Patents by Inventor Huahua ZHANG

Huahua ZHANG 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: 10554882
    Abstract: The present application discloses a panoramic camera and a shooting method thereof, the panoramic camera includes: N sub-cameras, a synchronization control module, a stitching and correcting module, configured for caching successive m rows of pixel values in the shot image in a sliding window manner, and correcting the pixel values according to a preset correction table and the cached m-row pixel values, and sequentially outputting the corrected pixel values of each row, wherein m is greater than the sum of a preset maximum number of distortion rows and 2, and m is smaller than the total number of rows of the shot image; a stitching fusion module, configured for stitching the corrected images into a stitched image according to the overlapping portions of the images shot by the sub-cameras, wherein the images are shot synchronously by the sub-cameras under the control of the synchronization control module; and a transmission module.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 4, 2020
    Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD.
    Inventors: Huahua Zhang, Xiaojiang Wang, Changzhi Ke
  • Publication number: 20190335099
    Abstract: The present application discloses a panoramic camera and a shooting method thereof, the panoramic camera includes: N sub-cameras, a synchronization control module, a stitching and correcting module, configured for caching successive m rows of pixel values in the shot image in a sliding window manner, and correcting the pixel values according to a preset correction table and the cached m-row pixel values, and sequentially outputting the corrected pixel values of each row, wherein m is greater than the sum of a preset maximum number of distortion rows and 2, and m is smaller than the total number of rows of the shot image; a stitching fusion module, configured for stitching the corrected images into a stitched image according to the overlapping portions of the images shot by the sub-cameras, wherein the images are shot synchronously by the sub-cameras under the control of the synchronization control module; and a transmission module.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 31, 2019
    Inventors: Huahua ZHANG, Xiaojiang WANG, Changzhi KE
  • Patent number: 9854193
    Abstract: A high definition (HD) camera and a method for implementing the HD camera is described. A CMOS sensor of high frame rate captures frame images and provides light to N consecutive frame images with an interval of M consecutive frame images in the captured frame images using an auxiliary light source when the auxiliary light source is on. The auxiliary light source turns on and off according to a duty cycle. The M is 0 or a positive integer. The N is a positive integer. The mechanism has good light performances, reduced deformation of moving objects, and reduced costs.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: December 26, 2017
    Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventor: Huahua Zhang
  • Publication number: 20160080673
    Abstract: A high definition (HD) camera and a method for implementing the HD camera is described. A CMOS sensor of high frame rate captures frame images and provides light to N consecutive frame images with an interval of M consecutive frame images in the captured frame images using an auxiliary light source when the auxiliary light source is on. The auxiliary light source turns on and off according to a duty cycle. The M is 0 or a positive integer. The N is a positive integer. The mechanism has good light performances, reduced deformation of moving objects, and reduced costs.
    Type: Application
    Filed: November 25, 2015
    Publication date: March 17, 2016
    Inventor: Huahua ZHANG