Landmark Analysis Of Leaf Shape Using Polygonal Approximation

Workshop and International Seminar on Science of Complex Natural Systems

Firmansyah, Zakhi^1 ; Herdiyeni, Yeni^1 ; Silalahi, Bib Paruhum^2 ; Douady, Stephane^3

Department of Computer Science, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, West Java, Indonesia^1

Department of Mathematic, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, West Java, Indonesia^2

Laboratoire: Matiere et System Complex, Université Paris Diderot, France^3

关键词: Control parameters;    Developmental biology;    Geometric morphometric;    Leaf shape analysis;    Polygonal approximations;    Quantitative tool;    Research focus;    Static thresholds;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/31/1/012018/pdf
DOI  :  10.1088/1755-1315/31/1/012018

来源: IOP

【 摘 要 】

This research proposes a method to extract landmark of leaf shape using static threshold of polygonal approximation. Leaf shape analysis has played a central role in many problems in vision and perception. Landmark-based shape analysis is the core of geometric morphometric and has been used as a quantitative tool in evolutionary and developmental biology. In this research, the polygonal approximation is used to select the best points that can represent the leaf shape variability. We used a static threshold as the control parameter of fitting a series of line segment over a digital curve of leaf shape. This research focuses on seven leaf shape, i.e., eliptic, obovate, ovate, oblong and special. Experimental results show static polygonal approximation shows can be used to find the important points of leaf shape.