Patents by Inventor Byeong Ho Choi

Byeong Ho Choi 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).

  • Publication number: 20140118501
    Abstract: Disclosed is a calibration system for stereo cameras. The calibration system includes a rig control module configured to, when a camera calibration parameter is input, control an auto rig according to the camera calibration parameter to perform physical calibration for a camera, a stereo image calibration apparatus configured to calibrate a stereo image to acquire the camera calibration parameter, and output the acquired camera calibration parameter, and a camera control module configured to output the camera calibration parameter, which is input from the stereo image calibration apparatus, to the rig control module, or screen-output the camera calibration parameter. Therefore, physical calibration and image processing calibration for a camera are performed in association with each other.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 1, 2014
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Je Woo Kim, Byeong Ho Choi, Dong Sun Kim, Hyok Song, Cheon Lee
  • Patent number: 8699804
    Abstract: A lossless image compression method for a high definition image is provided. The image compression method generates a minimum value of values produced by subtracting a current virtual pixel value from an average of neighbor pixels designated by a plurality of directions, as the prediction value of a current pixel. Thus, the image compression more efficient than the current JPEG-LS can be achieved.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 15, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Ji Ho Park, Byeong Ho Choi, Je Woo Kim
  • Patent number: 8659642
    Abstract: The present invention relates to a stereoscopic video file format capable of improving bit efficiency and processing efficiency and a computer-readable recording medium in which the corresponding stereoscopic video file are recorded.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: February 25, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Hwa Seon Shin, Jin Su Myung, Je Woo Kim, Byeong Ho Choi
  • Patent number: 8654901
    Abstract: Provided are a decoding apparatus and method. The decoding apparatus includes a repository and a configuration unit. The repository stores a plurality of functional units having an input port and an output port which are respectively represented as tokens. The configuration unit receives decoder description which includes an identifier of at least one of the functional units and connection relationship information between the functional units, selects each functional unit corresponding to the received identifier from the repository, and connects the selected functional units by using the token to configure a variable decoder. The decoding apparatus and method defines the connection relationships between a plurality of functional units that configure a decoder, and thus can quickly and dynamically configure a decoder suitable for various encoding schemes.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: February 18, 2014
    Assignee: Korea Electronics Technology Institute
    Inventors: Hyun Gyu Kim, Sin Wook Lee, Hwa Seon Shin, Sang Heon Lee, Byeong Ho Choi, Chung Ku Lee, Euee Seon Jang
  • Patent number: 8620070
    Abstract: A corresponding image processing method is provided. The corresponding image processing method includes a first step for searching for a corresponding point of a corresponding image; a second step for performing radiometric calibration such that a camera response function of the corresponding image has a linear function; a third step for compensating for a color of the corresponding image by calculating a color conversion matrix; and a fourth step for measuring similarity of the corresponding image.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: December 31, 2013
    Assignee: Korean Electronics Technology Institute
    Inventors: Young-Bae Hwang, Je-Woo Kim, Byeong-Ho Choi
  • Publication number: 20130329268
    Abstract: A method for eliminating hologram DC noise and a hologram device using the same are provided. The method for processing the hologram includes: receiving input of hologram data; and implementing a differential operation with respect to the hologram data. Accordingly, the hologram data is processed by implementing the differential operation with respect to the hologram data, so that DC noise occurring when the hologram is reconstructed can be effectively eliminated.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 12, 2013
    Inventors: Choong Sang Cho, Byeong Ho Choi, Hoon Jong Kang, Sang Keun Lee
  • Publication number: 20130250057
    Abstract: The present invention relates to a method for making 3D stereo digital broadcast service compatible in an MPEG-2-TS format which is used for transmitting and receiving digital TV. To this end, suggested is a method for transmitting detailed information which supports both TS-level multiplexing and ES-level multiplexing when left and right compressed bitstreams are multiplexed, when service compatibility is enabled.
