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公开(公告)号：US20240107032A1
公开(公告)日：2024-03-28
申请号：US18532554
申请日：2023-12-07
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University
Inventor： Hae Chul CHOI , Se Yoon JEONG , Sung-Chang LIM , Jin Soo CHOI , Jin Woo HONG , Dong Gyu SIM , Seoung-Jun OH , Chang-Beom AHN , Gwang Hoon PARK , Seung Ryong KOOK , Sea-Nae PARK , Kwang-Su JEONG
IPC: H04N19/159 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/625 , H04N19/70 , H04N19/91
CPC classification number: H04N19/159 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/625 , H04N19/70 , H04N19/91 , H04N19/172
Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
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22.发明申请公开(公告)号：US20220417507A1
公开(公告)日：2022-12-29
申请号：US17779093
申请日：2020-11-23
Applicant: Electronics and Telecommunications Research Institute , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seoung-Jun OH , Woong LIM , Gun BANG , Tae-Jin LEE , Dong-Gyu SIM , Jun-Taek PARK , Min-Hun LEE , Jong-Seok LEE
IPC: H04N19/117 , H04N19/80 , H04N19/105 , H04N19/176
Abstract: Disclosed herein are a video processing method, apparatus and storage medium using the resolution of a reference picture. Filtering is performed based on resolutions of reference pictures of blocks forming a boundary. The resolutions of the reference pictures may define filtering. Depending on whether the resolutions of the reference pictures are different from each other, one or more filter selection parameters for filtering may be determined or updated. Further, based on whether the resolutions of the reference pictures are different from each other, the boundary strength of the filter may be determined. Because filtering is defined using the resolutions of reference pictures, performance of encoding and/or decoding may be improved.
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23.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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24.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：US20210218972A1
公开(公告)日：2021-07-15
申请号：US17219964
申请日：2021-04-01
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 , H04N19/91 , 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.
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Patent Agency Ranking
公开(公告)号：US20190281305A1
公开(公告)日：2019-09-12
申请号：US16388382
申请日：2019-04-18
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hae Chul CHOI , Se Yoon JEONG , Sung-Chang LIM , Jin Soo CHOI , Jin Woo HONG , Dong Gyu SIM , Seoung-Jun OH , Chang-Beom AHN , Gwang Hoon PARK , Seung Ryong KOOK , Sea-Nae PARK , Kwang-Su JEONG
IPC: H04N19/159 , H04N19/615 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/51 , H04N19/117 , H04N19/105 , H04N19/587 , H04N19/70 , H04N19/61 , H04N19/593 , H04N19/132 , H04N19/11 , H04N19/625 , H04N19/91 , H04N19/50 , H04N19/44
Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
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27.发明申请公开(公告)号：US20180048916A1
公开(公告)日：2018-02-15
申请号：US15794568
申请日：2017-10-26
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.
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28.发明申请公开(公告)号：US20180041763A1
公开(公告)日：2018-02-08
申请号：US15784623
申请日：2017-10-16
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 , H04N19/103 , H04N19/11 , H04N19/61 , H04N19/129 , H04N19/176 , H04N19/182 , H04N19/91 , H04N19/18 , H04N19/136 , H04N19/13
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.
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公开(公告)号：US20140362916A1
公开(公告)日：2014-12-11
申请号：US14469340
申请日：2014-08-26
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hae Chul CHOI , Se Yoon JEONG , Sung-Chang LIM , Jin Soo CHOI , Jin Woo HONG , Dong Gyu SIM , Seoung-Jun OH , Chang-Beom AHN , Gwang Hoon PARK , Seung Ryong KOOK , Sea-Nae PARK , Kwang-Su JEONG
IPC: H04N19/593 , H04N19/44
CPC classification number: H04N19/159 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/625 , H04N19/70 , H04N19/91
Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
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公开(公告)号：US20140362915A1
公开(公告)日：2014-12-11
申请号：US14469309
申请日：2014-08-26
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hae Chul CHOI , Se Yoon JEONG , Sung-Chang LIM , Jin Soo CHOI , Jin Woo HONG , Dong Gyu SIM , Seoung-Jun OH , Chang-Beom AHN , Gwang Hoon PARK , Seung Ryong KOOK , Sea-Nae PARK , Kwang-Su JEONG
IPC: H04N19/593 , H04N19/44
CPC classification number: H04N19/159 , H04N19/105 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/43 , H04N19/44 , H04N19/50 , H04N19/51 , H04N19/587 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/625 , H04N19/70 , H04N19/91
Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
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