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公开(公告)号：US20190199948A1
公开(公告)日：2019-06-27
申请号：US15980456
申请日：2018-05-15
Inventor： Min Hyuk KIM , Inchang CHOI
Abstract: An HDR imaging apparatus include: a deinterlacing circuit configured to generate a high-exposure Bayer frame and low-exposure Bayer frame by deinterlacing an interlace Bayer raw frame in which a high-exposure region and low-exposure region are interlaced; a demosaicing circuit configured to convert the high-exposure Bayer frame and the low-exposure Bayer frame into a high-exposure RGB frame and low-exposure RGB frame, respectively; a reconstructing circuit configured to remove interlace artifacts and noise from the high-exposure RGB frame and the low-exposure RGB frame, using joint dictionaries generated through joint dictionary learning on training data sets each containing a plurality of bases, but the corresponding bases have different values; and an HDR generation circuit configured to generate an HDR image frame by combining the high-exposure RGB frame and the low-exposure RGB frame from which interlace artifacts and noise were removed by the reconstructing circuit.
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公开(公告)号：US20240248182A1
公开(公告)日：2024-07-25
申请号：US18532875
申请日：2023-12-07
Inventor： Min Hyuk KIM , Daniel S. Jeon
IPC: G01S7/487 , G01S7/4865 , G01S17/894
CPC classification number: G01S7/487 , G01S7/4866 , G01S17/894
Abstract: Detecting a multi-path interference component in a time-of-flight (ToF) camera may be performed by generating a confidence map in which a distortion area attributable to a multi-path interference component included in a reflection modulation signals is specified, where the reflection modulation signals is generated when two modulation signals emitted from a light source to a subject return to the ToF camera after being reflected by the subject. Correcting the multi-path interference component corrects distortion attributable to a multi-path interference component, which may include correcting only the distortion area specified in the confidence map. Detecting the multi-path interference component in a ToF camera includes collecting the reflection modulation signal at a plurality of different times, calculating amplitudes and offsets of the collected reflection modulation signals, determining whether a multi-path interference component is included in the reflection modulation signal, and generating the confidence map.
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公开(公告)号：US20230010725A1
公开(公告)日：2023-01-12
申请号：US17540632
申请日：2021-12-02
Inventor： Min Hyuk KIM , Daniel S. JEON
Abstract: A method of reduce the impact of noise on a depth image produced using a Time Of Flight (TOF) camera uses an infrared image produced from one or more phase-specific images captured by the TOF camera to determine whether to move pixels in the depth image from one phase section to another.
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公开(公告)号：US20200169691A1
公开(公告)日：2020-05-28
申请号：US16695886
申请日：2019-11-26
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Se-Yoon JEONG , Min Hyuk KIM , Shinyoung YI , Jung-Won KANG , Hui-Yong KIM , Hakyeong KIM
Abstract: Disclosed herein are a method and apparatus for luminance-adaptive opto-electrical transfer and luminance-adaptive electro-optical transfer. For video transmission and compression, opto-electrical transfer and electro-optical transfer are required. The surround luminance and luminance range of an image are taken into consideration when performing opto-electrical transfer and electro-optical transfer. An opto-electrical transfer function may be derived based on a contrast sensitivity function that takes into consideration the surround luminance of an image. Also, parameters relevant to surround luminance may be signaled from an encoding apparatus to a decoding apparatus, and an electro-optical transfer function may be derived based on the parameters.
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公开(公告)号：US20230206551A1
公开(公告)日：2023-06-29
申请号：US18172716
申请日：2023-02-22
Inventor： Min Hyuk KIM , Joo Ho LEE , Hyun Jin KU , Dahyun KANG , Hyunho HA
IPC: G06T17/00 , G06T3/40 , G06V10/141 , G06V10/60 , G06V10/74 , G06V10/762 , H04N23/56
CPC classification number: G06T17/00 , G06T3/40 , G06V10/141 , G06V10/60 , G06V10/761 , G06V10/762 , H04N23/56 , G06T2207/10024 , G06T2207/10028 , G06T2207/20016
Abstract: An electronic device and a control method thereof are provided. The electronic device includes a camera, a camera flash, and at least one processor configured to control the camera to capture a natural light image and a depth image of an object, control the camera and the camera flash to capture an artificial light image of the object, obtain distance information from the depth image to generate a depth mask image, create a cluster mask image from the natural light image, obtain a flash image in which the illuminance of the natural light image has been removed from the illuminance of the artificial light image, obtain an optimization parameter based on the distance information, the depth mask image, the cluster mask image, and the flash image, and obtain three-dimensional topographic information and surface reflection information about the object based on the obtained optimization parameter.
