Patents by Inventor Chenkai CAI

Chenkai CAI 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).

  • Run-length stripping method for generating skeleton lines of complex plain river networks
    Patent number: 12211126
    Abstract: The application relates to a run-length stripping method for generating skeleton lines of complex plain river networks, including following steps: 1. constructing an empty raster field, each raster row generates an empty run-length linked list; 2. completing raster compression on each row, and compressing the continuous grids into run-length units and inserting them into the raster row run-length linked list; 3. establishing a raster field river boundary grid search template; 4. setting two discriminant functions to judge whether a grid on a raster field is a redundant grid; 5. searching all boundary grids along a raster field boundary, and marking and stripping all redundant grids based on two discriminant functions respectively; 6. analyzing whether the boundary grid is stripped, if so, returning to continue stripping, otherwise, entering the next step; 7. converting the non-stripped grid into skeleton line data in vector form.
    Type: Grant
    Filed: April 18, 2024
    Date of Patent: January 28, 2025
    Assignee: Zhejiang Institute of Hydraulics & Estuary (Zhejiang Institute of Marine Planning and Design)
    Inventors: Jinhua Wen, Caijie Yang, Helong Wang, Yimin Qian, Longqiang Su, Qifeng Li, Caiming Chen, Chenkai Cai
  • INITIAL ALLOCATION OPTIMIZATION METHOD OF WATER RIGHTS BASED ON REGRET THEORY
    Publication number: 20240354873
    Abstract: The disclosure relates to a water resource planning method. An objective is to provide an initial allocation optimization method of water rights based on regret theory.
    Type: Application
    Filed: April 5, 2024
    Publication date: October 24, 2024
    Inventors: Caijie YANG, Chenkai CAI, Helong WANG, Jinhua WEN, Qifeng LI
  • RUN-LENGTH STRIPPING METHOD FOR GENERATING SKELETON LINES OF COMPLEX PLAIN RIVER NETWORKS
    Publication number: 20240355015
    Abstract: The application relates to a run-length stripping method for generating skeleton lines of complex plain river networks, including following steps: 1. constructing an empty raster field, each raster row generates an empty run-length linked list; 2. completing raster compression on each row, and compressing the continuous grids into run-length units and inserting them into the raster row run-length linked list; 3. establishing a raster field river boundary grid search template; 4. setting two discriminant functions to judge whether a grid on a raster field is a redundant grid; 5. searching all boundary grids along a raster field boundary, and marking and stripping all redundant grids based on two discriminant functions respectively; 6. analyzing whether the boundary grid is stripped, if so, returning to continue stripping, otherwise, entering the next step; 7. converting the non-stripped grid into skeleton line data in vector form.
    Type: Application
    Filed: April 18, 2024
    Publication date: October 24, 2024
    Inventors: Jinhua WEN, Caijie YANG, Helong WANG, Yimin QIAN, Longqiang SU, Qifeng LI, Caiming CHEN, Chenkai CAI