Patents by Inventor Yiduo Li

Yiduo Li 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: 12276731
    Abstract: Provided are a method of individual tree crown segmentation from airborne LiDAR data using a novel Gaussian filter and energy function minimization. First, a dual Gaussian filter was designed with automated adaptive parameter assignment and a screening strategy for false treetops. This preserved the geometric characteristics of sub-canopy trees while eliminating false treetops. Second, anisotropic water expansion controlled by the energy function was applied to accurate crown segmentation. This utilized gradient information from the digital surface model and explored the morphological structures of tree crown boundaries as analogous to the maximal valley height difference from surrounding treetops. We demonstrate the generality of our approach using seven diverse plots in the subtropical Gaofeng Forest, China, coupled with ground verification.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: April 15, 2025
    Assignee: NANJING MAOTING INFORMATION TECHNOLOGY CO., LTD.
    Inventors: Ting Yun, Kang Jiang, Guangchao Li, Yiduo Li, Lin Cao
  • Publication number: 20230350065
    Abstract: Provided are a method of individual tree crown segmentation from airborne LiDAR data using a novel Gaussian filter and energy function minimization. First, a dual Gaussian filter was designed with automated adaptive parameter assignment and a screening strategy for false treetops. This preserved the geometric characteristics of sub-canopy trees while eliminating false treetops. Second, anisotropic water expansion controlled by the energy function was applied to accurate crown segmentation. This utilized gradient information from the digital surface model and explored the morphological structures of tree crown boundaries as analogous to the maximal valley height difference from surrounding treetops. We demonstrate the generality of our approach using seven diverse plots in the subtropical Gaofeng Forest, China, coupled with ground verification.
    Type: Application
    Filed: September 30, 2020
    Publication date: November 2, 2023
    Inventors: Ting YUN, Kang JIANG, Guangchao LI, Yiduo LI, Lin CAO
  • Patent number: 8974200
    Abstract: An apparatus and method are disclosed for inducing fluid flow. A fluid flow apparatus includes a directional membrane, a directional flow mechanism, and an oscillation module. The directional membrane allows a fluid to pass through the directional membrane in a first direction and resists fluid passing through the directional membrane in a second direction, the first direction substantially opposite the second direction. The directional flow mechanism allows a fluid to flow in a third direction and resists fluid flow in a fourth direction, the third direction substantially opposite the fourth direction. The oscillation module induces an oscillation in the directional membrane, wherein the oscillation of the directional membrane induces a flow of the fluid through the directional membrane in the first direction.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: March 10, 2015
    Assignee: International Business Machines Corporation
    Inventors: Johan Junior Chan, Yiduo Li, Wei Chih Pan, Andrew Yong Liang Soon Ng, James Sai Cheong Tam
  • Publication number: 20130008545
    Abstract: An apparatus and method are disclosed for inducing fluid flow. A fluid flow apparatus includes a directional membrane, a directional flow mechanism, and an oscillation module. The directional membrane allows a fluid to pass through the directional membrane in a first direction and resists fluid passing through the directional membrane in a second direction, the first direction substantially opposite the second direction. The directional flow mechanism allows a fluid to flow in a third direction and resists fluid flow in a fourth direction, the third direction substantially opposite the fourth direction. The oscillation module induces an oscillation in the directional membrane, wherein the oscillation of the directional membrane induces a flow of the fluid through the directional membrane in the first direction.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Johan Junior Chan, Yiduo Li, Wei Chih Pan, Andrew Yong Liang Soon Ng, James Sai Cheong Tam