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Patent Agency Ranking
公开(公告)号：US20190096044A1
公开(公告)日：2019-03-28
申请号：US16140347
申请日：2018-09-24
Inventor： Min Hyuk KIM , Seung-Hwan BAEK , Incheol KIM
Abstract: A method for reconstructing a hyperspectral image and a system therefor are provided. The method includes obtaining a dispersion model for dispersion created by a prism included in a camera, the prism including no coded aperture, and reconstructing a hyperspectral image corresponding to a captured image based on the dispersion model.
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7.发明申请公开(公告)号：US20220321859A1
公开(公告)日：2022-10-06
申请号：US17656049
申请日：2022-03-23
Inventor： Min Hyuk KIM , Meuleman ANDREAS , Hyeonjoong JANG
IPC: H04N13/128 , H04N13/243 , H04N13/293 , H04N13/15 , H04N13/111
Abstract: Provided is a real-time omnidirectional stereo matching method in a camera system including a first pair of fisheye cameras including first and second fisheye cameras provided to perform shooting in opposite directions and a second pair of fisheye cameras including third and fourth fisheye cameras provided to perform shooting in opposite directions and in which the first pair of fisheye cameras and the second pair of fisheye cameras are vertically provided, including receiving fisheye images of a subject captured through the first to the fourth fisheye cameras; selecting one fisheye camera from among fisheye cameras for each pixel of a preset reference fisheye image among the fisheye images using a sweep volume for preset distance candidates; generating a distance map for all pixels using the reference fisheye image and a fisheye image of the one fisheye camera; and performing real-time stereo matching on the fisheye images using the distance map.
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公开(公告)号：US20210358211A1
公开(公告)日：2021-11-18
申请号：US16622234
申请日：2019-10-07
Inventor： Min Hyuk KIM , Giljoo NAM
Abstract: Disclosed are herein a three-dimensional (3D) object acquisition method and an object acquisition apparatus using artificial light photographs. A 3D object acquisition method according to an embodiment of the present invention includes receiving a plurality of images of a 3D object photographed by a camera, reconstructing spatially-varying bidirectional reflectance distribution functions for the 3D object based on the plurality of images received, estimating shading normals for the 3D object based on the reconstructed spatially-varying bidirectional reflectance distribution functions, and acquiring 3D geometry for the 3D object based on the estimated shading normals.
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9.发明申请公开(公告)号：US20190096049A1
公开(公告)日：2019-03-28
申请号：US16127014
申请日：2018-09-10
Inventor： Min Hyuk KIM , Inchang CHOI
Abstract: A method and an apparatus for reconstructing a hyperspectral image using artificial intelligence are provided. The method includes receiving an encoded sensor input for an image and reconstructing a hyperspectral image of the image for the encoded sensor input based on a previously generated nonlinear learning model.
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公开(公告)号：US20250148706A1
公开(公告)日：2025-05-08
申请号：US18509771
申请日：2023-11-15
Inventor： Min Hyuk KIM , Hyeongjun CHO
Abstract: Disclosed is a three-dimensional (3D) calibration method and device for multi-view phase shift profilometry. A 3D calibration method for multi-view phase shift profilometry, performed by a computer device, according to an example embodiment may include acquiring a phase that is data required for 3D reconstruction from parameters of at least one camera and a projector based on a phase measuring profilometry (PMP) method; defining a phase-to-depth function for each camera-and-projector combination and performing calibration of optimizing the parameters of the camera and the projector; and acquiring a point cloud that includes depth information using the optimized parameters of the camera and the projector.
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