Patents by Inventor Han-Jen Hsu

Han-Jen Hsu 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: 8665378
    Abstract: A filter for a video stream is provided. The filter generates a filtered picture according to a current picture and its previous picture. A motion difference calculator accumulates differences between current picture values and previous picture values within a neighborhood of each pixel to provide a corresponding motion difference. A histogram counter performs histogram counting according to motion differences of the pixels. A filter value calculator provides a filter value for each pixel according to operations of the motion difference calculator and the histogram counter. A blender blends the current picture value and the previous picture value of each pixel according to weightings correlated to the filter value, and provides a filtered picture value for each pixel of the filtered picture.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 4, 2014
    Assignee: MStar Semiconductor, Inc.
    Inventors: Han-Jen Hsu, Wei-Kuo Lee
  • Publication number: 20120257113
    Abstract: A filter for a video stream is provided. The filter generates a filtered picture according to a current picture and its previous picture. A motion difference calculator accumulates differences between current picture values and previous picture values within a neighborhood of each pixel to provide a corresponding motion difference. A histogram counter performs histogram counting according to motion differences of the pixels. A filter value calculator provides a filter value for each pixel according to operations of the motion difference calculator and the histogram counter. A blender blends the current picture value and the previous picture value of each pixel according to weightings correlated to the filter value, and provides a filtered picture value for each pixel of the filtered picture.
    Type: Application
    Filed: September 23, 2011
    Publication date: October 11, 2012
    Applicant: MSTAR SEMICONDUCTOR, INC.
    Inventors: Han-Jen Hsu, Wei-Kuo Lee
  • Patent number: 8259818
    Abstract: A deblocking apparatus is provided. The deblocking apparatus includes a filter, a blocking detection module and a blending unit. The filter receives a target pixel of a pixel matrix to generate a filtered target pixel. The blocking detection module generates a deblocking intensity factor according to the pixel matrix. The blending unit receives the target pixel and the filtered target pixel, and dynamically blends the target pixel and the filtered target pixel to output an output pixel according to the deblocking intensity factor.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: September 4, 2012
    Assignee: Mstar Semiconductor, Inc.
    Inventors: Han-Jen Hsu, Wei-Kuo Lee
  • Publication number: 20110013704
    Abstract: A deblocking apparatus is provided. The deblocking apparatus includes a filter, a blocking detection module and a blending unit. The filter receives a target pixel of a pixel matrix to generate a filtered target pixel. The blocking detection module generates a deblocking intensity factor according to the pixel matrix. The blending unit receives the target pixel and the filtered target pixel, and dynamically blends the target pixel and the filtered target pixel to output an output pixel according to the deblocking intensity factor.
    Type: Application
    Filed: October 21, 2009
    Publication date: January 20, 2011
    Applicant: MStar Semiconductor, Inc.
    Inventors: Han-Jen Hsu, Wei-Kuo Lee
  • Patent number: 7418131
    Abstract: An image-capturing device and method for removing strangers from an image are described. First, a first image is input. Then, a control module determines if an unwanted object processing step is needed, and obtains a result. If the result is no, the first image is directly sent to an output module. If the result is yes, an image-identifying module begins to identify the target-image and the unwanted object in the first image, and then, an unwanted object processing module starts the step to process unwanted images. The unwanted object processing step can remove the unwanted object from an image and fill the left lacuna region. Afterwards, a second image is produced and sent to the output module.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: August 26, 2008
    Assignee: National Cheng Kung University
    Inventors: Jhing-Fa Wang, Han-Jen Hsu, Shang-Chia Liao
  • Publication number: 20060045372
    Abstract: An image-capturing device and method for removing strangers from an image are described. First, a first image is input. Then, a control module determines if an unwanted object processing step is needed, and obtains a result. If the result is no, the first image is directly sent to an output module. If the result is yes, an image-identifying module begins to identify the target-image and the unwanted object in the first image, and then, an unwanted object processing module starts the step to process unwanted images. The unwanted object processing step can remove the unwanted object from an image and fill the left lacuna region. Afterwards, a second image is produced and sent to the output module.
    Type: Application
    Filed: July 6, 2005
    Publication date: March 2, 2006
    Applicant: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Jhing-Fa Wang, Han-Jen Hsu, Shang-Chia Liao