Research On Methods Of Mesh Regularization Based On 3D Line Segment

The 3D modeling based on the disordered image due to equipment low cost,strong visual effect,no artificial intervention,has been more and more broadly used in 3D mapping,city planning,games,video and other industries.However,the modeling process will produce a lot of noise,which will lead to having linear feature triangle mesh model reconstruction in the edge of uneven cannot show sharp straight edge structure,affecting the visual effects of the reconstruction mesh model.In order to enhance the model's visual effect,we proposed a triangular mesh regularizing method based on 3D lines.The triangle mesh regularization includes two key steps: simplification of 3D lines,construct three-dimensional constraint structure.For simplifying 3D lines,firstly,we use region-growing algorithm to detect planar region of triangular mesh model,and then extract the contour line of planar region,using contour line filtering the edge of the 3D line segment.For construct 3D constraint structure,firstly,we get the topological relations between 3D lines with triangular mesh model,and then using the relative topology relations to construct 3D constraint structure.The 3D constraint structure embedded in the triangular mesh and simplified mesh which can preserve the edge sharp straight and original contour structure.Experimental results show that the method based on 3D lines can resume in the model of uneven edges,sharp straight edge,preserve original contour structure and enhance the visual effects of the reconstruction mesh model.