Patents by Inventor Woo-sung Shim

Woo-sung Shim 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: 7650043
    Abstract: A method of removing blocking artifacts from block-coded digital images and an image reproducing apparatus using the same remove blocking artifacts from a block-coded digital image. The method includes adjusting filtering offsets on a block-by-block basis using motion vector (MV) and quantization parameter (QP) values; and performing deblocking filtering to remove the blocking artifacts from a decoded digital image using the adjusted filtering offsets. Accordingly, since the filtering offsets may be adaptively adjusted on a block-by-block basis to fit image characteristics, the blocking artifacts may be efficiently removed, thus, improving image quality.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-sung Shim, Eun-kyoung Park
  • Publication number: 20100002943
    Abstract: Provided are method and apparatus for encoding and decoding an image by using a bit plane-based image encoding method and a block-based image encoding method respectively on bit planes based on the n-m most significant bits of an input image including n-bit pixel values and an image based on the m least significant bits of the input image.
    Type: Application
    Filed: May 18, 2009
    Publication date: January 7, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-ho MOON, Woo-sung Shim, Sung-bum Park, Dai-woong Choi, Jong-bum Choi, Jae-won Yoon, Jung-hyeon Kim
  • Publication number: 20090285497
    Abstract: Provided are an image processing method and image processing apparatus using least significant bits (LSBs). The image processing method includes generating first binary codes by converting pixel values of an input image into a binary code format; converting the first binary codes into gray codes and determining a predetermined number of sequential LSBs from among the gray codes; and generating second binary codes by converting the determined LSBs of the gray codes into the binary code format.
    Type: Application
    Filed: April 17, 2009
    Publication date: November 19, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jong-bum Choi, Woo-sung Shim, Sung-bum Park, Young-ho Moon, Dai-Woong Choi, Jae-won Yoon
  • Publication number: 20090279797
    Abstract: Provided are entropy encoding and decoding methods. The entropy encoding method includes receiving residual coefficients obtained by frequency converting a residual image, determining a first bit string about residual coefficients having nonzero levels from among the received residual coefficients, determining at least one lower bit, including a least significant bit of the first bit string, from the first bit string, and determining a second bit string obtained by bit-shifting the first bit string to the right by the number of lower bits.
    Type: Application
    Filed: April 20, 2009
    Publication date: November 12, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jong-bum CHOI, Woo-sung SHIM, Sung-bum PARK, Young-ho MOON, Dai-Woong CHOI, Jae-won YOON
  • Publication number: 20090279803
    Abstract: Provided are methods and apparatuses for converting a lower bit-plane image, and methods and apparatuses for inverse-converting the lower bit-plane image, which increase the correlation of the lower bit-plane image. According to the method of converting a lower bit-plane image, pixels of the lower bit-plane image are sequentially added or subtracted so as to generate a converted lower bit-plane image. Accordingly, the lower bit-plane image has higher regularity, and thus the efficiency of image processing using the lower bit-plane image is improved.
    Type: Application
    Filed: April 8, 2009
    Publication date: November 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho MOON, Sung-bum PARK, Woo-sung SHIM, Dai-Woong CHOI, Jong-bum CHOI, Jae-won YOON
  • Publication number: 20090279796
    Abstract: Provided are a method and apparatus for encoding and decoding an image. The method of encoding an image includes generating half-tone data by applying patterns specified by each color channel to input data, rearranging the generated half-tone data according to the characteristics of the applied patterns, and predicting the rearranged half-tone data and encoding the predicted half-tone data. Therefore, encoding and decoding can be performed more efficiently and a compression rate can be improved.
    Type: Application
    Filed: October 8, 2008
    Publication date: November 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dai-woong Choi, Woo-sung Shim, Sung-bum Park, Young-ho Moon, Jong-bum Choi, Jae-won Yoon
  • Publication number: 20090169123
    Abstract: A method to encode and decode a halftone image such that the halftone image is efficiently compressed and decoded by using pattern characteristics of the halftone image includes determining different template shapes according to characteristics of the halftone image, compressing the halftone image based on determined template shape information, compressing the template shape information, and generating the compressed halftone image and the compressed template shape information as a bitstream.
