Patents by Inventor Shi-hwa Lee

Shi-hwa Lee 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).

  • Image coding and decoding method and apparatus considering human visual characteristics
    Patent number: 8599930
    Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-shik Kim, Dae-sung Cho, Shi-hwa Lee, Sang-wook Kim
  • Image coding and decoding method and apparatus considering human visual characteristics
    Patent number: 8599928
    Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-shik Kim, Dae-sung Cho, Shi-hwa Lee, Sang-wook Kim
  • Image coding and decoding method and apparatus considering human visual characteristics
    Patent number: 8599927
    Abstract: An image coding method and apparatus considering human visual characteristics are provided. The image coding method comprises (a) modeling image quality distribution of an input image in units of scenes such that the quality of an image input in units of scenes is gradually lowered from a region of interest to a background region, (b) determining a quantization parameter of each region constituting one scene according to the result of modeling of image quality distribution, (c) quantizing image data in accordance with the quantization parameter, and (d) coding entropy of the quantized image data.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: December 3, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-shik Kim, Dae-sung Cho, Shi-hwa Lee, Sang-wook Kim
  • METHOD AND SYSTEM FOR DYNAMICALLY PARALLELIZING APPLICATION PROGRAM
    Publication number: 20130312003
    Abstract: Provided is a method and system for dynamically parallelizing an application program. Specifically, provided is a method and system having multi-core control that may verify a number of available threads according to an application program and dynamically parallelize data based on the verified number of available threads. The method and system for dynamically parallelizing the application program may divide a data block to be processed according to the application program based on a relevant data characteristic and dynamically map the threads to division blocks, and thereby enhance a system performance.
    Type: Application
    Filed: July 22, 2013
    Publication date: November 21, 2013
    Applicants: UNIVERSITY OF SOUTHERN CALIFORNIA, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Won Lee, Shi Hwa Lee, Dong-In Kang, Mikyung Kang
  • IMAGE PROCESSING APPARATUS AND METHOD
    Publication number: 20130293543
    Abstract: An image processing apparatus. A rendering unit of the image processing apparatus may perform rendering with respect to each of N passes by applying a multi-pass rendering process with respect to an object in an image. The image processing apparatus may include a texture buffer to store information about at least one pixel using second pass rendering different from first pass rendering, while performing the first pass rendering corresponding to a process of generating a final result image among the N passes.
    Type: Application
    Filed: March 11, 2013
    Publication date: November 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Kyu JEONG, Jae Don Lee, Kwon Taek Kwon, Seung Won Lee, Shi Hwa Lee
  • APPARATUS AND METHOD WITH ENHANCEMENT OF SOUND QUALITY
    Publication number: 20130272529
    Abstract: An audio processing apparatus and method are provided. The audio processing apparatus includes an envelope detector to detect an envelope of an input signal with respect to a low frequency band, and a signal restorer to restore the input signal including a high frequency band by performing frequency folding of frequency sub-band according the envelope.
    Type: Application
    Filed: April 4, 2013
    Publication date: October 17, 2013
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kang Eun LEE, Do Hyung Kim, Shi Hwa Lee
  • System and method for dynamically managing tasks for data parallel processing on multi-core system
    Patent number: 8555289
    Abstract: A dynamic task management system and method for data parallel processing on a multi-core system are provided. The dynamic task management system may generate a registration signal for a task to be parallel processed, may generate a dynamic management signal used to dynamically manage at least one task, in response to the generated registration signal, and may control the at least one task to be created or cancelled in at least one core in response to the generated dynamic management signal.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: October 8, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Young Son, Shi Hwa Lee, Seung Won Lee, Jeong Joon Yoo, Jae Don Lee, Young Sam Shin
  • METHOD AND APPARATUS FOR DEBLURRING NON-UNIFORM MOTION BLUR USING MULTI-FRAME INCLUDING BLURRED IMAGE AND NOISE IMAGE
    Publication number: 20130243346
    Abstract: A method and apparatus for deblurring a non-uniform motion blur using a multi-frame including a blurred image and a noise image is provided. The apparatus may provide a clearer image by estimating non-uniform motion blur information of the blurred image using the multi-frame, and performing estimation of the non-uniform motion blur information and obtaining of a latent image iteratively, thereby improving accuracy for estimating the non-uniform motion blur information, and reducing a processing time.
    Type: Application
    Filed: November 12, 2012
    Publication date: September 19, 2013
    Applicants: Postech Academy-Industry Foundation, Samsung Electronics Co., Ltd.
