公开(公告)号：US20230319271A1

公开(公告)日：2023-10-05

申请号：US18017386

申请日：2021-07-20

Applicant: Electronics and Telecommunications Research Institute ,  KWANGWOON UNIVERSITY INDUSTRY- ACADEMIC COLLABORATION FOUNDATION

Inventor： Woong LIM ,  Gun BANG ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Jun-Taek PARK ,  Min-Hun LEE

IPC: H04N19/119 ,  H04N19/96 ,  H04N19/60 ,  H04N19/176

CPC classification number: H04N19/119 ,  H04N19/96 ,  H04N19/60 ,  H04N19/176

Abstract: Disclosed herein are a method, an apparatus, and a storage medium for image encoding/decoding using geometric partitioning. Partitioning of a block may be determined using directionality in a block. A straight line is detected in the block, some of partitioning methods available for the block are excluded depending on the type of the detected straight line, and only the remaining partitioning methods are limited to a target of selection for encoding and/or decoding on the target block. Further, the mode of a geometric partitioning mode may be determined using directionality in the block. A straight line is detected in the block, some of available modes of a geometric partitioning mode are excluded depending on the type of the detected straight line, and the remaining modes are limited to the target of selection for encoding and/or decoding on the target block.

公开(公告)号：US20220092827A1

公开(公告)日：2022-03-24

申请号：US17482067

申请日：2021-09-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ji-Hoon DO ,  Hyoung-Jin KWON ,  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 ,  G06N3/02

Abstract: There are provided an apparatus, method, system, and recording medium for performing selective encoding/decoding on feature information. An encoding apparatus generates residual feature information. The encoding apparatus transmits the residual feature information to a decoding apparatus through a residual feature map bitstream. The residual feature information is the difference between feature information extracted from an original image and feature information extracted from a reconstructed image. Feature information of the reconstructed image is generated using the reconstructed image. Reconstructed feature information is generated using the feature information of the reconstructed image and reconstructed residual feature information.

公开(公告)号：US20210218973A1

公开(公告)日：2021-07-15

申请号：US17219985

申请日：2021-04-01

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institue for Industry Cooperation ,  Industy-Academia Cooperation Group of Sejong University

Inventor： Se-Yoon JEONG ,  Hae-Chul CHOI ,  Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Jae-Gon KIM ,  Kyung-Ae MOON ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Yung-Lyul LEE ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Chang-Beom AHN ,  Dae-Yeon KIM ,  Dong-Kyun KIM

IPC: H04N19/159 ,  H04N19/91 ,  H04N19/182 ,  H04N19/13 ,  H04N19/18 ,  H04N19/176 ,  H04N19/129 ,  H04N19/61 ,  H04N19/11 ,  H04N19/103 ,  H04N19/136

Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

公开(公告)号：US20240078710A1

公开(公告)日：2024-03-07

申请号：US18460354

申请日：2023-09-01

Applicant: Electronics and Telecommunications Research Institute

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

IPC: G06T9/00 ,  G06T3/40

CPC classification number: G06T9/00 ,  G06T3/40

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.

公开(公告)号：US20210392376A1

公开(公告)日：2021-12-16

申请号：US17446091

申请日：2021-08-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong-Il SEO ,  Wook-Joong KIM ,  Kyu-Heon KIM ,  Kyeong-Ok KANG ,  Jin-Woo HONG ,  Yung-Lyul LEE ,  Ki-Hun HAN ,  Jae-Ho HUR ,  Dong-Gyu SIM ,  Seoung-Jun OH

IPC: H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US20190110078A1

公开(公告)日：2019-04-11

申请号：US16216551

申请日：2018-12-11

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation ,  Industry Academy Cooperation Foundation of Sejong University

Inventor： Jeong-Il SEO ,  Wook-Joong KIM ,  Kyu-Heon KIM ,  Kyeong-Ok KANG ,  Jin-Woo HONG ,  Yung-Lyul LEE ,  Ki-Hun HAN ,  Jae-Ho HUR ,  Dong-Gyu SIM ,  Seoung-Jun OH

IPC: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US20250030893A1

公开(公告)日：2025-01-23

申请号：US18906808

申请日：2024-10-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong-Il SEO ,  Wook-Joong KIM ,  Kyu-Heon KIM ,  Kyeong-Ok KANG ,  Jin-Woo HONG ,  Yung-Lyul LEE ,  Ki-Hun HAN ,  Jae-Ho HUR ,  Dong-Gyu SIM ,  Seoung-Jun OH

IPC: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US20230336781A1

公开(公告)日：2023-10-19

申请号：US18340381

申请日：2023-06-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong-Il SEO ,  Wook-Joong KIM ,  Kyu-Heon KIM ,  Kyeong-Ok KANG ,  Jin-Woo HONG ,  Yung-Lyul LEE ,  Ki-Hun HAN ,  Jae-Ho HUR ,  Dong-Gyu SIM ,  Seoung-Jun OH

IPC: H04N19/61 ,  H04N19/159 ,  H04N19/129 ,  H04N19/176

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US20190297331A1

公开(公告)日：2019-09-26

申请号：US16438785

申请日：2019-06-12

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation ,  Industry-Academia Cooperation Group of Sejong University

Inventor： Se-Yoon JEONG ,  Hae-Chul CHOI ,  Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Jae-Gon KIM ,  Kyung-Ae MOON ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Yung-Lyul LEE ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Chang-Beom AHN ,  Dae-Yeon KIM ,  Dong-Kyun KIM

IPC: H04N19/159 ,  H04N19/136 ,  H04N19/103 ,  H04N19/11 ,  H04N19/61 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/91 ,  H04N19/18 ,  H04N19/129

Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

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.