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公开(公告)号：US10511836B2
公开(公告)日：2019-12-17
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: H04N19/91 , H04N19/107 , H04N19/593 , H04N19/176 , H04N19/196 , H04N19/13 , H04N19/61 , H04N19/11 , H04N19/157 , H04N19/169 , H04N19/50 , H04N19/137 , H04N19/513 , H04N19/70 , H04N19/105 , H04N19/109 , H04N19/159 , H04N19/52
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：US20190230379A1
公开(公告)日：2019-07-25
申请号：US16374685
申请日：2019-04-03
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jong Ho Kim , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/593
CPC classification number: H04N19/593
Abstract: The multi sample prediction method of the present invention comprises the steps of: determining a sample group consisting of a plurality of samples inside a decoding target block; determining a representative position corresponding to the sample group, inside the decoding target block; determining a representative prediction value for the sample group, on the basis of the determined representative position; and determining the determined representative prediction value as the final prediction value for each of the plurality of samples making up the sample group. The present invention enhances efficiency in encoding/decoding and reduces complexity thereof.
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公开(公告)号：US20190149837A1
公开(公告)日：2019-05-16
申请号：US16249146
申请日：2019-01-16
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Suk Hee Cho , Dong San Jun , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/513 , H04N19/426 , H04N19/61 , H04N19/44
Abstract: The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof. An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock. According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
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公开(公告)号：US10205952B2
公开(公告)日：2019-02-12
申请号：US15694569
申请日：2017-09-01
Inventor： Sung Chang Lim , Se Yoon Jeong , Jong Ho Kim , Hui Yong Kim , Dae Yeol Lee , Suk Hee Cho , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/186 , H04N19/176 , H04N19/61 , H04N19/159
Abstract: The present invention provides an image encoding apparatus carrying out inter-color prediction, comprising a residual block acquisition module obtaining a residual block with respect to a first color component and a residual block with respect to a second color component from a difference between an input block and a prediction block; an inter-color component prediction module carrying out inter-color component prediction by generating a residual signal reflecting a difference between a residual block with respect to the first color component and a residual block with respect to the second color component; a transform module generating a transformat coefficient by carrying out transformation with respect to the residual signal; a quantization module generating quantized data by carrying out quantization with respect to the transform coefficient; and an entropy encoding module carrying out entropy encoding by removing statistical redundancy of the quantized data.
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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.
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Patent Agency Ranking
公开(公告)号：US09838691B2
公开(公告)日：2017-12-05
申请号：US15489290
申请日：2017-04-17
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 , H04N19/463 , H04N19/196 , H04N19/119 , H04N19/14 , H04N19/70 , H04N19/176
CPC classification number: H04N19/124 , H04N19/119 , H04N19/14 , H04N19/176 , H04N19/196 , H04N19/33 , H04N19/463 , H04N19/70
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：US09811882B2
公开(公告)日：2017-11-07
申请号：US14860972
申请日：2015-09-22
Inventor： Dae Yeol Lee , Se Yoon Jeong , Suk Hee Cho , Jong Ho Kim , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi
CPC classification number: G06T3/4053 , H04N7/0117
Abstract: A method of processing a super resolution image using adaptive preprocessing filtering and/or postprocessing filtering is provided. A provided image processing apparatus may determine a preprocessing filter and a postprocessing filter based on frames included in a reference interval among a plurality of intervals in an input video, may perform filtering on the frames in the reference interval based on the preprocessing filter, may reconstruct a high frequency signal of each of the frames on which the filtering is performed, and may perform filtering on the frames, each having the reconstructed high frequency signal, based on the postprocessing filter.
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98.发明授权公开(公告)号：US09749632B2
公开(公告)日：2017-08-29
申请号：US15338484
申请日：2016-10-31
Inventor： Sung Chang Lim , Hui Yong Kim , Se Yoon Jeong , Jong Ho Kim , Ha Hyun Lee , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/124 , H04N19/186 , H04N19/463 , H04N19/157 , H04N19/122 , H04N19/46 , H04N19/105 , H04N19/117 , H04N19/13 , H04N19/15 , H04N19/159 , H04N19/43 , H04N19/61 , H04N19/174 , H04N19/176
CPC classification number: H04N19/124 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/13 , H04N19/15 , H04N19/157 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/43 , H04N19/46 , H04N19/463 , H04N19/61
Abstract: Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.
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公开(公告)号：US09743082B2
公开(公告)日：2017-08-22
申请号：US14643785
申请日：2015-03-10
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University
Inventor： Sung Chang Lim , Ha Hyun Lee , Se Yoon Jeong , Hui Yong Kim , Suk Hee Cho , Jong Ho Kim , Jin Ho Lee , Jin Soo Choi , Jin Woong Kim , Chie Teuk Ahn , Dong Gyu Sim , Seoung Jun Oh , Gwang Hoon Park , Sea Nae Park , Chan Woong Jeon
IPC: H04N19/117 , H04N19/46 , H04N19/593 , H04N19/132 , H04N19/17 , H04N19/50 , H04N19/109 , H04N19/159 , H04N19/174 , H04N19/192 , H04N19/82
CPC classification number: H04N19/117 , H04N19/109 , H04N19/132 , H04N19/159 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/192 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/82
Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.
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公开(公告)号：US09270972B2
公开(公告)日：2016-02-23
申请号：US13717492
申请日：2012-12-17
Inventor： Suk Hee Cho , Jong Ho Kim , Se Yoon Jeong , Hyon Gon Choo , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/12 , H04N13/00 , H04N21/236 , H04N21/2365 , H04N21/2368 , H04N21/242 , H04N21/81
CPC classification number: H04N13/167 , H04N21/23608 , H04N21/2365 , H04N21/2368 , H04N21/242 , H04N21/816
Abstract: A method for 3DTV multiplexing according to the present invention comprises, deriving a delay value in units of frames for the left and right image based on a left image PES (Packetized Elementary Stream) corresponding to a left image and a right image PES corresponding to a right image, carrying out synchronization of the left image PES and the right image PES based on the delay value in units of frames, and generating 3DTV transport streams (TSs) by carrying out multiplexing of the synchronized left image PES and the synchronized right image PES. According to the present invention, efficiency of video services can be improved.
Abstract translation: 根据本发明的3DTV复用方法包括：基于对应于左图像和对应于左图像的左图像和右图像PES的左图像PES（分组化基本流），为左和右图像以帧为单位导出延迟值 基于延迟值以帧为单位执行左图像PES和右图像PES的同步，并且通过执行同步的左图像PES和同步的右图像PES的多路复用来生成3DTV传输流（TS） 。 根据本发明，可以提高视频业务的效率。
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