中文摘要：

针对基于图像的植物叶片真实感建模进行了研究，提出对植物叶片图像的轮廓特征点进行三次均匀B样条曲线插值的算法。该方法提取出标本叶片图像的角点作为特征点，采用三次均匀B样条曲线进行初步插值拟合，并根据拟合误差采用改进的节点插入算法进行反复迭代，直到达到要求的拟合精度。与传统方法相比，该方法能够更快地达到逼近精度，并且具有良好的模拟效果，有一定的实际应用价值。

英文摘要：

Aiming at the realistic modeling of plant leaf based on images, this paper proposed a novel algorithm of using con- tour feature points of plant image to interpolate cubic uniform B-spline. Firstly, it identified and extracted the comers of the image as feature points, then utilized the feature points to interpolate cubic uniform B-spline, finally added new nodes by the improved algorithm of knot insertion according to the error to iterate until it met the required accuracy. Experimental results demonstrate that the new algorithm is superior compared to the other methods in the aspects of computation time and simulation effect, so the algorithm has certain annlication value.