Patents by Inventor Hanwen Chang

Hanwen Chang 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: 10713470
    Abstract: The present disclosure provides a method and an apparatus of determining an image background, a device and a medium. The method includes: recognizing a face region in an image, and obtaining a face distance based on the face region; obtaining a face distance parameter of each pixel in the image based on the face distance; processing the face distance parameter and corresponding color parameter of each pixel in the image by applying a pre-trained image region segmentation model to determine an image region type corresponding to each pixel; determining a background region of the image based on the image region type corresponding to each pixel and performing preset background image processing on the background region.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: July 14, 2020
    Assignee: BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO., LTD.
    Inventor: Hanwen Chang
  • Publication number: 20190102604
    Abstract: The present disclosure provides a method and an apparatus of determining an image background, a device and a medium. The method includes: recognizing a face region in an image, and obtaining a face distance based on the face region; obtaining a face distance parameter of each pixel in the image based on the face distance; processing the face distance parameter and corresponding color parameter of each pixel in the image by applying a pre-trained image region segmentation model to determine an image region type corresponding to each pixel; determining a background region of the image based on the image region type corresponding to each pixel and performing preset background image processing on the background region.
    Type: Application
    Filed: August 22, 2018
    Publication date: April 4, 2019
    Applicant: BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO., LTD.
    Inventor: Hanwen Chang
  • Patent number: 10021276
    Abstract: Embodiments of the present disclosure provide a method and a device for processing a video, an electronic device and a storage medium. The method includes the followings. A target recognition is performed to A first video segments and B first speech segments to obtain M second video segments and N second speech segments. A speech processing is performed to the N second speech segments to obtain N target speech text files. First representation information is extracted from the M second video segments to obtain Q pieces of first representation information. A second sound matched with the target character is determined according to the Q pieces of first representation information. The second sound is merged with the N target speech text files to obtain N target speech segments.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: July 10, 2018
    Assignee: BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO., LTD.
    Inventor: Hanwen Chang
  • Patent number: 8423544
    Abstract: Hotspot analysis systems and methods are provided. The hotspot analysis system includes a database, a filtering module, a clustering module, and an analysis module. The database includes a plurality of records, each including context information having at least time information and position information. The filtering module filters the records according to current context information to obtain a plurality of filtered records. The clustering module clusters the filtered records into at least one hotspot cluster according to the position information of the filtered records, and generates a hotspot area for each hotspot cluster. The analysis module calculates integral hotness for each hotspot cluster according to the number of the filtered records in the hotspot cluster and the size of the hotspot area of the hotspot cluster, and generates at least hotspot area information according to the integral hotness and the hotspot area of each hotspot cluster.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: April 16, 2013
    Assignee: Institute for Information Industry
    Inventors: Jacob Guo, Hanwen Chang, Yu-Chin Tai, Hsiaowei Chen, Jane Yung-jen Hsu
  • Publication number: 20100257168
    Abstract: Hotspot analysis systems and methods are provided. The hotspot analysis system includes a database, a filtering module, a clustering module, and an analysis module. The database includes a plurality of records, each including context information having at least time information and position information. The filtering module filters the records according to current context information to obtain a plurality of filtered records. The clustering module clusters the filtered records into at least one hotspot cluster according to the position information of the filtered records, and generates a hotspot area for each hotspot cluster. The analysis module calculates integral hotness for each hotspot cluster according to the number of the filtered records in the hotspot cluster and the size of the hotspot area of the hotspot cluster, and generates at least hotspot area information according to the integral hotness and the hotspot area of each hotspot cluster.
    Type: Application
    Filed: June 26, 2009
    Publication date: October 7, 2010
    Inventors: Jacob GUO, Hanwen Chang, Yu-Chin Tai, Hsiaowei Chen, Jane Yung-jen Hsu