公开(公告)号：US11412175B2

公开(公告)日：2022-08-09

申请号：US16961688

申请日：2018-12-12

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Mun Churl Kim ,  Yong Woo Kim ,  Jae Seok Choi

IPC: G06K9/00 ,  H04N7/01 ,  H04N19/124 ,  G06N3/08 ,  G06T3/40 ,  G06T1/20 ,  G06V10/46 ,  G06N3/04

Abstract: An image processing method and apparatus using a line unit operation is disclosed. The image processing apparatus includes a receiver configured to receive an image, at least one first line buffer configured to output the received image to be an image line of a line unit, a first convolution operator configured to generate a feature map by performing a convolution operation based on the output image line, and a feature map processor configured to store the generated feature map as at least one line unit and process the feature map stored as the line unit to be output in a two-dimensional (2D) or higher dimensional form.

公开(公告)号：US11076175B2

公开(公告)日：2021-07-27

申请号：US16572704

申请日：2019-09-17

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREAN BROADCASTING SYSTEM

Inventor： Mun Churl Kim ,  Bum Shik Lee ,  Jae Il Kim ,  Chang Seob Park ,  Sang Jin Hahm ,  In Joon Cho ,  Keun Sik Lee ,  Byung Sun Kim

IPC: H04N19/86 ,  H04N19/103 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/80 ,  H04N19/172 ,  H04N19/174 ,  H04N19/182

Abstract: Disclosed are a method of encoding a division block in video encoding and a method of decoding a division block in video decoding. An input picture is divided into encoding unit blocks. The encoding unit blocks are divided into sub-blocks. The sub-blocks are encoded by selectively using at least one of intra prediction encoding and inter prediction encoding. A decoding process is performed through a reverse process of the encoding method. When pixel values of an encoding unit block are encoded in video encoding, the flexibility in selecting an encoding mode is increased and the efficiency of encoding is increased.

公开(公告)号：US09961344B2

公开(公告)日：2018-05-01

申请号：US15219487

申请日：2016-07-26

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation ,  University-Industry Cooperation Group of Kyung Hee University ,  Korea Advanced Institute of Science and Technology

Inventor： Sung-Chang Lim ,  Ha Hyun Lee ,  Hui Yong Kim ,  Se Yoon Jeong ,  Suk Hee Cho ,  Hae Chul Choi ,  Jong Ho Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woo Hong ,  Dong Hyu Sim ,  Seoung Jun Oh ,  Gwang Hoon Park ,  Mun Churl Kim ,  Neung Joo Hwang ,  Sea Nae Park

IPC: H04N19/122 ,  H04N19/159 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/124 ,  H04N19/625 ,  H04N19/50 ,  H04N19/60 ,  H04N19/12 ,  H04N19/18 ,  H04N19/182 ,  H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/139 ,  H04N19/44 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/615 ,  H04N19/91

CPC classification number: H04N19/122 ,  H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/44 ,  H04N19/50 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/60 ,  H04N19/615 ,  H04N19/625 ,  H04N19/91

Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.

公开(公告)号：US09888259B2

公开(公告)日：2018-02-06

申请号：US15258655

申请日：2016-09-07

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREAN BROADCASTING SYSTEM

Inventor： Mun Churl Kim ,  Bum Shik Lee ,  Jae Il Kim ,  Chang Seob Park ,  Sang Jin Hahm ,  In Joon Cho ,  Keun Sik Lee ,  Byung Sun Kim

IPC: H04N19/103 ,  H04N19/61 ,  H04N19/122 ,  H04N19/13 ,  H04N19/124 ,  H04N19/159 ,  H04N19/80 ,  H04N19/86 ,  H04N19/176 ,  H04N19/14 ,  H04N19/117 ,  H04N19/172 ,  H04N19/174 ,  H04N19/182

CPC classification number: H04N19/86 ,  H04N19/103 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/182 ,  H04N19/61 ,  H04N19/80

Abstract: Disclosed are a method of encoding a division block in video encoding and a method of decoding a division block in video decoding. An input picture is divided into encoding unit blocks. The encoding unit blocks are divided into sub-blocks. The sub-blocks are encoded by selectively using at least one of intra prediction encoding and inter prediction encoding. A decoding process is performed through a reverse process of the encoding method. When pixel values of an encoding unit block are encoded in video encoding, the flexibility in selecting an encoding mode is increased and the efficiency of encoding is increased.

公开(公告)号：US12198298B2

公开(公告)日：2025-01-14

申请号：US17623270

申请日：2020-07-03

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Mun Churl Kim ,  Se Hwan Ki

IPC: G06T5/00 ,  G06T3/4046 ,  G06T3/4053 ,  G06T7/11

Abstract: Disclosed are a video processing method and a device therefor. The video processing method may include receiving a video comprising a plurality of temporal portions, receiving a first model parameter corresponding to a first neural network to process the video entirely, receiving residues between the first model parameter and a plurality of second model parameters corresponding to a plurality of second neural networks to process the plurality of temporal portions, and performing at least one of super-resolution, reverse or inverse tone mapping, tone mapping, frame interpolation, motion deblurring, denoising, and compression artifact removal on the video based on the residues.

