Patents by Inventor Sea-Nae Park
Sea-Nae 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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Publication number: 20140362913Abstract: 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.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Inventors: 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
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Publication number: 20140362915Abstract: 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.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Inventors: 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
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Publication number: 20140362914Abstract: 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.Type: ApplicationFiled: August 26, 2014Publication date: December 11, 2014Inventors: 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
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Patent number: 8897360Abstract: The present invention relates to a method and to an apparatus for encoding and decoding images by adaptively using an interpolation filter in consideration of the characteristics of input images. The apparatus of the present invention comprises a prediction block-generating unit including a selector for adaptively selecting an interpolation filter for generating a prediction block in consideration of the context information of an input image block, a filter bank in which groups of interpolation filters are stored in correspondence with the context information, and a specific interpolation filter which is selected from the filter bank in accordance with the control of the selector, and which interpolates a reference image block associated with the input image block.Type: GrantFiled: January 28, 2010Date of Patent: November 25, 2014Assignees: Samsung Electronics Co., Ltd., Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dae-Sung Cho, Woong-Il Choi, Kwan-Woong Song, Young-Hun Joo, Yong-Serk Kim, Dong-Gyu Sim, Jung-Hak Nam, Sea-Nae Park, Kwang-Su Jung
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Patent number: 8867854Abstract: 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.Type: GrantFiled: January 10, 2013Date of Patent: October 21, 2014Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee UniversityInventors: 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
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Patent number: 8842924Abstract: 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.Type: GrantFiled: October 3, 2013Date of Patent: September 23, 2014Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee UniversityInventors: 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
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Publication number: 20140036994Abstract: 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.Type: ApplicationFiled: September 27, 2013Publication date: February 6, 2014Applicants: Electronics and Telecommunications Research Institute, Korea Advanced Institute of Science and Technology, University-Industry Cooperation Group of Kyung Hee University, Kwangwoon University Industry-Academic Collaboration FoundationInventors: 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
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Publication number: 20140029668Abstract: 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.Type: ApplicationFiled: October 3, 2013Publication date: January 30, 2014Applicants: Electronics and Telecommunications Research Institute, University-Industry Cooperation Group of Kyung Hee University, Kwangwoon University Industry-Academic Collaboration FoundationInventors: 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
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Publication number: 20130272395Abstract: 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.Type: ApplicationFiled: January 10, 2013Publication date: October 17, 2013Inventors: 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
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Publication number: 20130223528Abstract: The present invention relates to an entropy encoding method comprising the following steps: updating probability information using the update information derived based on a bit stream received from an encoder; deriving a bin corresponding to the current codeword based on the updated probability information; and performing the inverse binarization of the derived bin to acquire a syntax element. According to the present invention, video-encoding/decoding efficiency may be improved.Type: ApplicationFiled: November 15, 2011Publication date: August 29, 2013Applicant: Electronics and Telecommunications Research InstituteInventors: 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, Dong Gyu Sim, Sea Nae Park, Eun Kyung Ryu, Seoung Jun Oh, Gwang Hoon Park
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Publication number: 20130070845Abstract: 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.Type: ApplicationFiled: August 6, 2010Publication date: March 21, 2013Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sung-Chang Lim, Hahyun Lee, Hui Yong Kim, Se Yoon Jeong, Sukhee Cho, Hae-Chul Choi, Jongho Kim, Jinho 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
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Publication number: 20130058585Abstract: 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.Type: ApplicationFiled: May 6, 2011Publication date: March 7, 2013Applicant: Electronics and Telecommunications Research InstitInventors: 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
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Patent number: 8363965Abstract: 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.Type: GrantFiled: October 1, 2009Date of Patent: January 29, 2013Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee UniversityInventors: 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
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Publication number: 20120033728Abstract: The present invention relates to a method and to an apparatus for encoding and decoding images by adaptively using an interpolation filter in consideration of the characteristics of input images. The apparatus of the present invention comprises a prediction block-generating unit including a selector for adaptively selecting an interpolation filter for generating a prediction block in consideration of the context information of an input image block, a filter bank in which groups of interpolation filters are stored in correspondence with the context information, and a specific interpolation filter which is selected from the filter bank in accordance with the control of the selector, and which interpolates a reference image block associated with the input image block.Type: ApplicationFiled: January 28, 2010Publication date: February 9, 2012Applicants: Kwangwoon University Industry-Academic Collaboration Foundation, Samsung Electronics Co., Ltd.Inventors: Dae-Sung Cho, Woong Choi, II, Kwan-Woong Song, Young-Hun Joo, Yong-Serk Kim, Dong-Gyu Sim, Jung-Hak Nam, Sea-Nae Park, Kwang-Su Jung
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Publication number: 20120020579Abstract: 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.Type: ApplicationFiled: October 1, 2009Publication date: January 26, 2012Inventors: 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
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Publication number: 20100027617Abstract: Provided is a method of compressing a reference frame in encoding or decoding moving images. A reference frame to be compressed is divided into basic processing blocks. The basic processing blocks are divided into sub-blocks. A maximum value and a minimum value of pixels within each sub-block are calculated. A necessary bit length needed for compression of each sub-block is obtained based on a difference between the maximum value and the minimum value. An average bit length of the sub-blocks within the basic processing block is calculated based on the calculated necessary bit lengths of the sub-blocks. Bits are variably allocated to each sub-block by adjusting the necessary bit length of each sub-block so that the average bit length of the sub-blocks within a corresponding basic processing block is less than or equal to a preset required bit length. Each sub-block is compressed to the allocated bits.Type: ApplicationFiled: July 29, 2009Publication date: February 4, 2010Applicants: Samsung Electronics Co., Ltd., Kwangwoon University Industry-Academic Collaboration FoundationInventors: Chang-Hyun LEE, Kwan-Woong SONG, Young-Hun JOO, Yong-Serk KIM, Dong-Gyu SIM, Sea-Nae PARK
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Publication number: 20090201992Abstract: Provided is a multiple camera system, and more particularly, a method and apparatus for processing hopping default views in an apparatus for encoding/decoding video streams of multiple view positions. The encoding apparatus for the multiple camera system includes an encoder for receiving video signals of multiple view positions, and encoding the video signals based on a predetermined default Group of Pictures (GoP); a default GoP selector for providing the default GoP information to the encoder; and a multiplexer for multiplexing the encoded video signals and sequentially outputting only the default GoP.Type: ApplicationFiled: October 4, 2006Publication date: August 13, 2009Inventors: Jeong-Il Seo, Dong-Gyu Sim, Wook-Joong Kim, Kyu-Heon Kim, Kyeong-Ok Kang, Jin-Woo Hong, Seoung-Jun Oh, Yung-Lyul Lee, Chang-Beom Ahn, Sea-Nae Park