Patents by Inventor Danfeng Liu

Danfeng Liu 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).

  • Publication number: 20260134523
    Abstract: A pan-sharpening method based on multimodal texture correction and adaptive edge detail fusion is provided, including: fusing upsampled low-resolution multispectral (LRMS) images with panchromatic images to obtain fused images; respectively extracting intensity components of the LRMS image and the fused image; inputting the intensity components and the panchromatic images into a multimodal texture correction model, and performing optimization solution on the multimodal texture correction model through optimization method to obtain texture-corrected images; extracting details of the texture-corrected images and applying edge protection to obtain first image details; extracting details of the upsampled LRMS image and applying edge protection to obtain second image details; performing adaptive fusion on the first image details and the second image details to obtain detail information; and adding the detail information to the upsampled LRMS image to obtain final high-resolution multispectral (HRMS) images.
    Type: Application
    Filed: September 19, 2025
    Publication date: May 14, 2026
    Inventors: Liguo WANG, Danfeng LIU, Enyuan WANG, Haitao LIU
  • Patent number: 12579780
    Abstract: A hyperspectral target detection method of a binary-classification encoder network based on a momentum update is provided, and includes following steps: converting an acquired 3-D hyperspectral image into a hyperspectral image in a 2-D matrix form, performing a clustering to obtain a clustering result, and initializing a centroid; based on the clustering result, using Euclidean distance to find pixels adjacent to each centroid as pure background pixels and target pixels, and screening pure pixels; constructing a background-target training sample set based on the pure pixels, constructing a binary-classification encoder network based on a momentum update through the background-target training sample set, calculating a loss function, and optimizing to obtain a trained binary-classification encoder network; inputting the hyperspectral image in the 2-D matrix form into the trained binary-classification encoder network, and outputting a final detection map.
    Type: Grant
    Filed: August 24, 2023
    Date of Patent: March 17, 2026
    Assignee: Dalian Minzu University
    Inventors: Liguo Wang, Xiaoyi Wang, Danfeng Liu, Haitao Liu, Ying Xiao
  • Publication number: 20260048958
    Abstract: The invention discloses a cutting housing for separating sections of roll paper and a method for cutting and separating sections of roll paper. The cutting housing for separating sections of roll paper comprises a shell with a roll paper channel running through the length of the shell from front to back, and two opposite sides surrounding the roll paper channel, wherein the roll paper channel can accommodate roll paper, with one end open for the roll paper to pass through; at least one side is equipped with a cutting channel and a cutting blade, and the cutting channel extends roughly along the length of the shell and connects the roll paper channel with the exterior of the shell; and the cutting blade is arranged in the cutting channel for manually separating sections of roll paper that enter the cutting channel.
    Type: Application
    Filed: August 15, 2024
    Publication date: February 19, 2026
    Applicant: Shenzhen Huafengqiwu Technology Co., Ltd
    Inventor: Danfeng LIU
  • Patent number: 12530629
    Abstract: A method for constructing a support vector machine of a nonparallel structure is provided. On the basis of a traditional parallel support vector machine (SVM), a least square term of samples is added, an additional empirical risk minimization term and an offset constraint term are added to an original optimization problem, so as to obtain two nonparallel hyperplanes respectively, and a new nonparallel support vector machine with additional empirical risk minimization is formed. The method includes: preprocessing data, solving a Lagrange multiplier of a positive-class hyperplane, solving a Lagrange multiplier of a negative-class hyperplane, solving parameters of positive-class and negative-class hyperplanes, and determining a class of a new data point. Through the new method, a new nonparallel vector machine algorithm is proposed to further improve classification accuracy of hyperspectral images on the basis of the algorithm itself, so as to obtain better classification performance.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: January 20, 2026
    Assignee: Dalian Minzu University
    Inventors: Liguo Wang, Guangxin Liu, Ying Xiao, Danfeng Liu, Haitao Liu
  • Patent number: 12499661
    Abstract: A collaborative active learning classification method for hyperspectral images based on capsule networks is provided in the application, the method trains base classifiers CapsViT and CapsGLOM using an initial training set; calculates BvSB values of candidate samples using the CapsViT; uses the CapsGLOM to predict labels of the candidate samples; sorts the candidate samples according to the BvSB values; puts the candidate samples after sorting into corresponding collectors according to category labels estimated by the CapsGLOM; labels information samples; updates the initial training set and candidate sample set and retrains the CapsViT and CapsGLOM; and obtains the classification results based on CapsViT and CapsGLOM after iteration.
