公开(公告)号：US10567723B2

公开(公告)日：2020-02-18

申请号：US16102255

申请日：2018-08-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Prajit Sivasankaran Nair ,  Bala Siva Sashank Jujjavarapu ,  Narasimha Gopalakrishna Pai ,  Akshay Kumar

IPC: H04N9/73 ,  G02B5/20 ,  H04N5/33 ,  H04N9/04

Abstract: A system and a method for detecting light sources in a multi-illuminated environment using a composite red-green-blue-infrared (RGB-IR) sensor is provided. The method comprises detecting, by the composite RGB-IR sensor, a multi-illuminant area using a visible raw image and a near-infrared (NIR) raw image of a composite RGBIR image, dividing each of the visible raw image and the NIR raw image into a plurality of grid samples, extracting a plurality of illuminant features based on a green/NIR pixel ratio and a blue/NIR pixel ratio, estimating at least one illuminant feature for each grid sample by passing each grid sample through a convolution neural network (CNN) module using the extracted plurality of illuminant features, and smoothing each grid sample based on the estimated at least one illuminant feature.