Patents by Inventor Xinfei LU

Xinfei LU 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: 12140658
    Abstract: A method of target feature extraction and multi-target tracking based on 4D millimeter wave radar includes acquiring the point cloud data output from the radar and preprocess the point cloud data to eliminate the outlier value; processing the points acquired after preprocessing by Density-Based Spatial Clustering of Applications with Noise (DBSCAN) clustering; processing each of the acquired clusters for target feature extraction; predicting the existing trajectory is predicted, and the prediction results are globally correlated with the clustering results; based on the correlation clustering results, the corresponding multi-target tracking motion state processing is executed to obtain the transverse pendulum angular velocity; and based on the target motion state, the target size information as well as the heading angle information are updated.
    Type: Grant
    Filed: February 13, 2024
    Date of Patent: November 12, 2024
    Assignee: SHANGHAI GEOMETRICAL PERCEPTION AND LEARNING CO., LTD.
    Inventors: Song Pan, Xinfei Lu, Jianjun Zhang, Dan Xue, Songhua Shi
  • Publication number: 20240288569
    Abstract: A method of target feature extraction and multi-target tracking based on 4D millimeter wave radar includes acquiring the point cloud data output from the radar and preprocess the point cloud data to eliminate the outlier value; processing the points acquired after preprocessing by Density-Based Spatial Clustering of Applications with Noise (DBSCAN) clustering; processing each of the acquired clusters for target feature extraction; predicting the existing trajectory is predicted, and the prediction results are globally correlated with the clustering results; based on the correlation clustering results, the corresponding multi-target tracking motion state processing is executed to obtain the transverse pendulum angular velocity; and based on the target motion state, the target size information as well as the heading angle information are updated.
    Type: Application
    Filed: February 13, 2024
    Publication date: August 29, 2024
    Inventors: Song Pan, Xinfei Lu, Jianjun Zhang, Dan Xue, Songhua Shi
  • Publication number: 20210323560
    Abstract: A vehicle speed calculation system includes a radar mounted at a vehicle and including an antenna used to receive an echo signal, a memory storing a program code, and a processor configured to execute the program code to obtain the echo signal and generate detection data according to the echo signal, determine, according to the detection data, a stationary object around the vehicle and stationary relative to a ground, determine a relative moving speed of the stationary object relative to the vehicle, and determine a vehicle speed of the vehicle according to the relative moving speed of the stationary object.
    Type: Application
    Filed: June 25, 2021
    Publication date: October 21, 2021
    Inventors: Xinfei LU, Lei CHEN, Yiqiang LI
  • Publication number: 20210109206
    Abstract: A target detection method, a system, and a computer-readable storage medium are provided. The method includes: obtaining a scattering point set by using a radar sensor, where the scattering point set includes a plurality of scattering points; grouping the plurality of scattering points into at least one area based on characteristic information of the scattering points; and for a scattering point in each area, performing target detection on the scattering point in the area based on a detection parameter corresponding to the area, where detection parameters are individually set for different areas separately. The present disclosure can be used to effectively distinguish between a stationary object and a moving object, improve accuracy of target detection, and improve efficiency of target detection.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Applicant: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Yiqiang LI, Xinfei LU, Weilong DAI