    Inventors: Jung Uk Cho, Seung Yong Lee, Young Su Moon, Shi Hwa Lee, Chi Young Lee, Sung Hyun Cho, Ho Jin Cho
  • APPARATUS AND METHOD FOR EXECUTING MULTI-OPERATING SYSTEMS
    Publication number: 20130247065
    Abstract: An apparatus and method for executing multi-operating systems (OS) are provided. Resources allocated to the respective multi-OSs are managed by management applications of the multi-OSs. A processor executes a plurality of multi-OSs. Each of the plurality of multi-OSs executes the management application. Each of the plurality of multi-OSs regards a resource held by another multi-OS among the plurality of multi-OSs as used by the corresponding management application, thereby preventing the resource from being allocated to another application included in the multi-OS.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Won Lee, Yong Sam Shin, Shi Hwa Lee
  • METHOD AND APPARATUS FOR DEBLURRING NON-UNIFORM MOTION BLUR IN LARGE SCALE INPUT IMAGE BASED ON TILE UNIT
    Publication number: 20130243319
    Abstract: Provided is a method and apparatus for deblurring a non-uniform motion blur in an input image, that may restore a clearer image by dividing a large scale input image into tiles corresponding to partial areas, selecting, among the divided tiles, an optimal tile for a partial area most suitable for estimating non-uniform motion blur information, and effectively removing an artifact in an outer portion of a tile through padding of each tile.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 19, 2013
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung Uk Cho, Seung Yong Lee, Young Su Moon, Shi Hwa Lee, Chi Young Lee, Sung Hyun Cho, Ho Jin Cho
  • APPARATUS AND METHOD FOR ELECTRONIC SIGNATURE VERIFICATION
    Publication number: 20130246797
    Abstract: An apparatus for electronic signature verification, including a grouping unit to group, into at least one group, a plurality of kernels included in an application to which electronic signature verification is to be performed, and an electronic signature verification unit to perform electronic signature verification with respect to the at least one group.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Kyu JEONG, Yong Sam SHIN, Seung Won LEE, Shi Hwa LEE
  • IMAGE PROCESSING APPARATUS AND METHOD
    Publication number: 20130242039
    Abstract: Provided is an apparatus and method for generating a three-dimensional (3D) panoramic image using a single camera. The image processing apparatus may generate a two-dimensional (2D) reference panoramic image using a central area of each of a plurality of input image frames, and may extract a left-eye strip and a right-eye strip of when a similarity calculated in the plurality of input image frames based on the 2D reference panoramic image has a maximum value.
    Type: Application
    Filed: February 7, 2013
    Publication date: September 19, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joon Hyuk CHA, Young Su Moon, Young Sun Jeon, Shi Hwa Lee
  • METHOD AND APPARATUS FOR ROBUST ESTIMATION OF NON-UNIFORM MOTION BLUR
    Publication number: 20130236114
    Abstract: A method and apparatus for robust estimation of a non-uniform motion blur that may reduce an amount of the non-uniform motion blur information, that is, a number of homographies by estimating non-uniform motion blur information about a blur in a predetermined area, thereby reducing an amount of time needed to remove the non-uniform motion blur, and may improve accuracy and stability of the non-uniform motion blur information by estimating homographies for an input image while increasing a number of the homographies, iteratively.
    Type: Application
    Filed: November 6, 2012
    Publication date: September 12, 2013
    Applicants: Postech Academy-Industry Foundation, Samsung Electronics Co., Ltd.
    Inventors: Jung Uk CHO, Seung Yong Lee, Young Su Moon, Shi Hwa Lee, Chi Young Lee, Sung Hyun Cho, Ho Jin Cho
  • APPARATUS AND METHOD FOR DECODING
    Publication number: 20130229292
    Abstract: A decoding apparatus and method store at least one table including at least one code, receive at least one instruction signal, and extract a symbol value and a symbol length from the at least one table based on the at least one instruction signal. The decoding apparatus calculates a target suffix length that minimizes the size of a generated table and minimizes the size of a non-prefix length of the at least one code.
    Type: Application
    Filed: August 15, 2012
    Publication date: September 5, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doo Hyun KIM, Do Hyung Kim, Shi Hwa Lee
  • ENCODING/DECODING APPARATUS AND METHOD FOR PARALLEL CORRECTION OF IN-LOOP PIXELS BASED ON MEASURED COMPLEXITY, USING VIDEO PARAMETER
    Publication number: 20130215976
    Abstract: An encoding/decoding apparatus and method for parallel correction of in-loop pixels based on complexity using a video parameter may include a complexity measuring unit to measure a complexity of an in-loop pixel correction process, using video codec parameter information, in a video codec, and a core allocating unit to evenly distribute jobs associated with the in-loop pixel correction process, using the measured complexity.
