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).

  • Patent number: 9628528
    Abstract: 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: Grant
    Filed: July 17, 2014
    Date of Patent: April 18, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong Yong Lim, Joo Myoung Seok, Sang Woo Ahn, Yong Ju Cho, Ji Hun Cha
  • Publication number: 20170098296
    Abstract: Provided are a method and a device for converting a White-Red-Green-Blue (WRGB) color filter array into a Red-Green-Blue (RGB) color filter array in order to be easily applied to a commercial digital camera. The method includes (a) correcting a color of a White-Red-Green-Blue (WRGB) color filter array, (b) converting the WRGB color filter array into a Red-Green-Blue (RGB) color filter array, and (c) correcting a green of the RGB color filter array by using multichannel color difference value.
    Type: Application
    Filed: March 3, 2016
    Publication date: April 6, 2017
    Inventors: Jong Wha CHONG, Jong Joo PARK, Sang Woo AHN
  • Publication number: 20160292821
    Abstract: An apparatus and a method for displaying a panoramic image using a look-up table (LUT) are disclosed, including generating an LUT may include determining first geometric correction information to transform an input domain pixel coordinate system of an input image to a panorama domain pixel coordinate system of a panoramic image, determining second geometric correction information to transform an output domain pixel coordinate system of an output image of the panoramic image to the panorama domain pixel coordinate system of the panoramic image, determining third geometric correction information to transform the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image based on the first geometric correction information and second geometric correction information, and generating an LUT that maps the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 6, 2016
    Inventors: Yong Ju CHO, Joo Myoung SEOK, Sang Woo AHN, Ji Hun CHA, Arshad ALI, Muhammad MURTAZA, Rehan HAFIZ, Ashar RASUL, Saleh SAEED, Muhammad Umer KAKLI
  • Patent number: 9460351
    Abstract: 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: Grant
    Filed: September 24, 2013
    Date of Patent: October 4, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kwi Hoon Kim, Woong Shik You, Jae Hwui Bae, Sang Woo Ahn, O Hyung Kwon
  • Publication number: 20160267347
    Abstract: 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: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju CHO, Unsang PARK, Joo Myoung SEOK, Sang Woo AHN, Ji Hun CHA
  • Publication number: 20160212338
    Abstract: 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: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joo Myoung SEOK, Sang Woo AHN, Yong Ju CHO, Ji Hun CHA
  • Publication number: 20150026242
    Abstract: 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: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seong Yong LIM, Joo Myoung SEOK, Sang Woo AHN, Yong Ju CHO, Ji Hun CHA
  • Publication number: 20150009390
    Abstract: 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: Application
    Filed: July 3, 2014
    Publication date: January 8, 2015
    Inventors: Yong Ju CHO, Sang Woo AHN, Joo Myoung SEOK, Seong Yong LIM, Ji Hun CHA
  • Publication number: 20140223506
    Abstract: 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: Application
    Filed: November 24, 2013
    Publication date: August 7, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATION RESEARCH INSTITUTE
    Inventors: Sang Woo Ahn, Kwi Hoon Kim, Jae Hwui Bae
  • Publication number: 20140146178
    Abstract: 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: Application
    Filed: September 24, 2013
    Publication date: May 29, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwi Hoon KIM, Woong Shik YOU, Jae Hwui BAE, Sang Woo AHN, O Hyung KWON
  • Publication number: 20130250975
    Abstract: 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: Application
    Filed: January 24, 2011
    Publication date: September 26, 2013
    Inventors: Sang Woo Ahn, Yong Ju Cho
  • Publication number: 20130250051
    Abstract: 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: Application
    Filed: December 12, 2011
    Publication date: September 26, 2013
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: 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
  • Publication number: 20120127266
    Abstract: 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: Application
    Filed: November 23, 2011
    Publication date: May 24, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Eung Don LEE, Se Yoon JEONG, Sang Woo AHN, Jin Soo CHOI, Jin Woong KIM
  • Patent number: 8159523
    Abstract: 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: Grant
    Filed: July 26, 2005
    Date of Patent: April 17, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Wook-Joong Kim, Sang-Woo Ahn, In-Jae Lee, Myung-Seok Ki, Kyu-Heon Kim, Jin-Woo Hong
  • Patent number: 7570692
    Abstract: 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: Grant
    Filed: December 21, 2001
    Date of Patent: August 4, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang-Woo Ahn, Jin Soo Choi, Yong Suk Kim, Munchurl Kim, Jin Woong Kim, Chieteuk Ahn
  • Publication number: 20090135244
    Abstract: 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: Application
    Filed: July 26, 2005
    Publication date: May 28, 2009
    Inventors: Wook-Joong Kim, Sang-Woo Ahn, In-Jae Lee, Myung-Seok Ki, Kyu-Heon Kim, Jin-Woo Hong
  • Publication number: 20080212672
    Abstract: 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: Application
    Filed: May 1, 2008
    Publication date: September 4, 2008
    Inventors: Sang-Woo Ahn, Mun-Churl Kim, Yong-Suk Kim, Jin-Soo Choi, Jin-Woong Kim
  • Patent number: 7376155
    Abstract: 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: Grant
    Filed: January 30, 2002
    Date of Patent: May 20, 2008
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sang-Woo Ahn, Mun-Churl Kim, Yong-Suk Kim, Jin-Soo Choi, Jin-Woong Kim
  • Publication number: 20070038781
    Abstract: 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: Application
    Filed: October 4, 2006
    Publication date: February 15, 2007
    Inventors: Ye-Sun Joung, Sang-Woo Ahn, Kyu-Heon Kim
  • Publication number: 20050235157
    Abstract: 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: Application
    Filed: May 16, 2003
    Publication date: October 20, 2005
    Inventors: Yong-Ju Cho, Sang-Woo Ahn, Ki-Sun Shin, Jin-Soo Choi, Jin-Woong Kim