    Type: Application
    Filed: July 10, 2008
    Publication date: July 2, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-bum PARK, Woo-sung Shim, Young-ho Moon, Dai-woong Choi, Jong-burn Choi
  • Patent number: 7505670
    Abstract: A method and apparatus for controlling digital video recording where parameters related to encoding video frames that are being currently encoded are stored when a pause command is received during recording and the method and apparatus continually record, based on the stored parameters, when the pause command stops, and a camcorder including the pause function. The method includes: receiving a pause command; storing parameters related to encoding video frames that are presently being encoded in a memory, and then stop encoding video frames that are input after the parameters are stored in the memory; and encoding video frames that are input after receiving a pause release command using parameter information related to encoding when the pause release command is received. Thus, video recording efficiency can be improved by having the pause function.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: March 17, 2009
    Assignee: Samsung Electronics Co., Ltd. Co.
    Inventors: Won-kap Jang, Jung-woo Kim, Woo-sung Shim, Jong-gu Jeon
  • Publication number: 20080317361
    Abstract: A method and apparatus for encoding/decoding an image are provided. The method includes partitioning an image into a plurality of areas, allocating the partitioned plurality of areas to views of multi-view image sequences, and encoding the allocated plurality of areas. By doing so, the method can efficiently encode a large-screen image or a high-pixel image, without using a separate codec.
    Type: Application
    Filed: March 14, 2008
    Publication date: December 25, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hak-sup SONG, Woo-sung Shim, Young-ho Moon, Jong-Bum Choi
  • Publication number: 20080285863
    Abstract: A method and apparatus for encoding and decoding a multi-view image for a multi-view display apparatus are provided. The method of encoding a multi-view image includes: compressing a multi-view image based on a reference image relative to multiple views; generating enabled stereo pair information in relation to multi-view images; and generating a bitstream by using the compressed multi-view image and the enabled stereo pair information.
    Type: Application
    Filed: April 15, 2008
    Publication date: November 20, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho MOON, Woo-sung Shim, Hak-sup Song, Jong-bum Choi
  • Publication number: 20080253671
    Abstract: A Method and apparatus for encoding and decoding a multi-view image are provided. The method of encoding a multi-view image includes determining whether each of pictures included in multi-view image sequences is a reference picture referred to by other pictures included in the multi-view image sequences for inter-view prediction, and encoding the pictures using at least one of inter-view prediction and temporal prediction based on the determination result, thereby efficiently encoding and decoding the multi-view image at high speed.
    Type: Application
    Filed: February 7, 2008
    Publication date: October 16, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-bum CHOI, Woo-sung SHIM, Hak-sup SONG, Young-ho MOON
  • Publication number: 20080240590
    Abstract: Methods and apparatuses for encoding and decoding a multi-view image are provided. The method of encoding the multi-view image can use a difference in views between pictures of the multi-view image, add an image area obtained from a picture at one view at a first time to a picture at another view at a second time, thereby generating a reference picture, and perform prediction encoding using the generated reference picture, thereby increasing prediction encoding efficiency.
    Type: Application
    Filed: February 14, 2008
    Publication date: October 2, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-ho MOON, Woo-sung Shim, Hak-sup Song, Jong-bum Choi
  • Publication number: 20080170629
    Abstract: Provided are a method and an apparatus for filtering video data. The method includes determining whether a difference value of illumination change (DVIC) of a current image processing unit containing a current block is different from a DVIC of an image processing unit that is adjacent to the current image processing unit and based on the determining, adjusting a filtering strength of a deblocking filter and performing deblocking filtering on a boundary of the current block using the filter with the adjusted filtering strength.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 17, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woo-sung Shim, Hak-sup Song, Young-ho Moon, Jong-bum Choi
  • Publication number: 20080170618
    Abstract: Provided are a method and apparatus for encoding and decoding multi-view images. The multi-view image encoding method includes predicting a motion vector of a current block, based on information indicating a disparity between a current picture to which the current block belongs and a different picture having a view-point which is different from a view-point of the current picture, and encoding the current block in a skip mode based on the predicted motion vector of the current block.
