The invention provides a ship draft calculation method, which comprises the following steps: intercepting a ship and a scattering region where the ship interacts with the water surface from a synthetic aperture radar image to obtain a first image; acquiring geometric parameters of the ship and system parameters of the synthetic aperture radar; rotating the first image to obtain a second image; accumulating the image gray values along the secondary scattering ray direction of the second image to obtain a one-dimensional distance direction superposition signal corresponding to the second image; and calculating the draft of the ship according to the geometric parameters, the system parameters and the one-dimensional distance direction superposition signals.
本公开提供了一种船只吃水深度计算方法,包括:从合成孔径雷达图像中截取船只及所述船只与水面相互作用的散射区域,得到第一图像;获取所述船只的几何参数和合成孔径雷达的系统参数;旋转所述第一图像,得到第二图像;沿所述第二图像的二次散射线方向将图像灰度值进行累加,得到所述第二图像对应的一维距离向叠加信号;根据所述几何参数、所述系统参数和所述一维距离向叠加信号计算所述船只的吃水深度。
Ship draft solving method and device
一种船只吃水深度求解方法和装置
2022-04-01
Patent
Elektronische Ressource
Chinesisch
IPC: | G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen |