Patents by Inventor Siqing Zhang

Siqing 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: 12094200
    Abstract: The monitoring method for wheat kernel moisture content in-field based on PlanetScope satellite imagery in this disclosure comprises: (1) data collection and database establishment; (2) feature engineering: constructing various broad-band indices on the original bands provided by PlanetScope to expand the feature domain, and evaluate the importance of each feature to rank the features based on the comprehensive importance calculated by permutation importance based on regressors; (3) model construction: progressively adding the spectral features one by one as independent variables to the GBDT model according to the ranking results, and screen out the optimal spectral feature domain and inversion model for wheat kernel moisture content; (4) wheat kernel moisture content mapping. The disclosure utilizes machine learning inversion models based on spectral features and PlanetScope satellite imagery to obtain the wheat kernel moisture content at any position of the target farmland.
    Type: Grant
    Filed: November 5, 2023
    Date of Patent: September 17, 2024
    Assignee: WUHAN UNIVERSITY
    Inventors: Zhaocong Wu, Junhan Luo, Haoyu Lin, Siqing Zhang, Zhixiong Dai, Weihua Lin, Yixian Yue
  • Patent number: 6695786
    Abstract: An instrument guide is described for mounting an invasive instrument such as a biopsy needle to an imaging probe, controlling its position, monitoring its position, and/or predictively displaying its position on a user display of the medical imaging system. A plurality of substantially rigid segments are hingeably connected to the probe, to an instrument handle, and to each other such that movement of the biopsy needle is restricted to within the imaged plane. However, substantial freedom of movement within the imaged plane is provided such that the instrument may be inserted into the patient over a wide range of angles. In one preferred embodiment, angle detectors are provided at each segment intersection and measurements provided for computing and displaying the instrument position and orientation on the user display. The instrument guide/position monitor is preferably made with low-cost components such that it is disposable after a single use.
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: February 24, 2004
    Assignee: U-Systems, Inc.
    Inventors: Shih-Ping Wang, Shengtz Lin, Siqing Zhang, Donald Chin, Karen D. Maroc
  • Publication number: 20020156376
    Abstract: For use in medical procedures such as ultrasound-assisted biopsies in which an invasive medical instrument such as a biopsy needle is guided by a medical imaging system such as an ultrasound system, an instrument guide is described for mounting the instrument to an imaging probe, controlling its position, monitoring its position, and/or predictively displaying its position on a user display of the medical imaging system. A plurality of substantially rigid segments are hingeably connected to the probe, to an instrument handle, and to each other such that movement of the biopsy needle is restricted to within the imaged plane. However, substantial freedom of movement within the imaged plane is provided such that the instrument may be inserted into the patient over a wide range of angles. In one preferred embodiment, angle detectors are provided at each segment intersection and provided to the medical imaging system for computing and displaying the position and orientation of the instrument on the user display.
    Type: Application
    Filed: March 18, 2002
    Publication date: October 24, 2002
    Applicant: U-Systems, Inc.
    Inventors: Shih-Ping Wang, Shengtz Lin, Siqing Zhang, Donald Chin, Karen D. Maroc