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11.发明申请公开(公告)号：US20220167000A1
公开(公告)日：2022-05-26
申请号：US17535926
申请日：2021-11-26
Inventor： Hyoung-Jin KWON , Ji-Hoon DO , Dong-Hyun KIM , Youn-Hee KIM , Jong-Ho KIM , Joo-Young LEE , Se-Yoon JEONG , Jin-Soo CHOI , Tae-Jin LEE , Jee-Hoon KIM , Dong-Gyu SIM , Seoung-Jun OH , Min-Hun LEE , Yun-Gu LEE , Han-Sol CHOI , Kwang-Hwan KIM
IPC: H04N19/503 , H04N19/11
Abstract: Disclosed herein are a method, apparatus, system, and computer-readable recording medium for image compression. An encoding apparatus performs preprocessing of feature map information, frame packing, frame classification, and encoding. A decoding apparatus performs decoding, frame depacking, and postprocessing in order to reconstruct feature map information. By encoding the feature map information, inter-prediction and intra-block prediction for a frame are performed. The encoding apparatus provides the decoding apparatus with a feature map information bitstream for reconstructing the feature map information along with an image information bitstream.
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12.发明申请公开(公告)号：US20220108490A1
公开(公告)日：2022-04-07
申请号：US17495619
申请日：2021-10-06
Inventor： Hyoung-Jin KWON , Ji-Hoon DO , Dong-Hyun KIM , Youn-Hee KIM , Joo-Young LEE , Se-Yoon JEONG , Jin-Soo CHOI , Tae-Jin LEE , Jee-Hoon KIM , Dong-Gyu SIM , Seoung-Jun OH , Min-Hun LEE , Yun-Gu LEE , Han-Sol CHOI , Kwang-Hwan KIM
Abstract: There are provided a method, apparatus, system, and computer-readable recording medium for image compression. An encoding apparatus performs domain transformation and quantization on feature map information and image information. The encoding apparatus rearranges the result of domain transformation and quantization so as to have a form advantageous to the encoding procedure and encodes the result of rearrangement, thereby generating a bitstream. A decoding apparatus receives the bitstream, decodes the received bitstream, and performs inverse transformation, dequantization, and inverse rearrangement using information transmitted through the bitstream. The result of inverse transformation, dequantization, and inverse rearrangement is used for the machine-learning task of a neural network.
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公开(公告)号：US20210136416A1
公开(公告)日：2021-05-06
申请号：US16768054
申请日：2018-11-27
Inventor： Youn-Hee KIM , Hui-Yong KIM , Seung-Hyun CHO , Jin-Wuk SEOK , Joo-Young LEE , Woong LIM , Jong-Ho KIM , Dae-Yeol LEE , Se-Yoon JEONG , Jin-Soo CHOI
IPC: H04N19/61 , H04N19/105 , H04N19/176 , G06N3/08
Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. A transformed block is generated by performing a first transformation that uses a prediction block for a target block. A reconstructed block for the target block is generated by performing a second transformation that uses the transformed block. The prediction block may be a block present in a reference image, or a reconstructed block present in a target image. The first transformation and the second transformation may be respectively performed by neural networks. Since each transformation is automatically performed by the corresponding neural network, information required for a transformation may be excluded from a bitstream.
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公开(公告)号：US20210084290A1
公开(公告)日：2021-03-18
申请号：US16772443
申请日：2018-12-13
Inventor： Seung-Hyun CHO , Joo-Young LEE , Youn-Hee KIM , Jin-Wuk SEOK , Woong LIM , Jong-Ho KIM , Dae-Yeol LEE , Se-Yoon JEONG , Hui-Yong KIM , Jin-Soo CHOI
IPC: H04N19/105 , H04N19/176 , H04N19/159 , H04N19/85
Abstract: Disclosed herein are a method and apparatus for video decoding and a method and apparatus for video encoding. A prediction block for a target block is generated by predicting the target block using a prediction network, and a reconstructed block for the target block is generated based on the prediction block and a reconstructed residual block. The prediction network includes an intra-prediction network and an inter-prediction network and uses a spatial reference block and/or a temporal reference block when it performs prediction. For learning in the prediction network, a loss function is defined, and learning in the prediction network is performed based on the loss function.