公开(公告)号：US12010302B2

公开(公告)日：2024-06-11

申请号：US18088615

申请日：2022-12-26

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Mun Churl Kim

IPC: H04N11/02 ,  G06F17/15 ,  G06N3/04 ,  H04N19/117 ,  H04N19/124 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/117 ,  G06F17/15 ,  G06N3/04 ,  H04N19/124 ,  H04N19/176 ,  H04N19/82

Abstract: Disclosed according to one exemplary embodiment includes not limited to: a filtering unit configured to generate filtering information by filtering a residual image corresponding to a difference between an original image and a prediction image; an inverse filtering unit configured to generate inverse filtering information by inversely filtering the filtering information; an estimator configured to generate the prediction image based on the original image and reconstruction information; a CNN-based in-loop filter configured to receive the inverse filtering information and the prediction image and to output the reconstruction information; and an encoder configured to perform encoding based on the filtering information and information of the prediction image, and wherein the CNN-based in-loop filter is trained for each of the plurality of artefact sections according to an artefact value or for each of the plurality of quantization parameter sections according to a quantization parameter.

公开(公告)号：US11956569B2

公开(公告)日：2024-04-09

申请号：US18088646

申请日：2022-12-26

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Mun Churl Kim ,  Yong Woo Kim ,  Jae Seok Choi

IPC: H04N7/01 ,  G06T1/20 ,  G06T3/40 ,  G06T3/4007 ,  G06T3/4046 ,  G06T3/4053 ,  H04N19/124

CPC classification number: H04N7/0117 ,  G06T1/20 ,  G06T3/4007 ,  G06T3/4046 ,  G06T3/4053 ,  H04N19/124

Abstract: Disclosed are an image processing method and device using a line-wise operation. The image processing device, according to one embodiment, comprises: a receiver for receiving an image; at least one first line buffer for outputting the image into a line-wise image line; a first convolution operator for generating a feature map by performing a convolution operation on the basis of the output from the first line buffer; and a feature map processor for storing the output from the first convolution operator in units of at least one line, and processing so as to output the feature map stored in units of at least one line into a two-dimensional form, wherein at least one convolution operation operates in the form of a pipeline.

公开(公告)号：US11659210B2

公开(公告)日：2023-05-23

申请号：US17361528

申请日：2021-06-29

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREAN BROADCASTING SYSTEM

Inventor： Mun Churl Kim ,  Bum Shik Lee ,  Jae II Kim ,  Chang Seob Park ,  Sang Jin Hahm ,  In Joon Cho ,  Keun Sik Lee ,  Byung Sun Kim

IPC: H04N19/13 ,  H04N19/14 ,  H04N19/61 ,  H04N19/80 ,  H04N19/86 ,  H04N19/176 ,  H04N19/122 ,  H04N19/103 ,  H04N19/124 ,  H04N19/159 ,  H04N19/117 ,  H04N19/172 ,  H04N19/174 ,  H04N19/182

CPC classification number: H04N19/86 ,  H04N19/103 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/80 ,  H04N19/172 ,  H04N19/174 ,  H04N19/182

Abstract: Disclosed are a method of encoding a division block in video encoding and a method of decoding a division block in video decoding. An input picture is divided into encoding unit blocks. The encoding unit blocks are divided into sub-blocks. The sub-blocks are encoded by selectively using at least one of intra prediction encoding and inter prediction encoding. A decoding process is performed through a reverse process of the encoding method. When pixel values of an encoding unit block are encoded in video encoding, the flexibility in selecting an encoding mode is increased and the efficiency of encoding is increased.

公开(公告)号：US10664961B2

公开(公告)日：2020-05-26

申请号：US15633763

申请日：2017-06-27

Applicant: SILICON WORKS CO., LTD. ,  Korea Advanced Institute of Science and Technology

Inventor： Yong Woo Kim ,  Sang Yeon Kim ,  Woo Suk Ha ,  Mun Churl Kim ,  Dae Eun Kim

IPC: G06K9/00 ,  G06K9/40 ,  G06T5/00 ,  G06T7/90 ,  G06T5/10 ,  G06T5/20

Abstract: The present invention provides a technology that separates a low-contrast-ratio image into sublayer images, classifies each sublayer image into several categories in accordance with the characteristics of each sublayer image, and learns a transformation matrix representing a relationship between the low-contrast-ratio image and a high-contrast-ratio image for each category. In addition, the present invention provides a technology that separates an input low-contrast-ratio image into sublayer images, selects a category corresponding to each sublayer image, and applies a learned transformation matrix to generate a high.

公开(公告)号：US10110912B2

公开(公告)日：2018-10-23

申请号：US15824155

申请日：2017-11-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Ho Kim ,  Hui Yong Kim ,  Se Yoon Jeong ,  Sung Chang Lim ,  Ha Hyun Lee ,  Jin Ho Lee ,  Suk Hee Cho ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn ,  Mun Churl Kim ,  Bum Shik Lee

IPC: H04N19/18 ,  H04N19/44 ,  H04N19/70 ,  H04N19/46 ,  H04N19/60 ,  H04N19/593 ,  H04N19/64

Abstract: Disclosed decoding method of the intra prediction mode comprises the steps of: determining whether an intra prediction mode of a present prediction unit is the same as a first candidate intra prediction mode or as a second candidate intra prediction mode on the basis of 1-bit information; and determining, among said first candidate intra prediction mode and said second candidate intra prediction mode, which candidate intra prediction mode is the same as the intra prediction mode of said present prediction unit on the basis of additional 1-bit information, if the intra prediction mode of the present prediction unit is the same as at least either the first candidate intra prediction mode or the second candidate intra prediction mode, and decoding the intra prediction mode of the present prediction unit.