Patents by Inventor Jae Won Sung
Jae Won Sung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170280157Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method using a DC mode includes setting a bottom-right pixel to a DC-predicted value, interpolating the bottom-right pixel and an n-th top reference pixel to derive predicted values of an n-th column and interpolating the bottom-right pixel and an n-th left reference pixel to derive predicted values of an n-row, and performing bidirectional linear interpolation to derive predicted values of pixels included in a prediction unit other than the n-th row and the n-th column.Type: ApplicationFiled: June 14, 2017Publication date: September 28, 2017Inventors: Yong Joon JEON, Seung Wook PARK, Jae Hyun LIM, Jung Sun KIM, Joon Young PARK, Young Hee CHOI, Jae Won SUNG, Byeong Moon JEON
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Patent number: 9756358Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.Type: GrantFiled: January 27, 2016Date of Patent: September 5, 2017Assignee: LG Electronics Inc.Inventors: Jae Won Sung, Seung Wook Park, Yong Joon Jeon, Jung Sun Kim, Young Hee Choi, Byeong Moon Jeon, Joon Young Park
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Patent number: 9693054Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method using a DC mode includes setting a bottom-right pixel to a DC-predicted value, interpolating the bottom-right pixel and an n-th top reference pixel to derive predicted values of an n-th column and interpolating the bottom-right pixel and an n-th left reference pixel to derive predicted values of an n-row, and performing bidirectional linear interpolation to derive predicted values of pixels included in a prediction unit other than the n-th row and the n-th column.Type: GrantFiled: December 21, 2011Date of Patent: June 27, 2017Assignee: LG Electronics Inc.Inventors: Yong Joon Jeon, Seung Wook Park, Jae Hyun Lim, Jung Sun Kim, Joon Young Park, Young Hee Choi, Jae Won Sung, Byeong Moon Jeon
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Publication number: 20170171561Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.Type: ApplicationFiled: February 24, 2017Publication date: June 15, 2017Inventors: Jae Won SUNG, Seung Wook PARK, Yong Joon JEON, Jung Sun KIM, Young Hee CHOI, Byeong Moon JEON, Joon Young PARK
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Patent number: 9635368Abstract: The present invention relates to a method for decoding a video signal, comprising the steps of: acquiring a transform size flag of the current macroblock from a video signal; checking the number of non-zero transform coefficients at each pixel position in a first transform block which corresponds to the transform size flag; changing a scan order of the first transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients in the first transform block; determining the number of the non-zero transform coefficients at each pixel position in a second transform block, and setting the changed scan order of the first transform block as an initialized scan order of the second transform block; adding the number of the non-zero transform coefficients at each pixel position in the first transform block and the number of the non-zero transform coefficients at each pixel position in the second transform block, and changing the scan order of the second transform blType: GrantFiled: May 13, 2015Date of Patent: April 25, 2017Assignee: LG ELECTRONICS INC.Inventors: Jung Sun Kim, Seung Wook Park, Young Hee Choi, Jae Won Sung, Byeong Moon Jeon, Joon Young Park
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Publication number: 20170105025Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.Type: ApplicationFiled: December 23, 2016Publication date: April 13, 2017Inventors: Yong Joon JEON, Seung Wook Park, Jae Hyun Lim, Jung Sun KIM, Joon Young PARK, Young Hee CHOI, Jae Won SUNG, Byeong Moon Jeon
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Patent number: 9544593Abstract: According to the present invention, when the block merge flag of the current prediction block specifies that the motion information of the current prediction block is acquired using block merging, the motion information of the current prediction block is acquired from the motion information of the neighboring block, a reference block of a reference picture is acquired using the motion information of the current prediction block, the prediction value of the current prediction block is acquired using the reference block, and the current prediction block is restored using the residual of the current prediction block and the prediction value of the current prediction block.Type: GrantFiled: December 15, 2010Date of Patent: January 10, 2017Assignee: LG Electronics Inc.Inventors: Seung Wook Park, Jae Hyun Lim, Jung Sun Kim, Joon Young Park, Young Hee Choi, Jae Won Sung, Byeong Moon Jeon, Yong Joon Jeon
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Patent number: 9530224Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.Type: GrantFiled: March 6, 2012Date of Patent: December 27, 2016Assignee: LG Electronics Inc.Inventors: Yong Joon Jeon, Seung Wook Park, Jae Hyun Lim, Jung Sun Kim, Joon Young Park, Young Hee Choi, Jae Won Sung, Byeong Moon Jeon
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Publication number: 20160212445Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.Type: ApplicationFiled: January 27, 2016Publication date: July 21, 2016Inventors: Jae Won SUNG, Seung Wook PARK, Yong Joon JEON, Jung Sun KIM, Young Hee CHOI, Byeong Moon JEON, Joon Young PARK
