Patents by Inventor Chan-yul Park
Chan-yul Park 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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Patent number: 11973934Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.Type: GrantFiled: March 16, 2022Date of Patent: April 30, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-Ho Choi, Min-woo Park, Elena Alshina, Chan-yul Kim, In-kwon Choi
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Patent number: 11973935Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.Type: GrantFiled: March 16, 2022Date of Patent: April 30, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-ho Choi, Min-woo Park, Elena Alshina, Chan-yul Kim, In-kwon Choi
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Patent number: 11962791Abstract: Provided are an inter prediction method and a motion compensation method. The inter prediction method includes: performing inter prediction on a current image by using a long-term reference image stored in a decoded picture buffer; determining residual data and a motion vector of the current image generated via the inter prediction; and determining least significant bit (LSB) information as a long-term reference index indicating the long-term reference image by dividing picture order count (POC) information of the long-term reference image into most significant bit (MSB) information and the LSB information.Type: GrantFiled: November 19, 2021Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Young-o Park, Il-koo Kim, Chan-yul Kim, Kwang-pyo Choi
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Patent number: 11962752Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.Type: GrantFiled: July 27, 2020Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-ho Choi, Min-woo Park, Elena Alshina, Chan-yul Kim, In-kwon Choi
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Patent number: 11956422Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.Type: GrantFiled: March 16, 2022Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-ho Choi, Min-woo Park, Elena Alshina, Chan-yul Kim, In-kwon Choi
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Patent number: 11956419Abstract: Provided is a method of decoding a video according to an embodiment, the method including determining at least one processing block for splitting the video; determining an order of determining at least one largest coding unit in the at least one processing block; determining at least one largest coding unit on the basis of the determined order; and decoding the determined at least one largest coding unit, wherein the order is one of a plurality of orders for determining a largest coding unit.Type: GrantFiled: July 27, 2020Date of Patent: April 9, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-Ho Choi, Min-woo Park, Elena Alshina, Chan-yul Kim, In-kwon Choi
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Patent number: 11924425Abstract: Provided are a method and apparatus for encoding or decoding a coding unit on an outline of a picture. An image decoding method and apparatus according to an embodiment determine whether a current coding unit extends across an outline of a picture, by comparing a location of the current coding unit in the picture to at least one of a width and a height of the picture, split the current coding unit in at least one direction into a plurality of coding units based on a shape of the current coding unit upon determining that the current coding unit extends across the outline of the picture, obtain block shape information and split type information of the current coding unit from a bitstream and split the current coding unit into a plurality of coding units based on the block shape information and the split type information upon determining that the current coding unit does not extend across the outline of the picture, and decode a coding unit that is no longer split among the plurality of coding units.Type: GrantFiled: August 5, 2022Date of Patent: March 5, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Min-woo Park, Bo-ra Jin, Chan-yul Kim, Jung-hye Min
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Patent number: 10823958Abstract: A control method of an electronic device, an electronic device, and a control method of an electronic device that performs encoding are provided. The control method of the electronic device includes obtaining a video, determining a part corresponding to a user gaze on a first frame in the first frame of the video, determining a decoding-target part, which includes the part corresponding to the user gaze on the first frame and has a size greater than or equal to the part corresponding to the user gaze on the first frame, decoding the decoding-target part, and displaying an image of the part corresponding to the user gaze on the first frame among the decoding-target part.Type: GrantFiled: August 3, 2017Date of Patent: November 3, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Chan-Yul Park, Han-Sang Kim, Bong-Soo Jung
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Patent number: 10666940Abstract: Provided are a method and apparatus for performing combination prediction by obtaining a weight for intra prediction and inter prediction by taking into account at least one of a distance between a reference picture and a current picture, a size of a current block, and characteristics of the inter prediction and intra prediction.Type: GrantFiled: November 6, 2015Date of Patent: May 26, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chan-yul Park, Jung-hye Min
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Patent number: 10469102Abstract: According to an embodiment of the present disclosure, an electronic device may comprise a memory and a processor configured to produce compressed data by compressing data including a first block and a second block stored in the memory, wherein the processor may be configured to include a first replacement data table corresponding to first sub-data in the compressed data, the first sub-data included in the first block, and the first replacement data table produced based on, at least, rankings of first frequencies for the first sub-data, and include information for reference to the first replacement data table, corresponding to the second block, when second sub-data included in the second block and rankings of second frequencies for the second sub-data meet a designated condition with respect to the first sub-data included in the first block and the rankings of the first frequencies. Other embodiments are also possible.Type: GrantFiled: May 15, 2018Date of Patent: November 5, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Chan-Sik Park, Chan-Yul Park, Yong-Chul Kim
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Publication number: 20180337690Abstract: According to an embodiment of the present disclosure, an electronic device may comprise a memory and a processor configured to produce compressed data by compressing data including a first block and a second block stored in the memory, wherein the processor may be configured to include a first replacement data table corresponding to first sub-data in the compressed data, the first sub-data included in the first block, and the first replacement data table produced based on, at least, rankings of first frequencies for the first sub-data, and include information for reference to the first replacement data table, corresponding to the second block, when second sub-data included in the second block and rankings of second frequencies for the second sub-data meet a designated condition with respect to the first sub-data included in the first block and the rankings of the first frequencies. Other embodiments are also possible.Type: ApplicationFiled: May 15, 2018Publication date: November 22, 2018Inventors: Chan-Sik PARK, Chan-Yul PARK, Yong-Chul KIM
