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公开(公告)号：US20230222626A1
公开(公告)日：2023-07-13
申请号：US18095420
申请日：2023-01-10
Applicant: Electronics and Telecommunications Research Institute , HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Soon-Heung JUNG , Sang Woon KWAK , Joung-Il Yun , Hae-Chul CHOI , Hee-Ji HAN
IPC: G06T3/40
CPC classification number: G06T3/4046 , G06T3/4007
Abstract: A neural network feature decoding method and apparatus according to the present disclosure receives a bitstream including an encoded feature, decodes a feature from a bitstream, and reconstructs features corresponding to a plurality of layers of a neural network based on a decoded feature.
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公开(公告)号：US20220005152A1
公开(公告)日：2022-01-06
申请号：US17350904
申请日：2021-06-17
Inventor： Joung Il YUN , Sang Woon KWAK
Abstract: A video decoding method comprises warping different viewpoint images into a virtual viewpoint by using depth information of an input viewpoint; determining a first weight for the pixels based on quality and depth of pixels of the warped viewpoint images; determining a second weight for the pixels based on a location relation between the pixels of the warped viewpoint images and the virtual viewpoint; determining a blending weight for the pixels based on the first weight and the second weight; blending the warped viewpoint images according to the blending weight; and synthesizing an image of the virtual viewpoint based on the blended viewpoint images.
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公开(公告)号：US20240127487A1
公开(公告)日：2024-04-18
申请号：US18484566
申请日：2023-10-11
Applicant: Electronics and Telecommunications Research Institute , Konkuk University Industrial Cooperation Corp
Inventor： Han Shin LIM , Sang Woon KWAK , Hyon Gon CHOO , Kyoung Ro YOON , Shin KIM , Ye Gi LEE
Abstract: An image encoding/decoding method, device and recording medium based sed on multiple compression levels disclosure may include extracting a region of interest for machine vision from an input image, determining a compression level of the region of interest, and encoding the compression level of the region of interest.
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4.发明申请公开(公告)号：US20190089943A1
公开(公告)日：2019-03-21
申请号：US16135275
申请日：2018-09-19
Inventor： Joung Il YUN , Sang Woon KWAK , Kug Jin YUN , Jin Hwan LEE , Won Sik CHEONG
IPC: H04N13/117 , G06T7/593 , G02B27/01 , H04N19/597 , H04N13/332
CPC classification number: H04N13/117 , G02B27/017 , G02B2027/0134 , G06T7/593 , H04N13/332 , H04N19/39 , H04N19/597 , H04N2013/0081
Abstract: Disclosed is a method and apparatus for providing an omni-directional stereoscopic image based on layer projection. According to an embodiment of the present disclosure, there is provided a method of providing an omni-directional stereoscopic image based on layer projection, the method including: obtaining a spatial-information-point set; and generating a layer image based on a spatial-information-point subset constructed for each of multiple layers, the layer image corresponding to each of the multiple layers, wherein the spatial-information-point subset constructed for each of two consecutive layers includes one or more duplicate spatial information points.
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公开(公告)号：US20240169484A1
公开(公告)日：2024-05-23
申请号：US18514150
申请日：2023-11-20
Inventor： Sang Woon KWAK , Han Shin LIM , Hyon Gon CHOO
CPC classification number: G06T3/4053 , G06T5/002 , G06T5/50 , G06T7/0002 , G06T7/11 , G06V10/771 , G06T2207/20221 , G06T2207/30168
Abstract: A non-uniform super-resolution method, device, and recording medium of an image of the present disclosure may include an image separation unit which separates an input image into a high-quality region and a low-quality region based on a quality map image, an image quality conversion unit which acquires a converted high-quality region by converting image quality of the high-quality region, and a first image combination unit which combines the converted high-quality region and the low-quality region to transmit them to a super-resolution network.
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Patent Agency Ranking
公开(公告)号：US20230319248A1
公开(公告)日：2023-10-05
申请号：US18192471
申请日：2023-03-29
Inventor： Gwang Soon LEE , Sang Woon KWAK , Hong Chang SHIN
IPC: H04N13/117 , H04N13/194 , H04N19/597
CPC classification number: H04N13/117 , H04N13/194 , H04N19/597
Abstract: A method of switching an atlas according to a watching position according to the present disclosure includes acquiring information on a view image required to reproduce a viewport image; acquiring information of a first atlas mapped to the view image; and receiving a bitstream of the first atlas and a bitstream of a second atlas different from the first atlas. In this case, when it is determined that atlas switching is necessary, reception of any one of a bitstream of the first atlas and a bitstream of the second atlas may be stopped and a bitstream of a third atlas may be newly received.
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7.发明申请公开(公告)号：US20210289187A1
公开(公告)日：2021-09-16
申请号：US17199177
申请日：2021-03-11
Inventor： Sang Woon KWAK , Joung Il YUN , Young Ju JEONG
IPC: H04N13/111
Abstract: The present disclosure provides an apparatus and a method for selecting camera providing input images to synthesize virtual view images. According to the present disclosure, A method of selecting a camera providing an input image to synthesize a virtual view image, the method may comprise, for a camera providing an input image, determining whether or not the camera is comprised in a field of view (FoV) at a virtual view position and in response to the camera determined to be comprised in the field of view, selecting the camera to synthesize the virtual image, wherein the determining determines, by way of comparison, whether or not a direction from the virtual view position to a position of the camera is in the FoV at the virtual view position.
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公开(公告)号：US20240129465A1
公开(公告)日：2024-04-18
申请号：US18483923
申请日：2023-10-10
Applicant: Electronics and Telecommunications Research Institute , Konkuk University Industrial Cooperation Corp
Inventor： Hyon Gon CHOO , Sang Woon KWAK , Han Shin LIM , Kyoung Ro YOON , Shin KIM , Ye Gi LEE
IPC: H04N19/119 , H04N19/124 , H04N19/172 , H04N19/184
CPC classification number: H04N19/119 , H04N19/124 , H04N19/172 , H04N19/184
Abstract: An object-based image encoding/decoding method and device of the present disclosure may include an image partition step which partitions an image to obtain a first object region, a region scaling step which scales the first object region based on a scaling factor of the first object region to obtain a second objection region, a region merging step which merges the second object region with at least one of an object region different from the second object region or a non-object region to obtain a merged image, and an image reconstruction step which reconstructs the merged image.
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公开(公告)号：US20240121415A1
公开(公告)日：2024-04-11
申请号：US18377404
申请日：2023-10-06
Inventor： Hyon Gon CHOO , Han Shin LIM , Sang Woon KWAK
Abstract: An image encoding method includes detecting at least one attention region from an original image, acquiring a reconstructed picture for the original image, generating residual data between a first attention region in the original image and a second attention region corresponding to the first attention region in the reconstructed picture, and encoding the residual data.
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公开(公告)号：US20210006830A1
公开(公告)日：2021-01-07
申请号：US16823617
申请日：2020-03-19
Inventor： Kug Jin YUN , Jun Young JEONG , Gwang Soon LEE , Hong Chang SHIN , Ho Min EUM , Sang Woon KWAK
IPC: H04N19/597 , H04N19/176 , H04N19/167 , H04N13/178 , H04N13/161
Abstract: Disclosed herein is an immersive video processing method. The immersive video processing method may include classifying a multiplicity of source view videos into base view videos and additional view videos, generating residual data for the additional view videos, packing a patch, which is generated based on the residual data, into an altas video, and generating metadata for the patch.
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