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1.发明授权公开(公告)号：US11722795B2
公开(公告)日：2023-08-08
申请号：US17670793
申请日：2022-02-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Daeyoung Kim , Kundong Kim , Jongwoo Kim , Suyoung Lee
IPC: H04N5/355 , H04N25/59 , H04N25/60 , H04N25/587
CPC classification number: H04N25/59 , H04N25/587 , H04N25/60
Abstract: Disclosed is a device for noise reduction using dual conversion gain, which includes an image sensor including a pixel array, the pixel array configured to generate a first pixel signal corresponding to a first conversion gain and a second pixel signal corresponding to a second conversion gain from pixels sharing a floating diffusion region and the image sensor configured to generate first image data and second image data based on the first pixel signal and the second pixel signal, and an image signal processor that generates an output image based on the first image data and the second image data. The image signal processor includes a normalization circuit that normalizes the first image data based on a dynamic range of the second image data to generate third image data, and a blending circuit that generates the output image based on the second image data and the third image data.
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公开(公告)号：US11785355B2
公开(公告)日：2023-10-10
申请号：US17474740
申请日：2021-09-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Young Heub Jang , Kundong Kim , Sungsu Kim , Hyungwook Kim , Jiyun Bang , Hankook Cho , Jaehyuk Hur
IPC: H04N25/46 , H04N25/702
CPC classification number: H04N25/46 , H04N25/702
Abstract: An image processing device includes an image sensor including a pixel array that includes a first pixel group, and a correlated double sampling circuit. The first pixel group includes a first plurality of normal pixels, a second plurality of normal pixels, and at least one first phase detection pixel. The correlated double sampling circuit is configured to generate first video data, based on charges of the first plurality of normal pixels, generate second video data, based on charges of the second plurality of normal pixels, and generate first phase detection data, based on an output of the at least one first phase detection pixel. The image processing device further includes an image signal processor configured to apply a first weight to the generated first video data, and apply a second weight to the generated second video data.
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公开(公告)号：US12236567B2
公开(公告)日：2025-02-25
申请号：US17868434
申请日：2022-07-19
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seungwan Jeon , Kundong Kim , Sungsu Kim , Daeil Yu , YuGyung Lee , Joon-Seo Yim
Abstract: An image evaluation method, including: obtaining a test image including a first lattice pattern formed by image edges; aligning the test image using the image edges to generate an aligned image including a second lattice pattern formed by aligned image edges; generating a compressed image by compressing the aligned image; and generating a quantified result by quantifying a per-pixel difference between the compressed image and the aligned image.
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公开(公告)号：US11601625B2
公开(公告)日：2023-03-07
申请号：US17078605
申请日：2020-10-23
Applicant: Samsung Electronics Co., Ltd.
Inventor： Kundong Kim , Sungsu Kim , Younghoon Kim , Jungmin Lee
Abstract: An electronic device includes a frequency analyzing circuit and a color difference calculating circuit. The frequency analyzing circuit receives an image signal including information about a subject, may convert the image signal into first color data which are based on a first color domain, converts the first color data into frequency data which are based on a frequency domain, and applies frequency weights corresponding to the frequency data to the first color data to generate processed color data. The color difference calculating circuit calculates color difference values for evaluating a color stain generated by the image signal, based on the processed color data. The frequency weights are selected based on sensitivity information of an observer according to a frequency change of the frequency data.
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