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Patent number: 9277244Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.Type: GrantFiled: May 7, 2009Date of Patent: March 1, 2016Assignee: LG Electronics Inc.Inventors: Jae Won Sung, Seung Wook Park, Yong Joon Jeon, Jung Sun Kim, Young Hee Choi, Byeong Moon Jeon, Joon Young Park
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Patent number: 9196059Abstract: A boundary intra coding flag is obtained according to a current macroblock type. When the boundary intra coding flag indicates that the current macroblock is coded in an intra prediction mode using boundary intra coding, boundary coding information is obtained, and a boundary in the current macroblock is induced based on the boundary coding information. Therefore, the regions divided by the boundary can be coded in the intra prediction mode. The accuracy of a predicted pixel value can be improved by performing the intra prediction for regions divided by the boundary. Accordingly, the residual data transmitted to a decoder can be reduced.Type: GrantFiled: January 6, 2010Date of Patent: November 24, 2015Assignee: LG Electronics Inc.Inventors: Yong Joon Jeon, Jae Won Sung, Byeong Moon Jeon
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Publication number: 20150249840Abstract: The present invention relates to a method for decoding a video signal, comprising the steps of: acquiring a transform size flag of the current macroblock from a video signal; checking the number of non-zero transform coefficients at each pixel position in a first transform block which corresponds to the transform size flag; changing a scan order of the first transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients in the first transform block; determining the number of the non-zero transform coefficients at each pixel position in a second transform block, and setting the changed scan order of the first transform block as an initialized scan order of the second transform block; adding the number of the non-zero transform coefficients at each pixel position in the first transform block and the number of the non-zero transform coefficients at each pixel position in the second transform block, and changing the scan order of the second transform blType: ApplicationFiled: May 13, 2015Publication date: September 3, 2015Inventors: Jung Sun KIM, Seung Wook PARK, Young Hee CHOI, Jae Won SUNG, Byeong Moon JEON, Joon Young PARK
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Patent number: 9113196Abstract: A method and apparatus for processing a video signal using inter-viewpoint prediction are disclosed. The video signal processing method includes acquiring a type of a current block, acquiring a depth inter-view prediction flag according to the current block type, acquiring color information of a reference block corresponding to the current block when the current block is encoded using depth inter-view prediction according to the depth inter-view prediction flag, and predicting color information of the current block using the color information of the reference block. The video signal processing method performs inter-viewpoint prediction using depth information, such that a motion vector of a macroblock can be induced from a decoder using such depth information. Therefore, a motion vector of the macroblock is not separately coded. In addition, the video signal processing method uses a flag that indicates whether to perform inter-viewpoint prediction using depth information.Type: GrantFiled: November 10, 2009Date of Patent: August 18, 2015Assignee: LG Electronics Inc.Inventors: Jae Won Sung, Byeong Moon Jeon, Yong Joon Jeon
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Patent number: 9100648Abstract: The present invention relates to a method for decoding a video signal, comprising: obtaining adaptive transform size flag information for a 1st coding unit, the adaptive transform size flag information indicating whether a coding unit is partitioned in to coding units each of which has a half size in horizontal and vertical directions; obtaining adaptive transform size flag information for each 2nd coding unit, if the adaptive transform size flag information of a 1st coding unit is true, the 2nd coding unit indicating a sub-block included in the 1st coding unit; determining a size of a transform unit based on the adaptive transform size flag information; wherein the adaptive transform size flag information is obtained based on a size of a current transform unit, a minimum transform size, and a maximum transform size.Type: GrantFiled: June 7, 2010Date of Patent: August 4, 2015Assignee: LG Electronics Inc.Inventors: Jung Sun Kim, Seung Wook Park, Young Hee Choi, Jae Won Sung, Byeong Moon Jeon, Joon Young Park
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Publication number: 20150036749Abstract: An apparatus for processing a video signal and method thereof are disclosed. The present invention includes receiving prediction mode information, interpolating information and a residual of a current block, reconstructing an interpolating pixel using the interpolating information and a neighbor block, and reconstructing the current block using the interpolating pixel, the prediction mode information and the residual, wherein the interpolating information is generated based on a location of the current block. According to an apparatus and method for processing a video signal, high reconstruction rate can be obtained by improving the related art method having limited intra prediction modes available for a current block located on a boundary area of a picture in encoding in a manner of reconstructing and using an interpolating pixel based on interpolating information.Type: ApplicationFiled: October 20, 2014Publication date: February 5, 2015Inventors: Byeong Moon JEON, Seung Wook PARK, Joon Young PARK, Jae Won SUNG, Hyun Wook PARK, Jee Hong LEE, Jin Young LEE, Dong San JUN, Yinji PIAO