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15.发明申请公开(公告)号：US20190306526A1
公开(公告)日：2019-10-03
申请号：US16374601
申请日：2019-04-03
Inventor： Seung-Hyun CHO , Je-Won KANG , Na-Young KIM , Jung-Kyung LEE , Joo-Young LEE , Hyunsuk KO , Youn-Hee KIM , Jong-Ho KIM , Jin-Wuk SEOK , Dae-Yeol LEE , Woong LIM , Se-Yoon JEONG , Hui-Yong KIM , Jin-Soo CHOI
IPC: H04N19/513 , H04N19/105 , H04N19/132 , G06N20/00
Abstract: Disclosed herein are an inter-prediction method and apparatus using a reference frame generated based on deep learning. In the inter-prediction method and apparatus, a reference frame is selected, and a virtual reference frame is generated based on the selected reference frame. A reference picture list is configured to include the generated virtual reference frame, and inter prediction for a target block is performed based on the virtual reference frame. The virtual reference frame may be generated based on a deep-learning network architecture, and may be generated based on video interpolation and/or video extrapolation that use the selected reference frame.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20170195675A1
公开(公告)日：2017-07-06
申请号：US15015456
申请日：2016-02-04
Inventor： Jin-Wuk SEOK , Myung-Seok KI , Youn-Hee KIM , Hui-Yong KIM , Jin-Soo CHOI
IPC: H04N19/147 , H04N19/124 , H04N19/176 , H04N19/15 , H04N19/13 , H04N19/43 , H04N19/159 , H04N19/117 , H04N19/103 , H04N19/61
CPC classification number: H04N19/147 , H04N19/103 , H04N19/15 , H04N19/176
Abstract: Disclosed herein are an apparatus and method for performing rate-distortion optimization based on cost. The encoding apparatus selects an encoding mode to be used to encode a target block from among multiple modes and performs computation for rate-distortion optimization in the encoding mode. The encoding apparatus calculates a cost of at least one of the multiple modes in relation to the encoding of the target block, and selects the encoding mode from among the multiple modes, based on the cost.
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17.发明公开公开(公告)号：US20240078710A1
公开(公告)日：2024-03-07
申请号：US18460354
申请日：2023-09-01
Inventor： Youn-Hee KIM , Jooyoung LEE , Se-Yoon JEONG , Jin-Soo CHOI , Dong-Gyu SIM , Na-Seong KWON , Seung-Jin PARK , Min-Hun LEE , Han-Sol CHOI
Abstract: Disclosed herein are a method, an apparatus and a storage medium for encoding/decoding using a transform-based feature map. An optimal basis vector is extracted from one or more feature maps, and a transform coefficient is acquired through a transform using the basis vector. The basis vector and the transform coefficient may be transmitted through a bitstream. In an embodiment, one or more feature maps are reconstructed using the basis vector and the transform coefficient, which are decoded from the bitstream.
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18.发明公开公开(公告)号：US20240013449A1
公开(公告)日：2024-01-11
申请号：US18473944
申请日：2023-09-25
Inventor： Joo-Young LEE , Se-Yoon JEONG , Hyoung-Jin KWON , Dong-Hyun KIM , Youn-Hee KIM , Jong-Ho KIM , Tae-Jin LEE , Jin-Soo CHOI
IPC: G06T9/00 , G06T3/40 , G06V10/764 , G06V10/82 , G06V10/44
CPC classification number: G06T9/002 , G06T3/4046 , G06V10/764 , G06V10/82 , G06V10/454
Abstract: An encoding apparatus extracts features of an image by applying multiple padding operations and multiple downscaling operations to an image represented by data and transmits feature information indicating the features to a decoding apparatus. The multiple padding operations and the multiple downscaling operations are applied to the image in an order in which one padding operation is applied and thereafter one downscaling operation corresponding to the padding operation is applied. A decoding method receives feature information from an encoding apparatus, and generates a reconstructed image by applying multiple upscaling operations and multiple trimming operations to an image represented by the feature information. The multiple upscaling operations and the multiple trimming operations are applied to the image in an order in which one upscaling operation is applied and thereafter one trimming operation corresponding to the upscaling operation is applied.
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19.发明公开公开(公告)号：US20230281960A1
公开(公告)日：2023-09-07
申请号：US18112403
申请日：2023-02-21
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Youn-Hee KIM , Se-Yoon JEONG , Ji-Hoon DO , Joo-Young LEE , Hyoung-Jin KWON , Dong-Hyun KIM , Jong-Ho KIM , Sung-Chang LIM , Woong LIM , Jin-Soo CHOI , Tae-Jin LEE , Hui-Yong KIM , Chang-Kyun CHOI , Jung-Heum KANG , Sung-Ho BAE , Hye-Won JEONG
IPC: G06V10/771 , G06T3/40 , G06T9/00 , G06V10/28 , G06V10/82
CPC classification number: G06V10/771 , G06T3/4053 , G06T9/00 , G06V10/28 , G06V10/82
Abstract: Disclosed herein is an encoding method. The encoding method includes extracting a feature map from an input image, determining an encoding feature map based on the extracted feature map, generating a converted feature map by performing conversion on the encoding feature map, and performing encoding on the converted feature map.
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公开(公告)号：US20230070216A1
公开(公告)日：2023-03-09
申请号：US17896958
申请日：2022-08-26
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Ji-Hoon DO , Hyoung-Jin KWON , Dong-Hyun KIM , Youn-Hee KIM , Jong-Ho KIM , Joo-Young LEE , Woong LIM , Se-Yoon JEONG , Jin-Soo CHOI , Tae-Jin LEE , Seong-Bae RHEE , Kyu-Heon KIM , Jun-Sik KIM
Abstract: Disclosed herein are a method, an apparatus and a storage medium for processing a feature map. An encoding method for a feature map includes configuring a feature frame for feature maps, and generating encoded information by performing encoding on the feature frame. A decoding method for a feature map includes reconstructing a feature frame by performing decoding on encoded information, and reconstructing feature maps using the feature frame. A feature frame is configured using feature maps, and compression using a video compression codec or a deep learning-based image compression method is applied to the feature frame.
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