Inventor
XIANG ZEJUN
CN3 patents
Patents
3 patentsUS11385359B2Jul 12, 2022
Point cloud data acquisition method and device under situation of no GNSS signal
CHONGQING SURVEY INST0 citations39
US11760397B2Sep 19, 2023
Method for extracting and analyzing spatial information of control and protection zone of rail transit with multiple threshold constraints
CHONGQING SURVEY INST0 citations38
US11887254B2Jan 30, 2024
Methods for correcting and encrypting space coordinates of three-dimensional model
CHONGQING SURVEY INST0 citations36