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。


    Access

    Download


    Export, share and cite



    Title :

    Ship draft solving method and device


    Additional title:

    一种船只吃水深度求解方法和装置


    Contributors:
    ZHANG YUETING (author) / GUO JIAYI (author) / LI FANGFANG (author) / HU YUXIN (author)

    Publication date :

    2022-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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



    Ship draft measuring device

    HUA WENBO | European Patent Office | 2021

    Free access

    Ship draft measuring device and method

    LI HUILE / RAO CHUNXIAO / DU MIN | European Patent Office | 2023

    Free access

    Ship draft measurement method and device

    DING CHAO / QIAN JIANHUA | European Patent Office | 2015

    Free access

    Ship draft measurement method

    YOU XIAOQIN | European Patent Office | 2021

    Free access

    Ship draft water tightness test device

    LIU XINGMING / FU GANG / YANG GUOCHENG et al. | European Patent Office | 2023

    Free access