公开(公告)号：US12132998B2

公开(公告)日：2024-10-29

申请号：US17686084

申请日：2022-03-03

Applicant: SK hynix Inc.

Inventor： Dong Ik Kim

IPC: H04N23/73 ,  H04N23/68 ,  H04N23/72

CPC classification number: H04N23/73 ,  H04N23/6811 ,  H04N23/72

Abstract: An electronic device according to the present technology may include an image sensor including a plurality of pixel groups respectively corresponding to a plurality of exposure values, and a controller configured to select a reference scale image having a minimum exposure value and a target scale image having an exposure value different from the minimum exposure value, among a plurality of scale images that are obtained based on the plurality of pixel groups, and output an output image obtained using a motion map indicating a positional change of an object that is commonly included in the reference scale image and the target scale image.

公开(公告)号：US11887282B2

公开(公告)日：2024-01-30

申请号：US18192663

申请日：2023-03-30

Applicant: SK hynix Inc.

Inventor： Dong Ik Kim ,  Jin Su Kim ,  Chang Ki Min ,  Seong Hee Park

IPC: G06T5/00 ,  G06T5/50 ,  G06T5/20 ,  H04N5/265 ,  H04N23/741

CPC classification number: G06T5/002 ,  G06T5/009 ,  G06T5/20 ,  G06T5/50 ,  H04N5/265 ,  H04N23/741 ,  G06T2207/20208 ,  G06T2207/30168

Abstract: A noise removing circuit includes an image combiner suitable for generating a high dynamic range (HDR) image by combining images having different exposure times; a detailed image generator suitable for generating a detailed image from the HDR image; an image strength evaluator suitable for evaluating strength of the detailed image; and a noise coring component suitable for performing a noise coring operation for removing noise from a region of the detailed image in which a signal to noise ratio (SNR) has decreased using a low threshold and a saturation threshold when the strength of the detailed image is less than a reference value.

公开(公告)号：US11651476B2

公开(公告)日：2023-05-16

申请号：US17151407

申请日：2021-01-18

Applicant: SK hynix Inc.

Inventor： Dong Ik Kim ,  Jin Su Kim ,  Chang Ki Min ,  Seong Hee Park

IPC: G06T5/00 ,  G06T5/50 ,  G06T5/20 ,  H04N5/265 ,  H04N23/741

CPC classification number: G06T5/002 ,  G06T5/009 ,  G06T5/20 ,  G06T5/50 ,  H04N5/265 ,  H04N23/741 ,  G06T2207/20208 ,  G06T2207/30168

Abstract: A noise removing circuit includes an image combiner suitable for generating a high dynamic range (HDR) image by combining images having different exposure times; a detailed image generator suitable for generating a detailed image from the HDR image; an image strength evaluator suitable for evaluating strength of the detailed image; and a noise coring component suitable for performing a noise coring operation for removing noise from a region of the detailed image in which a signal to noise ratio (SNR) has decreased using a low threshold and a saturation threshold when the strength of the detailed image is less than a reference value.

公开(公告)号：US11290655B1

公开(公告)日：2022-03-29

申请号：US17333786

申请日：2021-05-28

Applicant: SK hynix Inc.

Inventor： Dong Ik Kim

IPC: H04N5/235 ,  H04N5/232 ,  H04N9/04

Abstract: Disclosed is an image sensing device including a sampling module suitable for generating for each color, a plurality of images having different exposure times, based on a single image generated during a single frame time; a correction module suitable for learning correction parameters of the single image based on the plurality of images using a set learning algorithm, and generating a plurality of corrected images by removing the correction parameters from the plurality of images; and an image processing module suitable for generating a high dynamic range image corresponding to the single image, based on the plurality of corrected images.

公开(公告)号：US11669935B2

公开(公告)日：2023-06-06

申请号：US17465718

申请日：2021-09-02

Applicant: SK hynix Inc.

Inventor： Dong Ik Kim

IPC: G06T3/40 ,  G06T7/246 ,  G06V10/56 ,  G06V10/60 ,  H04N23/80

CPC classification number: G06T3/4053 ,  G06T7/246 ,  G06V10/56 ,  G06V10/60 ,  H04N23/815

Abstract: An image processing device includes: an image sensor for acquiring a pixel value of each of a plurality pixels; and a controller for acquiring a pattern image including the pixel value of each of the plurality of pixels and an exposure value representing an exposure time, generating a plurality of super resolution images based on pixels having the same exposure value among the plurality of pixels included in the pattern image, generating a motion map, which represents a motion of an object based on a ratio of exposure values of pixels at a selected position among a plurality of pixels included in the plurality of super resolution images and a ratio of pixel values of the pixels at the selected position, and generating a target image according to a weighted sum of the plurality of super resolution images and the motion map.

公开(公告)号：US11196946B1

公开(公告)日：2021-12-07

申请号：US17140445

申请日：2021-01-04

Applicant: SK hynix Inc.

Inventor： Su Ram Cha ,  Dong Ik Kim ,  Tae Hyun Kim ,  Seong Hee Park

IPC: H04N5/335 ,  H04N5/347 ,  H04N5/351

Abstract: A smart binning circuit includes an edge information generator suitable for generating edge information from pixel data outputted from a pixel array; a weight allocator suitable for allocating a weight based on the edge information; a binning component suitable for generating a binning value by performing an edge detection interpolation (EDI) binning on the edge information; a bayer binning component suitable for generating an average value representing pixels that are down-scaled through a 4-sum binning operation; and a combiner suitable for combining the binning value and the average value according to the allocated weight.