Patents by Inventor Sang-Woo Ahn
Sang-Woo Ahn 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: 9460351Abstract: An image processing apparatus using a smart glass is provided, the image processing apparatus including an extractor to extract a first target to be observed by a user from a first image received from the smart glass and generate a second image using the extracted first target, an information collector to collect information related to the first target, and an image generator to reconstruct a third image using at least one of the second image and the information related to the first target, based on user settings.Type: GrantFiled: September 24, 2013Date of Patent: October 4, 2016Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Kwi Hoon Kim, Woong Shik You, Jae Hwui Bae, Sang Woo Ahn, O Hyung Kwon
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Publication number: 20160267347Abstract: Provided is an apparatus and method for detecting a key point using a high-order Laplacian of Gaussian (LoG) kernel, wherein the method includes generating the high-order LoG kernel using an LoG operator, and detecting a key point of an image using the high-order LoG kernel.Type: ApplicationFiled: March 9, 2016Publication date: September 15, 2016Applicant: Electronics and Telecommunications Research InstituteInventors: Yong Ju CHO, Unsang PARK, Joo Myoung SEOK, Sang Woo AHN, Ji Hun CHA
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Publication number: 20160212338Abstract: Disclosed are a method and an apparatus for generating a panoramic image based on an image quality. The method of generating a panoramic image includes extracting a matching point to connect a base image captured by a first camera and a reference image captured by a second camera, geometrically transforming the reference image by determining a homography between the base image and the reference image, determining a change in image quality of the geometrically transformed reference image, and generating a panoramic image in which the geometrically transformed reference image is connected to the base image based on the determined change in image quality.Type: ApplicationFiled: January 13, 2016Publication date: July 21, 2016Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Joo Myoung SEOK, Sang Woo AHN, Yong Ju CHO, Ji Hun CHA
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Publication number: 20150026242Abstract: A method of receiving content in a client is provided. The method may include receiving, from a server, a spatial set identifier (ID) corresponding to a tile group including at least one tile, sending, to the server, a request for first content corresponding to metadata, and receiving, from the server, the first content corresponding to the request.Type: ApplicationFiled: July 17, 2014Publication date: January 22, 2015Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Seong Yong LIM, Joo Myoung SEOK, Sang Woo AHN, Yong Ju CHO, Ji Hun CHA
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Publication number: 20150009390Abstract: The present specification is related to a method for performing multi-projection and a multi-projection system for minimizing a black offset in a multi-projection environment. The present specification provides the method for performing multi-projection comprising estimating the intensity transfer function (ITF) of a plurality of projectors, calculating an optimal black offset threshold for each of the projectors by using each of the ITFs, and applying the optimal black offset threshold to an image projection by each of the projectors.Type: ApplicationFiled: July 3, 2014Publication date: January 8, 2015Inventors: Yong Ju CHO, Sang Woo AHN, Joo Myoung SEOK, Seong Yong LIM, Ji Hun CHA
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Publication number: 20140223506Abstract: There is disclosed a method of synchronizing a first image and a second image forming multiple images in broadcasting service based on the multiple images. The method includes receiving a stream regarding the first stream and a stream regarding the second stream through a plurality of channels, obtaining the first image and the second image by decoding the stream regarding the first stream and the stream regarding the second stream and obtaining a base Program Clock Reference (PCR) descriptor in at least one of the stream regarding the first stream and the stream regarding the second stream, selecting a base stream based on the base PCR descriptor and determining a base PCR based on the base PCR descriptor, and synchronizing the first image and the second image based on the base PCR.Type: ApplicationFiled: November 24, 2013Publication date: August 7, 2014Applicant: ELECTRONICS AND TELECOMMUNICATION RESEARCH INSTITUTEInventors: Sang Woo Ahn, Kwi Hoon Kim, Jae Hwui Bae
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Publication number: 20140146178Abstract: An image processing apparatus using a smart glass is provided, the image processing apparatus including an extractor to extract a first target to be observed by a user from a first image received from the smart glass and generate a second image using the extracted first target, an information collector to collect information related to the first target, and an image generator to reconstruct a third image using at least one of the second image and the information related to the first target, based on user settings.Type: ApplicationFiled: September 24, 2013Publication date: May 29, 2014Applicant: Electronics and Telecommunications Research InstituteInventors: Kwi Hoon KIM, Woong Shik YOU, Jae Hwui BAE, Sang Woo AHN, O Hyung KWON
