Abstract
In order to solve the problems of difficulty and low accuracy in three-dimensional reconstruction based on 2D images, this paper proposes a three-dimensional reconstruction method based on inverse perspective transformation for 2D images. This method through the detection and segmentation in the images of the water wall tube welding area, a two-dimensional image by inverse perspective transformation welding area of the reduction in the three-dimensional world, is obtained by cubic spline interpolation on flow surface area boundary point, using three-dimensional kriging interpolation method involves cloud model, the point cloud model for grid operation, reconstruction of three-dimensional welding zone model. The experimental results show that this method is simple and efficient, and can effectively carry out three-dimensional reconstruction based on 2d images, which provides a new way of thinking for three-dimensional reconstruction of 2D images.
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