公开(公告)号：US20220222871A1

公开(公告)日：2022-07-14

申请号：US17389576

申请日：2021-07-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman Abdelhamed ,  Michael Scott Brown ,  Jonghwa Yim ,  Jihwan Choe ,  Kihwan Kim

IPC: G06T11/00 ,  G06K9/46 ,  G06K9/62

Abstract: A method for generating an image that includes at least one of a vignette effect or a grain effect corresponding to an input image may include obtaining the input image including at least one of the vignette effect or the grain effect; identifying at least one of a vignette parameter or a grain parameter of the input image; obtaining at least one of a vignette filter based on the vignette parameter or a grain layer based on the grain parameter; and generating the image that includes at least one of the vignette effect or the grain effect by applying at least one of the vignette filter or the grain layer to the image.

公开(公告)号：US20240029460A1

公开(公告)日：2024-01-25

申请号：US18143306

申请日：2023-05-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Michael Scott Brown ,  Abhijith Punnappurath ,  Abdelrahman Abdelhamed ,  Luxi Zhao

IPC: G06V20/00 ,  G06V10/82

CPC classification number: G06V20/95 ,  G06V10/82

Abstract: An electronic device may be provided to identify fake pixels from an image that is processed via an image processor that uses artificial intelligence (AI) technology and/or an AI camera module to perform image authentication. The electronic device may be configured to: obtain an input image; obtain a processed image of the input image via AI-based model; generate authentication metadata that indicates fake pixels that have been generated by the AI-based model; store the authentication metadata in association with the processed image in the at least one memory; and output the processed image with an indication of the fake pixels.

公开(公告)号：US20220156899A1

公开(公告)日：2022-05-19

申请号：US17377656

申请日：2021-07-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman Abdelhamed ,  Abhijith Punnappurath ,  Michael Scott BROWN

IPC: G06T5/00 ,  G06T7/11 ,  G06T3/40 ,  G06T7/30 ,  G06T7/90 ,  H04N5/247

Abstract: A method for processing image data may include: obtaining a first image and a second image that capture a same scene in different views, from a first camera and a second camera, respectively; spatially aligning the first image with the second image; obtaining a color transformation matrix that maps the first image to the second image based on color values of the first image and the second image; obtaining an estimated illuminant color from an output of a neural network by inputting the color transformation matrix to the neural network, wherein the neural network is trained based on a pair of reference images of a same reference scene and a color rendition chart that are captured by different cameras having different spectral sensitivities; and performing a white balance correction on the first image based on the estimated illuminant color to output a corrected first image.

公开(公告)号：US12293497B2

公开(公告)日：2025-05-06

申请号：US18105660

申请日：2023-02-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman Abdelhamed ,  Abhijith Punnappurath ,  Michael Scott Brown

IPC: G06T5/92 ,  G06T3/40 ,  G06T7/11 ,  G06T7/30 ,  G06T7/90 ,  G06V10/141 ,  G06V10/24 ,  G06V10/56 ,  G06V10/82 ,  H04N9/73 ,  H04N23/85 ,  H04N23/90 ,  H04N25/17

Abstract: A method for processing image data may include: obtaining a first image and a second image that capture a same scene in different views, from a first camera and a second camera, respectively; spatially aligning the first image with the second image; obtaining a color transformation matrix that maps the first image to the second image based on color values of the first image and the second image; obtaining an estimated illuminant color from an output of a neural network by inputting the color transformation matrix to the neural network, wherein the neural network is trained based on a pair of reference images of a same reference scene with a color rendition chart that are captured by different cameras having different spectral sensitivities; and performing a white balance correction on the first image based on the estimated illuminant color to output a corrected first image.

公开(公告)号：US20240177278A1

公开(公告)日：2024-05-30

申请号：US17993357

申请日：2022-11-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Changgeng Liu ,  Luxi Zhao ,  Ziwen Jiang ,  Abdelrahman Abdelhamed ,  Abhijith Punnappurath ,  Ye Zhao ,  Ernest Rehmatulla Post ,  Michael Brown ,  Sajid Sadi

IPC: G06T5/00 ,  G06T5/50

CPC classification number: G06T5/003 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/20201

Abstract: In one embodiment, a method includes generating, from an accessed image, one or more image patches, and for each image patch: (1) accessing a set of point-spread functions (PSFs), wherein each PSF in the set of PSFs corresponds to one of a plurality of points in the image patch; (2) generating a set of deconvolved image patches by deconvolving the image patch with each PSF from the set of PSFs for that patch; (3) determining, for each of one or more portions of the image patch, a set of weights, wherein each weight in the set of weights is associated with one of the deconvolved image patches; and (4) generating a restored image patch by interpolating the set of deconvolved image patches based on the set of weights.

