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公开(公告)号：US20240095963A1
公开(公告)日：2024-03-21
申请号：US18463051
申请日：2023-09-07
Inventor： Jooyoung LEE , Se-Yoon JEONG , Youn-Hee KIM , Jin-Soo CHOI
Abstract: Disclosed herein are a method, apparatus, and storage medium for image encoding/decoding. Selective compression learning of latent representations for variable-rate image compression is used for the method, apparatus, and storage medium. A selective compression method that partially encodes latent representations in a completely generalized manner for deep-learning-based variable-rate image compression is disclosed in embodiments. The methods of the embodiments adaptively determine essential representation elements for compression at different target quality levels.
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12.发明申请公开(公告)号：US20230052774A1
公开(公告)日：2023-02-16
申请号：US17782568
申请日：2020-12-07
Inventor： Youn-Hee KIM , Seung-Hyun CHO , Hyunsuk KO , Hyoung-Jin KWON , Dong-Hyun KIM , Jong-Ho KIM , Joo-Young LEE , Se-Yoon JEONG , Tae-Jin LEE , Jin-Soo CHOI
IPC: H04N19/30 , H04N19/119 , H04N19/17 , H04N19/147 , H04N19/14 , H04N19/42
Abstract: Disclosed herein are a video-decoding method and apparatus and a video encoding method and apparatus, and more particularly a method and an apparatus which perform region-differential image encoding/decoding using a recovered image. In accordance with an encoding method according to an embodiment, a recovered low-quality image is generated by performing encoding on an original image and a recovered high-quality image is generated using the recovered low-quality image. An image is segmented into multiple regions, and encoded reconstruction information for generating a reconstructed high-quality image is generated by performing encoding on the image.
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公开(公告)号：US20220201295A1
公开(公告)日：2022-06-23
申请号：US17557819
申请日：2021-12-21
Inventor： Youn-Hee KIM , Dong-Hyun KIM , Ji-Hoon DO , Se-Yoon JEONG , Hyoung-Jin KWON , Jong-Ho KIM , Joo-Young LEE , Jin-Soo CHOI , Tae-Jin LEE
IPC: H04N19/119 , H04N19/14 , H04N19/105 , H04N19/176 , G06N3/04
Abstract: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using prediction. Multiple candidate prediction images are derived, and a final prediction image is generated using the multiple prediction images. The multiple candidate prediction images may be respectively generated using different methods. The multiple candidate prediction images may be generated using neural networks. Here, the multiple candidate prediction images may be respectively derived using different values for a specific coding parameter. Multiple neural networks may use different values for the specific coding parameter. Various coding parameters related to image encoding and/or decoding may be used for embodiments.
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公开(公告)号：US20220094977A1
公开(公告)日：2022-03-24
申请号：US17479811
申请日：2021-09-20
Inventor： Dong-Hyun KIM , Ji-Hoon DO , Youn-Hee KIM , Se-Yoon JEONG , Hyoung-Jin KWON , Jong-Ho KIM , Joo-Young LEE , Jin-Soo CHOI , Tae-Jin LEE
IPC: H04N19/593 , H04N19/11 , H04N19/176 , H04N19/436 , H04N19/136 , H04N19/184 , G06N3/04
Abstract: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding. An intra-prediction mode for the target block is derived, and intra-prediction for the target block that uses the derived intra-prediction mode is performed. The intra-prediction mode for the target block is derived using an artificial neural network, and an MPM list for the target block is derived using information about the target block, pieces of information about blocks adjacent to the target block, and the artificial neural network. The artificial neural network outputs one or more available intra-prediction modes. Further, the artificial neural network outputs match probabilities for one or more candidate intra-prediction modes, and each of the match probabilities for the candidate intra-prediction modes indicates a probability that the corresponding candidate intra-prediction mode matches the intra-prediction mode for the target block.
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15.发明申请公开(公告)号：US20200175668A1
公开(公告)日：2020-06-04
申请号：US16697585
申请日：2019-11-27
Inventor： Se-Yoon JEONG , Dae-Yeol LEE , Seung-Hyun CHO , Hyunsuk KO , Youn-Hee KIM , Jong-Ho KIM , Jin-Wuk SEOK , Joo-Young LEE , Woong LIM , Hui-Yong KIM , Jin-Soo CHOI
Abstract: Disclosed herein are a method and apparatus for measuring video quality based on a perceptually sensitive region. The quality of video may be measured based on a perceptually sensitive region and a change in the perceptually sensitive region. The perceptually sensitive region includes a spatial perceptually sensitive region, a temporal perceptually sensitive region, and a spatio-temporal perceptually sensitive region. Perceptual weights are applied to a detected perceptually sensitive region and a change in the detected perceptually sensitive region. Distortion is calculated based on the perceptually sensitive region and the change in the perceptually sensitive region, and a result of quality measurement for a video is generated based on the calculated distortion.
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Patent Agency Ranking
公开(公告)号：US20200162736A1
公开(公告)日：2020-05-21
申请号：US16684041
申请日：2019-11-14
Inventor： Jin-Wuk SEOK , Hyunsuk KO , Youn-Hee KIM , Jong-Ho KIM , Joo-Young LEE , Woong LIM , Se-Yoon JEONG , Seung-Hyun CHO , Hui-Yong KIM , Jin-Soo CHOI
IPC: H04N19/124 , H04N19/18 , H04N19/184
Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In image encoding, encoding using multiple quantization parameters is performed on a transform coefficient. Two quantized coefficients are generated through encoding that uses two quantization parameters. Based on the two quantized coefficients, a quantized coefficient difference is generated. Information about the quantized coefficient difference is transmitted from an encoding apparatus to a decoding apparatus through binary encoding. The information about the quantized coefficient difference may be selectively transmitted. By means of the information about the quantized coefficient difference, a high-quality video may be provided.
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公开(公告)号：US20170104993A1
公开(公告)日：2017-04-13
申请号：US15287345
申请日：2016-10-06
Inventor： Se-Yoon JEONG , Hui-Yong KIM , Jong-Ho KIM , Sung-Chang LIM , Shanglin Yang , C.-C. Jay Kuo , Qin Huang
IPC: H04N19/109 , H04N19/114 , H04N19/31 , H04N19/177
CPC classification number: H04N19/31 , H04N19/132 , H04N19/136 , H04N19/154 , H04N19/172
Abstract: Disclosed herein are a method and apparatus that adaptively perform encoding and decoding based on image quality. An encoding apparatus may determine optimal Frames Per Second (FPS) for a video and may encode the video based on the determined FPS. Further, the encoding apparatus may provide improved temporal scalability. A decoding apparatus may select a frame to be displayed from among frames of a video depending on a required minimum satisfied user ratio. Through the selection of the frame, the decoding apparatus may provide improved temporal scalability.
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18.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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19.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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20.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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