Research on techniques for 3D accurate modeling of soybean leaf

At present, although the shape of soybean leaves can be simulated, but the method of establishing leaves outline geometric features that provided in these studies was complex, the data volumes of geometric modeling was large. This paper presents a method of obtaining leaves feature points based on an edge detection technique, using the three parameters spline curve to generate contour of soybean leaves. Loop technology was used to subdivide leaf surfaces to get a smooth surface, and finally texture-mapping technology was used to achieve real model of soybean leaves. The method of 3D accurate modeling for soybean leaves in this paper provides the necessary means and lay the foundation for the study on virtual plant leaves geometric modeling, which has certain practical value.