    Type: Grant
    Filed: July 1, 2023
    Date of Patent: December 16, 2025
    Assignee: Dalian Minzu University
    Inventors: Liguo Wang, Heng Wang, Danfeng Liu, Ying Xiao, Haitao Liu
  • Patent number: 12325146
    Abstract: A hand-pushed paper cutting apparatus comprises a main body and a blade assembly installed on the main body. The main body has at least one end face oriented toward paper, and the end face is configured as a cutting face. The cutting face is provided with a receiving groove for installing the blade assembly. The blade assembly comprises a blade holder and a blade, and a gap exists between the blade holder and an inner wall of the receiving groove and is designated as a cutting area.
    Type: Grant
    Filed: December 17, 2024
    Date of Patent: June 10, 2025
    Inventor: Danfeng Liu
  • Publication number: 20240386699
    Abstract: A hyperspectral target detection method of a binary-classification encoder network based on a momentum update is provided, and includes following steps: converting an acquired 3-D hyperspectral image into a hyperspectral image in a 2-D matrix form, performing a clustering to obtain a clustering result, and initializing a centroid; based on the clustering result, using Euclidean distance to find pixels adjacent to each centroid as pure background pixels and target pixels, and screening pure pixels; constructing a background-target training sample set based on the pure pixels, constructing a binary-classification encoder network based on a momentum update through the background-target training sample set, calculating a loss function, and optimizing to obtain a trained binary-classification encoder network; inputting the hyperspectral image in the 2-D matrix form into the trained binary-classification encoder network, and outputting a final detection map.
    Type: Application
    Filed: August 24, 2023
    Publication date: November 21, 2024
    Inventors: Liguo WANG, Xiaoyi WANG, Danfeng LIU, Haitao LIU, Ying XIAO
  • Publication number: 20240378864
    Abstract: A collaborative active learning classification method for hyperspectral images based on capsule networks is provided in the application, the method trains base classifiers CapsViT and CapsGLOM using an initial training set: calculates BvSB values of candidate samples using the CapsViT: uses the CapsGLOM to predict labels of the candidate samples; sorts the candidate samples according to the BvSB values: puts the candidate samples after sorting into corresponding collectors according to category labels estimated by the CapsGLOM; labels information samples; updates the initial training set and candidate sample set and retrains the CapsViT and CapsGLOM; and obtains the classification results based on CapsViT and CapsGLOM after iteration.
    Type: Application
    Filed: July 1, 2023
    Publication date: November 14, 2024
    Inventors: Liguo WANG, Heng WANG, Danfeng LIU, Ying XIAO, Haitao LIU
  • Publication number: 20230351267
    Abstract: A method for constructing a support vector machine of a nonparallel structure is provided. On the basis of a traditional parallel support vector machine (SVM), a least square term of samples is added, an additional empirical risk minimization term and an offset constraint term are added to an original optimization problem, so as to obtain two nonparallel hyperplanes respectively, and a new nonparallel support vector machine with additional empirical risk minimization is formed. The method includes: preprocessing data, solving a Lagrange multiplier of a positive-class hyperplane, solving a Lagrange multiplier of a negative-class hyperplane, solving parameters of positive-class and negative-class hyperplanes, and determining a class of a new data point. Through the new method, a new nonparallel vector machine algorithm is proposed to further improve classification accuracy of hyperspectral images on the basis of the algorithm itself, so as to obtain better classification performance.
    Type: Application
    Filed: September 2, 2022
    Publication date: November 2, 2023
    Applicant: Dalian Minzu University
    Inventors: Liguo WANG, Guangxin LIU, Ying XIAO, Danfeng LIU, Haitao LIU
  • Publication number: 20150313928
    Abstract: A novel usage of catalpol.
    Type: Application
    Filed: December 11, 2013
    Publication date: November 5, 2015
    Applicant: SUZHOU YOUSEEN NEW PHARMACY DEVELOPMENT CO., LTD.
    Inventors: Zhenyu Xuan, Yan Hua, Changxun Chen, Danfeng Liu, Chi Zhou