appl. No. 17/930,596.
Prior Publication US 2024/0089618 A1, Mar. 14, 2024
Int. Cl. H04N 25/133 (2023.01); H04N 9/64 (2023.01); H04N 23/84 (2023.01); H04N 25/11 (2023.01); H04N 25/13 (2023.01)
CPC H04N 25/133 (2023.01) [H04N 9/64 (2013.01); H04N 23/84 (2023.01); H04N 23/843 (2023.01); H04N 25/11 (2023.01); H04N 25/134 (2023.01); H04N 25/135 (2023.01)] 17 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving image data from an image sensor comprising a red-clear-clear-green (RCCG) color filter, wherein the image data comprises a first channel corresponding to red, a second channel corresponding to clear, and a third channel corresponding to green, and wherein a first portion of the image data is in a logarithmic domain and a second portion of the image data is in a linear domain, the first and second portions corresponding to different ones of the first to third channels; and
processing the image data by performing operations including demosaicing and color mapping, wherein at least some of the operations are performed in the logarithmic domain on the first channel and the second channel and at least some of the operations are performed in the linear domain on the third channel.