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).

  • Patent number: 9053521
    Abstract: An image processing apparatus is provided. The image processing apparatus for image signal processor (ISP) realization may include a Static Random Access Memory (SRAM) for each function module. A unified SRAM to store at least one line data of an input image for each of a plurality of functions modules within the image processing apparatus is further provided.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Sun Jeon, Ho Jin Lee, Joon Hyuk Cha, Shi Hwa Lee, Young Su Moon, Hyun Sang Park
  • Publication number: 20150156493
    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: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik KIM, Dae-sung Cho, Shi-hwa Lee, Sang-wook Kim
  • Patent number: 9047180
    Abstract: Disclosed are a system, method and computer-readable medium related to processing debug information from an embedded system. Source code of an application program to be used in an embedded system may be compiled by a computing system. The application program may include a debug code line. A minimum amount of debug information is stored in an embedded system, reducing memory overhead and waste of clock cycles of a processor.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 2, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Don Lee, Shi Hwa Lee, Seung Won Lee, Chae Seok Im, Min Kyu Jeong
  • Patent number: 9047138
    Abstract: Provided is a method and apparatus for ensuring a deterministic execution characteristic of an application program to perform data processing and execute particular functions in a computing environment using a micro architecture. A lock controlling apparatus based on a deterministic progress index (DPI) may include a loading unit to load a DPI of a first core and a DPI of a second core among DPIs of a plurality of cores at a lock acquisition point in time of each thread, a comparison unit to compare the DPI of the first core and the DPI of the second core, and a controller to assign a lock to a thread of the first core when the DPI of the first core is less than the DPI of the second core and when the second core corresponds to a last core to be compared among the plurality of cores.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: June 2, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Sam Shin, Seung Won Lee, Min Young Son, Shi Hwa Lee
  • Patent number: 9042673
    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: Grant
    Filed: March 11, 2013
    Date of Patent: May 26, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION POHANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Jung Uk Cho, Seung Yong Lee, Young Su Moon, Shi Hwa Lee, Chi Young Lee, Sung Hyun Cho, Ho Jin Cho
  • Patent number: 9021430
    Abstract: A method and apparatus for authoring an architecture for transforming a single-core based embedded software application to a multi-core based embedded software application, and a method of determining an architectural pattern in a multimedia system. It is possible to perform an architecture authoring operation by using an architectural decision supporter, without prior knowledge and accumulated knowledge regarding a software architecture. Additionally, it is possible to prevent an error from occurring during authoring of an architecture, by using a concurrency-related software architectural pattern that is already evaluated. Thus, it is possible to improve overall quality of software, and to reduce a development time.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 28, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Sogang University
    Inventors: Soo Yong Park, Seung Won Lee, Shi Hwa Lee, Soo Jin Park
  • Patent number: 9014259
    Abstract: An apparatus and method sequentially parses bitstreams based on a removal of an Emulation Prevention Byte (EPB). The apparatus and method may detect an EPB pattern from among sequentially input bitstreams, may store the bitstreams, may store a processed bitstream where the EPB pattern is removed, among the bitstreams, and may select an output of a register buffer based on an input of a buffer selection flag.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 21, 2015
    Assignees: Samsung Electronics Co., Ltd., Kwangwoon University Industry-Academic Collaboration Foundation
    Inventors: Donggyu Sim, Doo Hyun Kim, Joon Ho Song, Shi Hwa Lee, Do Hyung Kim, Hyun Ho Cho, Jin Sub Lee, Jeong Han Seo
  • Patent number: 9008185
    Abstract: Disclosed are an apparatus and method of lossless compression and restoration of selective image information. The apparatus of lossless compression of selective image information may compress an uncompressed block image of image information without loss to convert the uncompressed block image into a compressed block image, and store the converted compressed block image.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: April 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon Ho Song, Shi Hwa Lee
  • Patent number: 8995781
    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: Grant
    Filed: November 12, 2012
    Date of Patent: March 31, 2015
    Assignees: Samsung Electronics Co., Ltd., Postech Academy-Industry Foundation
    Inventors: Jung Uk Cho, Seung Yong Lee, Young Su Moon, Shi Hwa Lee, Chi Young Lee, Sung Hyun Cho, Ho Jin Cho
  • Patent number: 8989484
    Abstract: An apparatus and method for generating a High Dynamic Range (HDR) image from which a ghost blur is removed based on a multi-exposure fusion. The apparatus may include an HDR weight map calculation unit to calculate an HDR weight map for multiple exposure frames that are received, a ghost probability calculation unit to calculate a ghost probability for each image by verifying a ghost blur for the multiple exposure frames, an HDR weight map updating unit to update the calculated HDR weight map based on the calculated ghost probability, and a multi-scale blending unit to generate an HDR image by reflecting the updated HDR weight map to the multiple exposure frames.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Su Moon, Yong Min Tai, Jung Uk Cho, Shi Hwa Lee
