Patents by Inventor Hengzhi Zhang

Hengzhi 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: 12277645
    Abstract: A method and an apparatus for constructing a three-dimensional channel, and a non-transitory computer-readable recording medium are provided. In the method, a depth image corresponding to a first panoramic image is generated. Then, channel object detection is performed on the first panoramic image to obtain channel object boxes in the first panoramic image. Each of the channel object boxes is four annularly interconnected arc-shaped sides, and each of the arc-shaped sides is a circular arc of a great circle. Then, a three-dimensional point cloud of a channel object in the first panoramic image is generated based on the first panoramic image, the channel object boxes and the depth image.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: April 15, 2025
    Assignee: Ricoh Company, Ltd.
    Inventors: Hong Yi, Haijing Jia, Hengzhi Zhang, Liyan Liu, Wei Wang
  • Publication number: 20240303909
    Abstract: An image processing method and an image processing apparatus are provided. The image processing method includes obtaining a panoramic image to which a room corresponds; performing door detection on the panoramic image to determine first information related to at least one door in the room; and displaying, based on the first information, a panoramic identifier of the at least one door in the panoramic image, the panoramic identifier indicating at least a door outline, a door type and an opening type of the door.
    Type: Application
    Filed: March 1, 2024
    Publication date: September 12, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Hong YI, Haijing JIA, Hengzhi ZHANG, Liyan LIU, Weitao GONG
  • Publication number: 20230230316
    Abstract: A method and an apparatus for constructing a three-dimensional channel, and a non-transitory computer-readable recording medium are provided. In the method, a depth image corresponding to a first panoramic image is generated. Then, channel object detection is performed on the first panoramic image to obtain channel object boxes in the first panoramic image. Each of the channel object boxes is four annularly interconnected arc-shaped sides, and each of the arc-shaped sides is a circular arc of a great circle. Then, a three-dimensional point cloud of a channel object in the first panoramic image is generated based on the first panoramic image, the channel object boxes and the depth image.
    Type: Application
    Filed: January 17, 2023
    Publication date: July 20, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Hong YI, Haijing Jia, Hengzhi Zhang, Liyan Liu, Wei Wang