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公开(公告)号：US10484687B2
公开(公告)日：2019-11-19
申请号：US15870230
申请日：2018-01-12
Inventor： Soon Heung Jung , Myung Seok Ki , Hui Yong Kim , Joo Young Lee , Se Yoon Jeong , Jin Soo Choi
IPC: H04N19/132 , H04N19/91 , H04N19/172 , H04N19/59 , H04N19/137 , H04N19/154 , H04N19/587
Abstract: Disclosed is a method and apparatus for encoding/decoding an image. The image encoding apparatus according to an embodiment of the present disclosure may include: an encoding level decision unit determining an encoding level of an input image; a sampling unit outputting an encoding target picture associated with the encoding level determined in the encoding level decision unit; an encoding unit encoding the encoding target picture output from the sampling unit; a reference picture storage unit storing at least one reference picture; and a reconstructed image generation unit generating a reconstructed image corresponding to the input image in association with the encoding level determined in the encoding level decision unit.
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公开(公告)号：US10425653B2
公开(公告)日：2019-09-24
申请号：US15011090
申请日：2016-01-29
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/44 , H04N19/50 , H04N19/503 , H04N19/52 , H04N19/597
Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US10212422B2
公开(公告)日：2019-02-19
申请号：US15801423
申请日：2017-11-02
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/00 , H04N19/124 , H04N19/196 , H04N19/463 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/14 , H04N19/33
Abstract: The present invention relates to a video encoding method and apparatus for setting and encoding quantization parameters, and to a video decoding method and apparatus for decoding and setting quantization parameters in a video encoding and decoding apparatus which uses blocks having various sizes and depths as encoding and decoding units.
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公开(公告)号：US20180376138A1
公开(公告)日：2018-12-27
申请号：US16117948
申请日：2018-08-30
Inventor： Ha Hyun Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Jin Ho Lee , Se Yoon Jeong , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N19/107 , H04N19/91 , H04N19/593 , H04N19/52 , H04N19/105 , H04N19/513 , H04N19/137 , H04N19/70 , H04N19/109 , H04N19/50 , H04N19/169 , H04N19/157 , H04N19/11 , H04N19/61 , H04N19/13 , H04N19/196 , H04N19/176 , H04N19/159
CPC classification number: H04N19/107 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/13 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/1887 , H04N19/196 , H04N19/50 , H04N19/52 , H04N19/521 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: Disclosed herein is an intra prediction method including: deriving neighbor prediction mode information from a left neighbor prediction mode and an upper neighbor prediction mode; deriving an intra prediction mode for a decoding target unit by using the derived neighbor prediction mode information; and performing intra prediction on the decoding target unit based on the intra prediction mode. According to exemplary embodiments of the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US20180288417A1
公开(公告)日：2018-10-04
申请号：US15870230
申请日：2018-01-12
Inventor： Soon Heung Jung , Myung Seok Ki , Hui Yong Kim , Joo Young Lee , Se Yoon Jeong , Jin Soo Choi
IPC: H04N19/132 , H04N19/59 , H04N19/172 , H04N19/91
Abstract: Disclosed is a method and apparatus for encoding/decoding an image. The image encoding apparatus according to an embodiment of the present disclosure may include: an encoding level decision unit determining an encoding level of an input image; a sampling unit outputting an encoding target picture associated with the encoding level determined in the encoding level decision unit; an encoding unit encoding the encoding target picture output from the sampling unit; a reference picture storage unit storing at least one reference picture; and a reconstructed image generation unit generating a reconstructed image corresponding to the input image in association with the encoding level determined in the encoding level decision unit.
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Patent Agency Ranking
公开(公告)号：US09648327B2
公开(公告)日：2017-05-09
申请号：US15055150
申请日：2016-02-26
Inventor： Ha Hyun Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Jin Ho Lee , Se Yoon Jeong , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn
IPC: H04N7/12 , G06K9/46 , H04N19/11 , H04N19/593 , H04N19/176 , H04N19/196 , H04N19/13 , H04N19/157 , H04N19/169 , H04N19/50 , H04N19/137 , H04N19/513 , H04N19/70 , H04N19/61
CPC classification number: H04N19/107 , H04N19/105 , H04N19/109 , H04N19/11 , H04N19/13 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/1887 , H04N19/196 , H04N19/50 , H04N19/52 , H04N19/521 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/91
Abstract: An intra prediction method according to the present invention comprises the following steps: deriving neighboring prediction mode information from a left neighboring prediction mode and a top neighboring prediction mode; deriving an intra prediction mode for a target unit to be decoded, using the derived neighboring prediction mode information; and performing intra prediction for the target unit to be decoded, based on the intra prediction mode. According to the present invention, video encoding/decoding efficiency may be improved.
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公开(公告)号：US09407937B2
公开(公告)日：2016-08-02
申请号：US14469288
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: G06K9/36 , H04N19/91 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/593 , H04N19/11 , H04N19/132 , H04N19/587 , H04N19/124 , H04N19/44 , H04N19/625
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：US20160173909A1
公开(公告)日：2016-06-16
申请号：US15049854
申请日：2016-02-22
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 Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Mun Churl KIM , Neung Joo HWANG , Sea Nae PARK
IPC: H04N19/625 , H04N19/55 , H04N19/615 , H04N19/14 , H04N19/176 , H04N19/124 , H04N19/13 , H04N19/122 , H04N19/11 , H04N19/44 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/52 , H04N19/593 , H04N19/91 , H04N19/18 , H04N19/119
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.
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公开(公告)号：US09369737B2
公开(公告)日：2016-06-14
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: G06K9/36 , H04N19/91 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/593 , H04N19/11 , H04N19/132 , H04N19/587 , H04N19/124 , H04N19/44 , H04N19/625
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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70.发明授权公开(公告)号：US08923396B2
公开(公告)日：2014-12-30
申请号：US14159953
申请日：2014-01-21
Inventor： Se Yoon Jeong , Jin Soo Choi , Donghyung Kim , Won-Sik Cheong , Kyung Ae Moon , Jin Woo Hong
IPC: H04N7/12 , H04N19/176 , H04N19/182 , H04N19/136 , H04N19/51 , H04N19/593 , H04N19/61 , H04N19/583 , H04N19/11
CPC classification number: H04N19/50 , H04N19/11 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/513 , H04N19/593 , H04N19/61
Abstract: An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information.
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