    Type: Application
    Filed: January 11, 2008
    Publication date: July 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-bum CHOI, Woo-sung SHIM, Hak-sup SONG, Young-ho MOON
  • Publication number: 20080159638
    Abstract: A method and apparatus for encoding and decoding multi-view images. The multi-view image encoding method selects a block corresponding to a current block from another picture having a view-point which is different from a view-point of a current picture to which the current block belongs, on the basis of a global disparity vector representing a global disparity between the current picture and the other picture; and encodes the current block on the basis of block information of a block from among the selected block and blocks adjacent to the selected block. Accordingly, multi-view images can be encoded in consideration of the individual differences between the appearances of objects as well as global disparities between view-points.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 3, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hak-sup Song, Woo-sung Shim, Young-ho Moon, Jong-bum Choi
  • Publication number: 20080089596
    Abstract: Provided is a method and apparatus for encoding and decoding a multi-view image. By predicting a current picture based on at least one of an intra (I) picture of a previous image processing block and an I picture of a current image processing block, which is generated for a different view than a view at which the I picture of the previous image processing block is generated, and encoding the current picture based on the prediction, it is possible to prevent display quality degradation that may occur in images at views other than a base view.
    Type: Application
    Filed: October 15, 2007
    Publication date: April 17, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Bum Choi, Woo-sung Shim, Hak-sup Song, Young-ho Moon
  • Publication number: 20070071099
    Abstract: An external memory device, a method of storing image data for the same, and an image processor using the method to improve an image encoding and/or decoding speed are provided. The method includes forming image data included in a predetermined-size sub-block divided from a macroblock as at least one data storage unit and storing the data storage unit in the external memory.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 29, 2007
    Inventors: Young-sup Lee, Jong-gu Jeon, Woo-sung Shim, Woo-seok Kang, Ki-won Yoo
  • Publication number: 20070009047
    Abstract: An apparatus and method for entropy encoding and decoding of video data. The method for entropy encoding video data includes dividing the video data into at least one partial video data portion and determining an entropy encoding mode to be used for each of the partial video data portion between at least two different entropy encoding modes and performing entropy encoding on each of the partial video data portions using the determined entropy encoding mode.
    Type: Application
    Filed: July 10, 2006
    Publication date: January 11, 2007
    Inventors: Woo-sung Shim, Austin Lobo
  • Patent number: 7110620
    Abstract: An apparatus which processes a digital image and a method therefor which can reduce an error when calculating an output value obtained by interpolating pixel values of the input digital image. The apparatus includes an interpolation processing unit which interpolates an input digital image, and a controller which measures an interpolation interval of pixel values of the digital image, calculates a coefficient by substituting the interpolation interval for a coefficient equation stored in a register, and calculates an interpolation node for the digital image by substituting the coefficient and an output pixel position value of the digital image for an interpolation node calculation equation. The controller controls the interpolation processing unit so as to interpolate the digital image to the interpolation node. As a result, it is possible to reduce an error between an interpolated output pixel position value and an output pixel position value for the pixel values of the input digital image.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: September 19, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-sung Shim, Sung-kyu Choi
  • Patent number: 7027060
    Abstract: Provided are a method and apparatus for accelerating graphic data which can reduce the computational complexity of graphic processing data. The method of accelerating two-dimensional graphic data includes: receiving information regarding the width of a graphic window to be processed; reading pixel data from a memory in which pixel data in the graphic window is stored; receiving information regarding two pixel data regions which are divided from the memory area based on the width information of the graphic window, one pixel data region to be processed using a burst mode and the other pixel data region to be processed in units of bytes; and individually performing predetermined graphic processing on the divided pixel data regions.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: April 11, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-wook Suh, Sung-kyu Choi, Woo-sung Shim