    Type: Application
    Filed: January 18, 2011
    Publication date: September 26, 2013
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Byeong Ho Choi, HwaSeon Shin, JaeGon Kim, ByungTak Lee, Euy Doc Jang
  • Publication number: 20130242050
    Abstract: The present invention relates to a method for selecting an appropriate mode when performing a new broadcast, such as a 3D stereo broadcast, a UHDTV broadcast, and a multi-view broadcast, among others, while maintaining compatibility with existing broadcasting channels in an MPEG-2-TS format for transmitting and receiving digital TV, and to a method for recognizing a descriptor. To this end, the present invention suggests providing the descriptor which is related to synthesizing left and right images using the type of stream, existence of the descriptor, and a frame-compatible mode flag.
    Type: Application
    Filed: January 18, 2011
    Publication date: September 19, 2013
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Byeong Ho Choi, Je Woo Kim, Hwa Seon Shin
  • Patent number: 8428128
    Abstract: Provided is a method for prediction coding using scalable video codec, which can support various chrominance spaces. A method for prediction coding includes setting a target layer based on corresponding device information on a specific image service request, performing a chrominance space conversion on an image signal of a base layer using a chrominance space conversion equation preset in a scalable video codec selectively according to whether a chrominance space conversion is necessary in prediction coding between the base layer and the target layer, and performing inter-layer prediction coding through an additional signal conversion based on necessary any one of spatial scalability, chroma-format scalability and bit-depth scalability.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: April 23, 2013
    Assignee: Korea Electronics Technology Institute
    Inventors: Ji Ho Park, Byeong Ho Choi, Je Woo Kim, Yong Hwan Kim, Hwa Seon Shin
  • Publication number: 20130093843
    Abstract: Disclosed is a method for configuring a stereoscopic moving picture file. According to one embodiment of the present invention, the method for configuring a stereoscopic moving picture file is to analyze a plurality of right and left images which constitute a stereoscopic moving picture, and to obtain disparity information and depth information of the stereoscopic moving picture file. Then, biostability information for the stereoscopic moving picture file is set using at least one piece of information obtained from the disparity information and depth information, and the set biostability information is included in the coded data of the stereoscopic moving picture.
    Type: Application
    Filed: April 25, 2011
    Publication date: April 18, 2013
    Inventors: Sung-Moon Chun, Byeong-Ho Choi, Hwa-Seon Shin
  • Publication number: 20120324575
    Abstract: A system, method and program for detecting and blocking unwanted programs in real time based on process behavior analysis and a recording medium for storing the program. In particular, the invention relates to a system, method and program for detecting and blocking unwanted programs in real time based on process behavior analysis and a recording medium for storing the program, in which a security server defines lists of unwanted abnormal actions of a process in advance, detects the number of abnormal actions that have occurred, collects the abnormal actions, and detects and blocks an unwanted process by matching a program executed on a user terminal with the lists of abnormal actions.
    Type: Application
    Filed: April 27, 2010
    Publication date: December 20, 2012
    Applicant: ISE Information Co., Ltd.
    Inventors: Byeong Ho Choi, Chol Su Im
  • Publication number: 20120308126
    Abstract: A corresponding image processing method is provided. The corresponding image processing method includes a first step for searching for a corresponding point of a corresponding image; a second step for performing radiometric calibration such that a camera response function of the corresponding image has a linear function; a third step for compensating for a color of the corresponding image by calculating a color conversion matrix; and a fourth step for measuring similarity of the corresponding image.
    Type: Application
    Filed: November 3, 2011
    Publication date: December 6, 2012
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Young-Bae HWANG, Je-Woo KIM, Byeong-Ho CHOI
  • Publication number: 20120299929
    Abstract: The present invention relates to a multimedia-data-processing method which enables a media graph to always be constructed in a “connection without negotiation” manner, on the basis of an already known media graph construction, and thus provides a media framework in which procedures for connecting components are minimized, thereby improving the performance of a system and satisfying the requests of an OS platform builder and a media application developer. The multimedia-data-processing method of the present invention is performed by a multimedia framework, and comprises: (a) a step of receiving component information required for the construction of the media graph and component connection information from a media application; and (b) a step of ensuring that the media graph is constructed by the content received in step (a), and that the media graph waits for a rendering command, thereby eliminating the necessity of permitting the media application to check the construction of the media graph.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 29, 2012
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Byeong Ho Choi, Yong Hwan Kim, Hwa Seon Shin, Choong Sang Cho, Min Seok Park
  • Publication number: 20120291052
    Abstract: Disclosed is a multimedia data processing method by a framework, in which the framework is capable of directly controlling data input and output of components in a state of the framework being interposed between the components and an application program, thereby reducing the time and effort involved in developing the components or the application program.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 15, 2012
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Byeong Ho Choi, Yong Hwan Kim, Hwa Seon Shin, Choong Sang Cho, Min Seok Park
  • Publication number: 20120195511
    Abstract: A lossless image compression method for a high definition image is provided. The image compression method generates a minimum value of values produced by subtracting a current virtual pixel value from an average of neighbor pixels designated by a plurality of directions, as the prediction value of a current pixel. Thus, the image compression more efficient than the current JPEG-LS can be achieved.
