【摘要】 为了研究植物叶片的外观特征,对叶缘的分离进行了研究.首先,通过对叶缘形状的观察,基于类比原则,应用凸集理论中的相关定理,研究发现某种类型对称叶片的叶缘所构成的平面点集中,任意两点的最大距离是叶尖点到叶基与叶柄交点的距离.以此为据,通过matlab编程,有效判别出杂交玉女兰,狗牙花,小叶榕,灰莉以及大红花等植物叶片的叶尖点以及叶基与叶柄的交点,从而实现对称叶片左右边界的分离.方法可以分离一般对称叶片的左右边界,为更好地解决叶片轮廓几何建模问题并为求取叶片特征参数等问题提供技术支持.更多还原

【Abstract】 In order to study the characteristic of plant leaves,to separate the leaf margin was discussed in this paper.Firstly,base on the observation of the leaf margin shape,analogy method and convex set theorem were applied.Our study found that the maximum distance of any two points on planar point set of some symmetrical leaves was obtained at tip point and the intersection of leaf base and petiole.Some plants,e.g.,Hybrid Cymbidium,Tabemaemontana divaricate,Ficus microcarpa,Fagraea ceilanica and Chinese Hibiscus,used our method can effectively to separate the left side and the right side.Our method can provide technical support for blade profile geometry modeling and leaf characteristic parameters calculating.更多还原