The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2023
Filed:
May. 12, 2023
Nanjing University of Aeronautics and Astronautics, Nanjing, CN;
Jun Wang, Nanjing, CN;
Zhongde Shan, Nanjing, CN;
Kaijun Zhang, Nanjing, CN;
Zikuan Li, Nanjing, CN;
Chao Li, Nanjing, CN;
Nanjing University of Aeronautics and Astronautics, Nanjing, CN;
Abstract
This application discloses a semantic learning-based down-sampling method of point cloud data of an aircraft, including: (S) constructing a multi-input encoder based on feature learning according to point cloud semantic learning principle; inputting the point cloud data of the aircraft and feature point data into the multi-input encoder for feature fusion followed by decoding using a decoder the multi-input feature fused data to obtain to-be-measured data; (S) constructing and training a point cloud feature weight calculation network based on semantic learning to acquire a feature weight of each point in the to-be-measured data; and (S) performing spatial weighted sampling on the feature weight of each point in the to-be-measured data followed by down-sampling based on Gaussian distribution-based spatial sampling principle.