    Type: Application
    Filed: April 19, 2011
    Publication date: August 2, 2012
    Inventors: Ji Ho Park, Byeong Ho Choi, Je Woo Kim
  • Publication number: 20120183148
    Abstract: A multichannel multitrack audio system and an audio processing method are provided. The audio processing method down-mixes and encodes a first audio object constituting the audio from multiple channels to a lower number of channels. Thus, the method for down-mixing audio objects of the audio from the multichannel to the lower number of channels generates the multichannel multi-object audio and reproduces the generated multichannel multi-object audio. Abrupt data increase can be addressed in processing the multichannel multi-object audio.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 19, 2012
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Choong Sang CHO, Je Woo KIM, Byeong Ho CHOI, Hwa Seon SHIN
  • Publication number: 20120173246
    Abstract: The present invention provides a new recursive FIR filter scheme which supports a variable order short-term predictor, and uses a pipeline stall based on the radix-2 algorithm and an autocorrelation processing time for reducing the complexity of MPEG-4 ALS hardware implementation.
    Type: Application
    Filed: December 29, 2011
    Publication date: July 5, 2012
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Byeong Ho CHOI, Dong Sun KIM, Je Woo KIM, Choong Sang CHO, Seung Yerl LEE, Sang Seol LEE
  • Patent number: 8165201
    Abstract: The invention relates to a method of computing a disparity, a method of synthesizing an interpolation view, a method of encoding and decoding multi-view video using the same, and an encoder and a decoder using the same. In particular, the invention relates to a method of computing a disparity, a method of synthesizing an interpolation view, a method of encoding and decoding multi-view video using the same, and an encoder and a decoder using the same, which can rapidly compute an initial disparity of a block using region segmentation, accurately compute a disparity of the block using a variable block, and synthesize an interpolation view on the basis of a disparity value computed in a pixel basis using an adaptive search range, thereby improving quality of the interpolation view, and also can encode and decode a multi-view video independently from an existing prediction mode while using the interpolation view as a reference picture, thereby improving coding efficiency.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: April 24, 2012
    Assignees: Gwangju Institute of Science and Technology, KT Corporation
    Inventors: Yo Sung Ho, Cheon Lee, Kwan Jung Oh, Byeong Ho Choi
  • Patent number: 8135225
    Abstract: A method for coding an RGB color space signal is disclosed. In accordance with the method, a base plane is encoded using an independent mode, and an enhanced plane is encoded by referring to the base plane without converting the RGB color space signal into YCbCr color space signal to reduce a redundancy between RGB planes and improve a compression ratio of an image.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: March 13, 2012
    Assignee: Korea Electronics Technology Institute
    Inventors: Yong-Hwan Kim, Ji-Ho Park, Byeong-Ho Choi, Je-Woo Kim, Joonki Paik
  • Publication number: 20110250561
    Abstract: A dental drill is intended for performing flapless implant surgery by being mounted on a drill device. The dental drill comprises a drill body and a mounting portion for mounting the drill body to a drill device. The drill body comprises: a cutting part for providing a side blade having a certain length from the cutting edge, and a body portion with limited cutting ability. Tooth bone can be easily removed because of the cutting part at the end portion of the drill body. Also, gums can be protected because the body portion is not only formed with the cutting part integrally, but the side blade either does not exist or is removed.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 13, 2011
    Applicant: MEGAGEN IMPLANT CO., LTD.
    Inventors: Byeong Ho Choi, Seung Mi Jeong