为了实现水工物理模型实验中波高这一重要参量的高精度测量，提出了一种基于激光入射光斑识别的非接触式波高测量方法。构建了波高测量装置的图像成像几何关系模型，研究了波高测量装置主要参数的确定方法。根据激光入水二值化图像特征构造了激光入水特征模板，提出了激光光斑动态跟踪算法。最后，根据确定的结构参数与图像传感器参数，搭建了实验装置，对波高传感器进行了标定，并利用标定曲线对电动位移平台模拟的波浪进行了测量。实验结果表明：实测位移与电动位移平台设定的位移基本吻合，最大误差仅为0.65 mm。该方法基本满足水工物理模型实验波高测量的高精度、非接触与高动态性等需求。

To achieve high-precision， non-contact wave height measurements， a non-contact wave height measurement method based on laser-incoming spot recognition was proposed. First， the image geometry model of the wave height measurement device was constructed， and the primary parameter determination method of the wave height measurement device was studied. Then， according to the characteristics of the binary image of a laser in water， a laser-water entry feature template was constructed， and a dynamic laser spot tracking algorithm was proposed. Finally， according to the determined structural and image sensor parameters， an experimental device was constructed， the wave-height sensor was rated， and the wave simulated by the electric displacement platform was measured using the calibration curve. The experimental results show that the measured displacement is identical to the set displacement of the electric displacement platform， with a maximum error of only 0.65 mm， essentially meeting the high precision， non-contact， and high dynamic measurement requirements of hydro-physical model experiment waves.