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Publication number: 20130250051Abstract: Disclosed are a signaling method for a stereoscopic video service and an apparatus using the method. An image decoding method comprises: a step of determining a field value based on a broadcast service type and a display mode in decoding a program level descriptor; and a step of determining an encoded stream type, whether an elementary stream is a reference stream, whether the elementary stream is a left-eye image or a right-eye image, additional image upsampling information and information on a subsampled line. Thus, efficiency of encoding/decoding an additional image for a stereoscopic video content may increase.Type: ApplicationFiled: December 12, 2011Publication date: September 26, 2013Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Bong Ho Lee, Kug Jin Yun, Won Sik Cheong, Eung Don Lee, Se Yoon Jeong, Sang Woo Ahn, Young Kwon Lim, Nam Ho Hur, Soo In Lee, Jin Soo Choi, Jin Woong Kim
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Publication number: 20130250975Abstract: A digital broadcasting system provides a method and device for packetizing a video stream. The packetizing device includes: a video frame check block for classifying an encoded video stream according to the frame type; a header setting block for setting a packet header for each of the classified frames; and a packetizing block for packetizing a video frame on the basis of the set packet header. The frame type may be one of an intra-coded (I) frame, a predicted (P) frame, and a bi-predictive (B) frame. Since a digital broadcasting stream is efficiently packetized, overhead due to a typical synchronization packet may be reduced, and accordingly, bandwidth may be efficiently used.Type: ApplicationFiled: January 24, 2011Publication date: September 26, 2013Inventors: Sang Woo Ahn, Yong Ju Cho
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Publication number: 20120127266Abstract: A method and apparatus for providing a broadcasting service are provided. The broadcasting service may be classified based on a broadcasting service type, such as a frame-compatible service, and a service-compatible service. Additionally, a descriptor may be generated based on the broadcasting service type, and a compatibility between a stereoscopic three-dimensional (3D) broadcasting service and a single stream-based broadcasting service may be provided.Type: ApplicationFiled: November 23, 2011Publication date: May 24, 2012Applicant: Electronics and Telecommunications Research InstituteInventors: Eung Don LEE, Se Yoon JEONG, Sang Woo AHN, Jin Soo CHOI, Jin Woong KIM
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Patent number: 8159523Abstract: Provided is a method for convergent type three-dimensional (3D) multi-viewpoint image acquisition. The method for acquiring a multi-viewpoint image in an image acquisition apparatus comprises the steps of: converting the image acquisition apparatus to a multi-viewpoint image photographing mode; if converted to the multi-viewpoint image photographing mode in the converting step, providing a plurality of geometric shapes to set a position of an object to be photographed within a screen and selecting a desired shape of the geometric shapes in response to an inputted shape selection signal; if the desired geometric shape is selected in the shape providing step, adjusting a position and a size of the selected geometric shape in response to a shape adjustment signal; and photographing a whole image having the object that places within the adjusted geometric shape in the adjusting step.Type: GrantFiled: July 26, 2005Date of Patent: April 17, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Wook-Joong Kim, Sang-Woo Ahn, In-Jae Lee, Myung-Seok Ki, Kyu-Heon Kim, Jin-Woo Hong
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Patent number: 7570692Abstract: An apparatus and method for transmitting MPEG-4 data synchronized to MPEG-2 data is disclosed. The apparatus for transmitting MPEG-4 data synchronized to MPEG-2 data includes: an object separation unit for extracting MPEG-4 object data from MP4 data, separating meta information from the object data, and generating program information and synchronization information; a conversion unit for converting the MPEG-4 object data to MPEG-4 packets of which data structure is the same as that of MPEG-2 data, based on the program information and synchronization information; and a multiplexing unit for multiplexing the MPEG-4 packets with the MPEG-2 data.Type: GrantFiled: December 21, 2001Date of Patent: August 4, 2009Assignee: Electronics and Telecommunications Research InstituteInventors: Sang-Woo Ahn, Jin Soo Choi, Yong Suk Kim, Munchurl Kim, Jin Woong Kim, Chieteuk Ahn
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Publication number: 20090135244Abstract: Provided is a method for convergent type three-dimensional (3D) multi-viewpoint image acquisition. The method for acquiring a multi-viewpoint image in an image acquisition apparatus comprises the steps of: converting the image acquisition apparatus to a multi-viewpoint image photographing mode; if converted to the multi-viewpoint image photographing mode in the converting step, providing a plurality of geometric shapes to set a position of an object to be photographed within a screen and selecting a desired shape of the geometric shapes in response to an inputted shape selection signal; if the desired geometric shape is selected in the shape providing step, adjusting a position and a size of the selected geometric shape in response to a shape adjustment signal; and photographing a whole image having the object that places within the adjusted geometric shape in the adjusting step.Type: ApplicationFiled: July 26, 2005Publication date: May 28, 2009Inventors: Wook-Joong Kim, Sang-Woo Ahn, In-Jae Lee, Myung-Seok Ki, Kyu-Heon Kim, Jin-Woo Hong