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Patent number: 8913657Abstract: The virtual view image synthesis method according to the present invention comprises: generating an intermediate picture from a first viewpoint and an intermediate picture from a second viewpoint by swapping a reference picture from a first viewpoint and a reference picture from a second viewpoint; determining whether there is a hole in said intermediate picture from a first viewpoint; if there is a hole in said intermediate picture from a first viewpoint, obtaining the pixel value of said intermediate picture from a second viewpoint based on the location of said hole; and allocating the pixel value of said intermediate picture from a second viewpoint to said hole. A virtual picture is synthesized using a reference picture, thereby reducing the quantity of information due to encoding a virtual viewpoint picture.Type: GrantFiled: October 27, 2009Date of Patent: December 16, 2014Assignee: LG Electronics Inc.Inventors: Jae Won Sung, Yong Joon Jeon, Byeong Moon Jeon, Jae Hyun Lim
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Patent number: 8867607Abstract: The present invention includes determining a motion vector candidate set of a current block including a plurality of motion vector candidates, obtaining motion vector indication information of the current block from a video signal, extracting a motion vector candidate corresponding to the motion vector indication information from the motion vector candidate set, determining a predicted motion vector of the current block based on the extracted motion vector candidate, and performing motion compensation on the current block based on the predicted motion vector.Type: GrantFiled: June 10, 2013Date of Patent: October 21, 2014Assignees: LG Electronics Inc., Korea Advanced Institute of Science and TechnologyInventors: Byeong Moon Jeon, Seung Wook Park, Joon Young Park, Jae Won Sung, Hyun Wook Park, Jee Hong Lee, Jin Young Lee, Dong San Jun, Yinji Piao
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Patent number: 8761242Abstract: The present invention includes determining a motion vector candidate set of a current block, obtaining motion vector indication information of a current block from a video signal, extracting a motion vector candidate corresponding to a motion vector indication information from a motion vector candidate set, determining a predicted motion vector of a current block based on the extracted motion vector candidate, and performing motion compensation on a current block based on a predicted motion vector.Type: GrantFiled: June 10, 2013Date of Patent: June 24, 2014Assignees: LG Electronics Inc., Korea Advanced Institute of Science and TechnologyInventors: Byeong Moon Jeon, Seung Wook Park, Joon Young Park, Jae Won Sung, Hyun Wook Park, Jee Hong Lee, Jin Young Lee, Dong San Jun, Yinji Piao
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Patent number: 8760495Abstract: In a method for processing video signals acquired from multiple cameras, the present invention provides a method for processing video signals including receiving a multiview video coded bit stream including color pictures and depth pictures, wherein the depth picture indicates a group of digitalized information on a distance between a base camera and an object; acquiring data type identification information from the multiview video coded bit stream, wherein the data type identification information indicates whether or not depth-coded data are included in the multiview video coded bit stream; acquiring reference information between views of the depth picture based upon the data type identification information, wherein the reference information between views of the depth picture includes a number of depth-view reference pictures, and a view identification number of the depth-view reference picture; acquiring an estimation value of the depth picture by using the reference information between views of the depth pType: GrantFiled: November 18, 2009Date of Patent: June 24, 2014Assignee: LG Electronics Inc.Inventors: Yong Joon Jeon, Jae Won Sung, Byeong Moon Jeon, Jae Hyun Lim
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Patent number: 8750369Abstract: The present invention includes determining a motion vector candidate set of a current block, obtaining motion vector indication information of a current block from a video signal, extracting the motion vector candidate corresponding to the motion vector indication information from the motion vector candidate set, determining a predicted motion vector of the current block based on the extracted motion vector candidate, deriving a motion vector of the current block based on the predicted motion vector and a motion vector difference of the current block, and performing motion compensation on the current block based on the derived motion vector.Type: GrantFiled: June 10, 2013Date of Patent: June 10, 2014Assignees: LG Electronics Inc., Korea Advanced Institute of Science and TechnologyInventors: Byeong Moon Jeon, Seung Wook Park, Joon Young Park, Jae Won Sung, Hyun Wook Park, Jee Hong Lee, Jin Young Lee, Dong San Jun, Yinji Piao