Method for establishing three-dimensional virtual image in real time by using 3D underwater sonar system

• Main Authors: WEN QI, CHEN LINGXIN, LI YANG, XU ZHONGWEI, FU LONGWEN, XIA CHUNLEI
• Format: Patent
• Language: Chinese; English
• Published: 31.01.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses a method for establishing a three-dimensional virtual image in real time by using a 3D underwater sonar system, and belongs to the technical field of 3D sonar modeling, and the method comprises the steps: obtaining a target object reflection signal at a first time point through a sonar; determining a coordinate origin and establishing a coordinate system; target object reflection signals at a plurality of continuous time points after the first time point are obtained through sonar; establishing coordinates of a plurality of target object reflection positions corresponding to a plurality of continuous time points in the coordinate system; setting an initial mirror image distance; according to the initial mirror image distance and each target object reflection position coordinate, mirror image target object reflection position coordinates with the same number as the target object reflection positions are generated; and constructing a three-dimensional virtual image according to the targe