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Publication number: 20180288410Abstract: Provided are a method and apparatus for performing combination prediction by obtaining a weight for intra prediction and inter prediction by taking into account at least one of a distance between a reference picture and a current picture, a size of a current block, and characteristics of the inter prediction and intra prediction.Type: ApplicationFiled: November 6, 2015Publication date: October 4, 2018Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chan-yul PARK, Jung-hye MIN
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Patent number: 10091501Abstract: Provided is a video decoding method including: determining a size of a block on which intra block copy prediction is to be performed, based on block size information obtained from a bitstream; comparing the determined size of the block with a size of a current block, and determining, based on a result of the comparing, whether the size of the current block falls within the determined size of the block; and performing intra block copy prediction on the current block when it is determined that the size of the current block falls within the determined size of the block.Type: GrantFiled: April 12, 2016Date of Patent: October 2, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sun-il Lee, Chan-yul Park, Elena Alshina
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Publication number: 20180081171Abstract: A control method of an electronic device, an electronic device, and a control method of an electronic device that performs encoding are provided. The control method of the electronic device includes obtaining a video, determining a part corresponding to a user gaze on a first frame in the first frame of the video, determining a decoding-target part, which includes the part corresponding to the user gaze on the first frame and has a size greater than or equal to the part corresponding to the user gaze on the first frame, decoding the decoding-target part, and displaying an image of the part corresponding to the user gaze on the first frame among the decoding-target part.Type: ApplicationFiled: August 3, 2017Publication date: March 22, 2018Inventors: Chan-Yul PARK, Han-Sang KIM, Bong-Soo JUNG
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Publication number: 20160255344Abstract: Provided is a video decoding method including: determining a size of a block on which intra block copy prediction is to be performed, based on block size information obtained from a bitstream; comparing the determined size of the block with a size of a current block, and determining, based on a result of the comparing, whether the size of the current block falls within the determined size of the block; and performing intra block copy prediction on the current block when it is determined that the size of the current block falls within the determined size of the block.Type: ApplicationFiled: April 12, 2016Publication date: September 1, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sun-il LEE, Chan-yul PARK, Elena ALSHINA
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Patent number: 8059716Abstract: An apparatus for and a method of transcoding data in a first format, for example, MPEG (moving picture experts group)-2 data into data in a second format, for example, H.264 data. The apparatus may include a scaling dequantization unit, a coefficient transform unit, and/or a scaling quantization unit. The scaling dequantization unit may dequantize the data in the first format (e.g., MPEG-2 data) to generate a DCT (discrete cosine transform) coefficient. The coefficient transform unit may approximate a 4x4 second data format (e.g., H.264) integer transform matrix to a 4x4 DCT matrix and transforms the DCT coefficient into an integer transform coefficient using the approximated 4x4 DCT matrix. The scaling quantization unit may quantize the integer transform coefficient to generate the data in the second format (e.g., H.264 data).Type: GrantFiled: September 11, 2006Date of Patent: November 15, 2011Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry FoundationInventors: Chan-Yul Park, Nam-Ik Cho
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Patent number: 7876976Abstract: A method for resizing an image using a resizing ratio may include receiving DCT (Discrete Cosine Transform) coefficients of an input image; calculating a transformation matrix for transforming the input image to an integer aspect ratio closest to the resizing ratio; performing a coarse resizing on the input image in a DCT domain using the transformation matrix; obtaining a spatial image by performing an IDCT (Inverse Discrete Cosine Transform) on the coarse-resized domain; and forming an output image by performing a fine resizing on the spatial image in a spatial domain.Type: GrantFiled: February 23, 2007Date of Patent: January 25, 2011Assignees: Seoul National University Industry Foundation, Samsung Electronics Co., Ltd.Inventors: Nam-ik Cho, Chan-yul Park
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Publication number: 20070237414Abstract: A method for resizing an image using a resizing ratio may include receiving DCT (Discrete Cosine Transform) coefficients of an input image; calculating a transformation matrix for transforming the input image to an integer aspect ratio closest to the resizing ratio; performing a coarse resizing on the input image in a DCT domain using the transformation matrix; obtaining a spatial image by performing an IDCT (Inverse Discrete Cosine Transform) on the coarse-resized domain; and forming an output image by performing a fine resizing on the spatial image in a spatial domain.Type: ApplicationFiled: February 23, 2007Publication date: October 11, 2007Inventors: Nam-ik Cho, Chan-yul Park
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Publication number: 20070058720Abstract: An apparatus for and a method of transcoding data in a first format, for example, MPEG (moving picture experts group)-2 data into data in a second format, for example, H.264 data. The apparatus may include a scaling dequantization unit, a coefficient transform unit, and/or a scaling quantization unit. The scaling dequantization unit may dequantize the data in the first format (e.g., MPEG-2 data) to generate a DCT (discrete cosine transform) coefficient. The coefficient transform unit may approximate a 4x4 second data format (e.g., H.264) integer transform matrix to a 4x4 DCT matrix and transforms the DCT coefficient into an integer transform coefficient using the approximated 4x4 DCT matrix. The scaling quantization unit may quantize the integer transform coefficient to generate the data in the second format (e.g., H.264 data).Type: ApplicationFiled: September 11, 2006Publication date: March 15, 2007Inventors: Chan-Yul Park, Nam-Ik Cho