公开(公告)号：US20220201295A1

公开(公告)日：2022-06-23

申请号：US17557819

申请日：2021-12-21

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20220094977A1

公开(公告)日：2022-03-24

申请号：US17479811

申请日：2021-09-20

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20200175668A1

公开(公告)日：2020-06-04

申请号：US16697585

申请日：2019-11-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

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

IPC: G06T7/00 ,  G06T7/13 ,  H04N17/00

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.

公开(公告)号：US20200162736A1

公开(公告)日：2020-05-21

申请号：US16684041

申请日：2019-11-14

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20190082178A1

公开(公告)日：2019-03-14

申请号：US16084995

申请日：2017-03-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Youn-Hee KIM ,  Jin-Wuk SEOK ,  Hui-Yong KIM ,  Myung-Seok KI ,  Sung-Chang LIM ,  Jin-Soo CHOI

IPC: H04N19/119 ,  H04N19/114 ,  H04N19/174 ,  H04N19/136

Abstract: Disclosed herein are a method and apparatus for video encoding and decoding using picture partition information. Each of the pictures in a video is partitioned into tiles or slices based on picture partition information. Each picture is partitioned using one of at least two different methods based on the picture partition information. The picture partition information may indicate two or more picture partitioning methods. The picture partitioning methods may be changed either periodically or according to a specific rule. The picture partition information may describe such a periodic change or the specified rule.

公开(公告)号：US20230342980A1

公开(公告)日：2023-10-26

申请号：US18305172

申请日：2023-04-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Youn-Hee KIM ,  Joo-Young LEE ,  Se-Yoon JEONG ,  Jin-Soo CHOI ,  Dong-Gyu SIM ,  Na-Seong KWON ,  Seung-Jin PARK ,  Min-Hun LEE ,  Han-Sol CHOI

IPC: G06T9/00 ,  G06T3/40 ,  G06V10/24 ,  G06V10/771

CPC classification number: G06T9/00 ,  G06T3/4007 ,  G06V10/24 ,  G06V10/771

Abstract: Disclosed herein are a method, an apparatus, and a storage medium for encoding/decoding a multi-resolution feature map. In an aspect, there is provided an encoding method, including extracting feature maps from an input image, performing packing on the extracted feature maps, and performing encoding on the packed feature maps, wherein the feature maps include multiple feature maps having different resolutions. In another aspect, there is provided a decoding method, including generating packed feature maps by decoding an input bitstream, and generating a multi-resolution feature map by performing unpacking on the packed feature maps, wherein the multi-resolution feature map includes multiple feature maps having different resolutions.

公开(公告)号：US20230336780A1

公开(公告)日：2023-10-19

申请号：US18302719

申请日：2023-04-18

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Joo-Young LEE ,  Youn-Hee KIM ,  Se-Yoon JEONG ,  Jin-Soo CHOI ,  Dong-Ha KIM ,  Jae-Gon KIM ,  Yong-Uk YOON

IPC: H04N19/597 ,  H04N19/30

CPC classification number: H04N19/597 ,  H04N19/30

Abstract: Disclosed herein are a method, an apparatus, and a storage medium for encoding/decoding a feature map for machine vision. In an embodiment, an encoding method includes generating a multi-channel feature map by aligning multiple feature maps, generating a converted feature map by performing conversion on the multi-channel feature map and performing encoding on the converted feature map.

公开(公告)号：US20220167000A1

公开(公告)日：2022-05-26

申请号：US17535926

申请日：2021-11-26

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US20220108490A1

公开(公告)日：2022-04-07

申请号：US17495619

申请日：2021-10-06

Applicant: Electronics and Telecommunications Research Institute

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

IPC: G06T9/00 ,  G06T3/40 ,  G06K9/46 ,  G06N3/04

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.

公开(公告)号：US20210136416A1

公开(公告)日：2021-05-06

申请号：US16768054

申请日：2018-11-27

Applicant: Electronics and Telecommunications Research Institute

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.