公开(公告)号：US11631202B2

公开(公告)日：2023-04-18

申请号：US17389576

申请日：2021-07-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman Abdelhamed ,  Michael Scott Brown ,  Jonghwa Yim ,  Jihwan Choe ,  Kihwan Kim

IPC: G06T11/00 ,  G06T5/00 ,  G06T7/00 ,  G06K9/62 ,  G06V10/50 ,  H04N5/77 ,  H04N5/225 ,  H04N5/238

Abstract: A method for generating an image that includes at least one of a vignette effect or a grain effect corresponding to an input image may include obtaining the input image including at least one of the vignette effect or the grain effect; identifying at least one of a vignette parameter or a grain parameter of the input image; obtaining at least one of a vignette filter based on the vignette parameter or a grain layer based on the grain parameter; and generating the image that includes at least one of the vignette effect or the grain effect by applying at least one of the vignette filter or the grain layer to the image.

公开(公告)号：US12148186B2

公开(公告)日：2024-11-19

申请号：US17566448

申请日：2021-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman Abdelhamed ,  Luxi Zhao ,  Michael Scott Brown

IPC: G06T7/90 ,  G06T5/20 ,  G06T5/94 ,  G06T7/11 ,  G06T11/00 ,  G06V10/56

Abstract: A method is provided. The method includes receiving an input image, extracting at least one feature from the input image, determining at least one local tone curve for a portion of the input image based on the extracted at least one feature, the portion of the input image being less than an overall area of the input image, and generating a toned image based on the at least one local tone curve.

公开(公告)号：US12106524B2

公开(公告)日：2024-10-01

申请号：US17566448

申请日：2021-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdelrahman Abdelhamed ,  Luxi Zhao ,  Michael Scott Brown

IPC: G06T7/90 ,  G06T5/20 ,  G06T5/94 ,  G06T7/11 ,  G06T11/00 ,  G06V10/56

CPC classification number: G06T7/90 ,  G06T5/20 ,  G06T5/94 ,  G06T7/11 ,  G06T11/001 ,  G06V10/56 ,  G06T2207/10024

Abstract: A method is provided. The method includes receiving an input image, extracting at least one feature from the input image, determining at least one local tone curve for a portion of the input image based on the extracted at least one feature, the portion of the input image being less than an overall area of the input image, and generating a toned image based on the at least one local tone curve.

公开(公告)号：US12015855B2

公开(公告)日：2024-06-18

申请号：US17566425

申请日：2021-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Abdullah Abuolaim ,  Abhijith Punnappurath ,  Abdelrahman Abdelhamed ,  Michael Scott Brown ,  Aleksai Levinshtein

IPC: H04N23/73 ,  H04N23/74 ,  H04N25/60

CPC classification number: H04N23/73 ,  H04N23/74 ,  H04N25/60

Abstract: A method of generating a low-light image is provided. The method includes receiving a raw image, removing an amount of first illumination from the raw image, applying a low exposure condition to the raw image having the amount of first illumination removed, and applying an amount of low-light illumination to the raw image having the applied low exposure condition.

公开(公告)号：US20240071041A1

公开(公告)日：2024-02-29

申请号：US18227456

申请日：2023-07-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Abdelrahman Abdelhamed ,  Michael S. Brown ,  Abhijith Punnappurath ,  Hoang Minh Le ,  Luxi Zhao

IPC: G06V10/56 ,  G06V10/141 ,  G06V10/54

CPC classification number: G06V10/56 ,  G06V10/141 ,  G06V10/54

Abstract: A method for processing image data, including obtaining a raw input image that is captured using a first image sensor under an input illumination condition; obtaining, using a transform estimator, a color transform that maps a characteristic of the first image sensor to a characteristic of a second image sensor, based on the input illumination condition; and generating a raw output image having the characteristic of the second image sensor based on the raw input image and the color transform.