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Publication number: 20080212672Abstract: A metadata transmitter synchronized with multimedia contents comprises: a multimedia contents authoring unit for generating and editing multimedia contents; a multimedia contents format converter for compressing the multimedia contents, converting them into a transmission format, and outputting them; a metadata authoring unit for generating and editing metadata for describing the multimedia contents, the metadata including transmission types and transmission information; a metadata format converter for converting the metadata into binary codes, converting the converted metadata into a synchronization format for synchronization with the multimedia contents and a transmission format, and outputting them; and a multiplexer for multiplexing the multimedia contents format and the metadata format respectively output from the multimedia contents format converter and the metadata format converter into a stream, and outputting it.Type: ApplicationFiled: May 1, 2008Publication date: September 4, 2008Inventors: Sang-Woo Ahn, Mun-Churl Kim, Yong-Suk Kim, Jin-Soo Choi, Jin-Woong Kim
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Patent number: 7376155Abstract: A metadata transmitter synchronized with multimedia contents comprises: a multimedia contents authoring unit for generating and editing multimedia contents; a multimedia contents format converter for compressing the multimedia contents, converting them into a transmission format, and outputting them; a metadata authoring unit for generating and editing metadata for describing the multimedia contents, the metadata including transmission types and transmission information; a metadata format converter for converting the metadata into binary codes, converting the converted metadata into a synchronization format for synchronization with the multimedia contents and a transmission format, and outputting them; and a multiplexer for multiplexing the multimedia contents format and the metadata format respectively output from the multimedia contents format converter and the metadata format converter into a stream, and outputting it.Type: GrantFiled: January 30, 2002Date of Patent: May 20, 2008Assignee: Electronics and Telecommunications Research InstituteInventors: Sang-Woo Ahn, Mun-Churl Kim, Yong-Suk Kim, Jin-Soo Choi, Jin-Woong Kim
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Publication number: 20070038781Abstract: Provided is an apparatus and method for converting contents. The apparatus includes: a contents input unit for receiving contents for digital television (DTV) broadcasting; a decompiling unit for analyzing a class file of the contents for DTV broadcasting transmitted from the contents input unit and creating common contents conversion information and contents conversion information; a contents converting unit for converting the contents for DTV broadcasting transmitted from the contents input unit based on the created common contents conversion information; and an eXtensible MPEG-4 Textual format (XMT) creating unit for applying the contents conversion information to a template file from outside and creating XMT.Type: ApplicationFiled: October 4, 2006Publication date: February 15, 2007Inventors: Ye-Sun Joung, Sang-Woo Ahn, Kyu-Heon Kim
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Publication number: 20050235157Abstract: Disclosed is a program recommendation system and method which receive PSIP/SI and programming information on digital broadcasting and provide a program recommendation service to viewers in an EPG application. The system receives personal information in order to set information of each viewer, confirms the received PSIP/SI information, and generates watching information through a viewer watching TV, in a predetermined format. In addition, the system inputs the generated watching information to a database, converts watching information of each viewer which is stored in the database input unit into divided input patterns using a fuzzy membership function to analyze the input patterns, and extracts information on a program with a high degree of preference from the analyzed result. Furthermore the system outputs preference program information of each viewer on a screen in order to recommend a program.Type: ApplicationFiled: May 16, 2003Publication date: October 20, 2005Inventors: Yong-Ju Cho, Sang-Woo Ahn, Ki-Sun Shin, Jin-Soo Choi, Jin-Woong Kim
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Publication number: 20040098398Abstract: A metadata transmitter synchronized with multimedia contents comprises: a multimedia contents authoring unit for generating and editing multimedia contents; a multimedia contents format converter for compressing the multimedia contents, converting them into a transmission format, and outputting them; a metadata authoring unit for generating and editing metadata for describing the multimedia contents, the metadata including transmission types and transmission information; a metadata format converter for converting the metadata into binary codes, converting the converted metadata into a synchronization format for synchronization with the multimedia contents and a transmission format, and outputting them; and a multiplexer for multiplexing the multimedia contents format and the metadata format respectively output from the multimedia contents format converter and the metadata format converter into a stream, and outputting it.Type: ApplicationFiled: December 4, 2003Publication date: May 20, 2004Inventors: Sang-Woo Ahn, Mun-Churl Kim, Yong-Suk Kim, Jin-Soo Choi, Jin-Woong Kim
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Publication number: 20040057457Abstract: An apparatus and method for transmitting MPEG-4 data synchronized to MPEG-2 data is disclosed. The apparatus for transmitting MPEG-4 data synchronized to MPEG-2 data includes: an object separation unit for extracting MPEG-4 object data from MP4 data, separating meta information from the object data, and generating program information and synchronization information; a conversion unit for converting the MPEG-4 object data to MPEG-4 packets of which data structure is the same as that of MPEG-2 data, based on the program information and synchronization information; and a multiplexing unit for multiplexing the MPEG-4 packets with the MPEG-2 data.Type: ApplicationFiled: October 28, 2003Publication date: March 25, 2004Inventors: Sang-Woo Ahn, Jin Soo Choi, Yong Suk Kim, Munchurl Kim, Jin Woong Kim, Chieteuk Ahn