    Type: Application
    Filed: September 7, 2012
    Publication date: August 22, 2013
    Applicants: Kwangwoon University Industry-Academic Collaboration Foundation, Samsung Electronics Co., Ltd.
    Inventors: Doo Hyun KIM, Dong Gyu Sim, Joon Ho Song, Do Hyung Kim, Eun Kyung Ryu, Shi Hwa Lee, Hyun Ho Cho, Jung Han Seo
  • DEBLOCKING FILTERING APPARATUS AND METHOD BASED ON RASTER SCANNING
    Publication number: 20130202048
    Abstract: A deblocking filtering apparatus and method based on raster scanning is provided. The deblocking filtering apparatus may include a boundary determining unit to determine whether at least one of a vertical edge boundary and a horizontal edge boundary of a block corresponds to at least one of a coding unit (CU) boundary, a transform unit (TU) boundary, and a prediction unit (PU) boundary, a boundary strength (BS) computing unit to compute a BS value for at least one of the vertical edge boundary and the horizontal edge boundary when at least one of the vertical edge boundary and the horizontal edge boundary of the block corresponds to at least one of the CU boundary, the TU boundary, and the PU boundary as a result of the determining, and a filtering performing unit to perform deblocking filtering on at least one of the vertical edge boundary and the horizontal edge boundary.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 8, 2013
    Applicants: KWANGWOON UNIVERSITY INDUSTRY- ACADEMIC COLLABORATION FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Doo Hyun KIM, Donggyu Sim, Do Hyung Kim, Joon Ho Song, Eun Kyung Ryu, Shi Hwa Lee, Hyun Ho Jo, Jeong Han Seo
  • Apparatus and method for adjusting automatic white balance by detecting effective area
    Patent number: 8482630
    Abstract: An automatic white balance adjusting apparatus and method based on detection of an effective area. The automatic white balance adjusting apparatus may detect the effective area by using a color temperature, a luminance, and a correlation, and may adjust a white balance with respect to the detected effective area.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: July 9, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Sun Jeon, Ho Jin Lee, Young Su Moon, Shi Hwa Lee
  • Image interpolation method and apparatus using reference block based on direction
    Patent number: 8442359
    Abstract: Provided is an image interpolation method and apparatus using a reference block depending on a direction. The image interpolation method may generate a horizontal reference block and a vertical reference block each with respect to an inputted image, and determine interpolation directivity with respect to the inputted image using the generated horizontal reference block and vertical reference block, thereby performing an interpolation on an image based on accurate interpolation directivity. In particular, the image interpolation method may determine whether to verify interpolation directivity depending on an edge intensity of an inputted image, thereby performing a color filter array (CFA) interpolation on an image based on an edge direction without determining the interpolation directivity, when the edge intensity is strong.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: May 14, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho Jin Lee, Young Su Moon, Shi Hwa Lee
  • VIRTUAL ARCHITECTURE GENERATING APPARATUS AND METHOD, AND RUNTIME SYSTEM, MULTI-CORE SYSTEM AND METHODS OF OPERATING RUNTIME SYSTEM AND MULTI-CORE SYSTEM
    Publication number: 20130111472
    Abstract: A virtual architecture generating apparatus and method, a runtime system, a multi-core system, and methods of operating the runtime system and the multi-core system may include analyzing a requirement of an application, a feature of the application, and a requirement of a system enabling an execution of the application, and include generating a virtual architecture corresponding to the application, based on a physical architecture of a reconfigurable processor, the analyzed requirements and the analyzed feature.
    Type: Application
    Filed: April 3, 2012
    Publication date: May 2, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Young SON, Shi Hwa Lee, Seung Won Lee, Jeong Joon Yoo, Jae Don Lee, Young Sam Shin, Hee Jin Ahn
  • APPARATUS AND METHOD OF REPRODUCING AUDIO DATA USING LOW POWER
    Publication number: 20130103392
    Abstract: A method and apparatus for reproducing audio data using low power are provided. The apparatus may reproduce the audio data by determining a power mode based on a memory resource of an internal memory, and an amount of a memory required for reproducing the audio data, controlling a power based on the determined power mode, and decoding the audio data.
    Type: Application
    Filed: August 13, 2012
    Publication date: April 25, 2013
    Applicant: Samsung Electronics CO., LTD.
    Inventors: Chang Yong SON, Kang Eun LEE, Do Hyung KIM, Shi Hwa LEE