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:
Jan. 30, 2024
Filed:
Feb. 04, 2021
Chongqing Survey Institute, Chongqing, CN;
Zejun Xiang, Chongqing, CN;
Zhiyong Zhou, Chongqing, CN;
Yan Zhang, Chongqing, CN;
Liangchao Chen, Chongqing, CN;
Kaiquan Hu, Chongqing, CN;
Hong Ma, Chongqing, CN;
Junqian Zhang, Chongqing, CN;
CHONGQING SURVEY INSTITUTE, Chongqing, CN;
Abstract
A method for correcting space coordinates of a three-dimensional model includes: step S, reading information of an original coordinate frame of a three-dimensional model in a first format and the origin of coordinates of the model; reading information of nodes from three-dimensional model data in the first format, and calculating original coordinates of the nodes; step S, calculating parameters of correction between the original coordinate frame and a target coordinate frame; step S, transforming and correcting the coordinates of the origin and nodes of the three-dimensional model in the first format one by one by using the space coordinate correction matrix to obtain information of coordinate points of the three-dimensional model in the second format; and step S, storing a file of the three-dimensional model in the second format with corrected space coordinates. Also, a method for encrypting space coordinates of a three-dimensional model is provided.