利用结构光进行水下测量的新方法

A New Method of Underwater Measurement Using Structured Light

文章提出了一种利用结构光进行水下测量的新方法,利用结构光进行水下测量需要完成三部分工作,第一部分是进行摄像机内外参数的标定,第二部分是利用共面靶标,根据交比不变原理进行结构光参数的标定,第三部分是利用摄像机成像模型,根据第二部分标定出的结构光参数,将结构光的图像二维信息转化为水下目标物体的三维信息。本文在第二部分以及第三部分均做了创新,一是利用投影仪垂直投射多条相交于一点的结构光于玻璃平面;二是建立新的水下测量模型,通过延长水下光线交光轴于一点,形成新的光心,将摄像机的非线性模型转化为线性模型。

In this paper, a new method of underwater measurement using structured light is proposed. The underwater measurement using structured light is required to complete three parts. The first part is to calibrate the inside and outside parameters of the camera. The second part is to use the coplanar target. The third part is the use of camera imaging model, according to the second part of the structure of the standard optical parameters, the structure of the light image of the two-dimensional information into the underwater target three-dimensional information. In this paper, the second part and the third part of the innovation,one is the use of vertical projection projector intersect at one point on the structure of light in the glass plane; the second is to establish a new underwater measurement model, by extending the underwater light Axis at one point to form a new optical center, then, the camera's nonlinear model transforms a linear model.