  • Patent number: 8990575
    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: Grant
    Filed: February 25, 2013
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Kyu Jeong, Yong Sam Shin, Seung Won Lee, Shi Hwa Lee
  • Patent number: 8971410
    Abstract: A method of processing frames obtained by multiple exposures may include categorizing, by at least one processor, a plurality of frames captured by multiple exposures into one of a reference frame and a target frame, compensating for global motion resulting from motion of a capturing apparatus capturing an object, and compensating for local motion resulting from motion of the object, based on a joint histogram between the reference frame and the target frame.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 3, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Kyoung Mu Lee, Young Su Moon, Yong Seok Heo, Joon Hyuk Cha, Shi Hwa Lee
  • Publication number: 20150043654
    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: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik Kim, Dae-sung Cho, Shi-hwa Lee, Sang-wook Kim
  • Patent number: 8952962
    Abstract: Provided is a graphics processing method and apparatus using a post fragment shader. A rendering pipeline of the graphics processing apparatus may include a fragment shader that operates before a raster operator, and a post fragment shader that operates after the raster operator. Each of the fragment shader and the post fragment shader may apply a different effect to each of a plurality of fragments.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Jin Son, Seok Yoon Jung, Shi Hwa Lee, Sang Oak Woo
  • Patent number: 8948268
    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: May 18, 2010
    Date of Patent: February 3, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-shik Kim, Dae-sung Cho, Shi-hwa Lee, Sang-wook Kim
  • Patent number: 8948528
    Abstract: A method and apparatus for restoring an image by copying a memory may include determining whether to perform an interpolation operation based on block information, and restoring a current image using a reference image depending on whether to perform the interpolation operation.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 3, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-Academia Cooperation Group of Sejong University
    Inventors: Jin Soo Cho, Gi Ho Park, Won Chang Lee, Shi Hwa Lee, Do Hyung Kim, Joon Ho Song
  • Patent number: 8943503
    Abstract: Provided is a method and apparatus for measuring a performance or a progress state of an application program to perform data processing and execute particular functions in a computing environment using a micro architecture. A thread progress tracking apparatus may include a selector to select at least one thread constituting an application program; a determination unit to determine, based on a predetermined criterion, whether an instruction execution scheme corresponds to a deterministic execution scheme having a regular cycle or a nondeterministic execution scheme having an irregular delay cycle with respect to each of at least one instruction constituting a corresponding thread; and a deterministic progress counter to generate a deterministic progress index with respect to an instruction that is executed by the deterministic execution scheme, excluding an instruction that is executed by the nondeterministic execution scheme.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: January 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Sam Shin, Seung Won Lee, Shi Hwa Lee, Suk Jin Kim, Min Young Son
  • Patent number: 8942509
    Abstract: An apparatus and method creating a ghost-free High Dynamic Range Image (HDRI) based on filtering are provided. It is possible to effectively prevent a ghost phenomenon from occurring when a single HDRI is created from a plurality of LDRIs, by defining a ghost area using a probability based on a global transfer function indicating a relationship for intensities of several frames, rather than searching for or identifying a ghost area in a single or each image.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: January 27, 2015
    Assignees: Samsung Electronics Co., Ltd., SNU R&DB Foundation
    Inventors: Joon Hyuk Cha, Kyoung Mu Lee, Yong Seok Heo, Young Su Moon, Sang Uk Lee, Shi Hwa Lee
  • Patent number: 8937624
    Abstract: A memory access address translating apparatus and method may each classify pixels included in an input image into a plurality of tiles, and may generate a new memory for each of the successive tiles to enable the successive tiles, among a plurality of tiles, to be stored in different banks.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 20, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-Academia Cooperation Group of Sejong University
    Inventors: Gi Ho Park, Won Chang Lee, Shi Hwa Lee, Do Hyung Kim, Joon Ho Song, Sung Uk Jeong
  • Patent number: 8930436
    Abstract: Provided is an apparatus and method of dynamically distributing load occurring in multiple cores that may determine a corresponding core to perform functions constituting an application program, thereby enhancing the entire processing rate.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: January 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min Soo Kim, Shi Hwa Lee, Do Hyung Kim, Joon Ho Song, Sang Jo Lee, Won Chang Lee, Doo Hyun Kim