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基于数字图像处理的植物叶面积测量方法
A Measurement Approach of Leaf Area Based on Digital Image Processing
【摘要】 数码相机摄入图像时产生的线性几何畸变会给叶片面积的测量带来误差。针对此问题文章改进了Hough变换算法,并用来对叶片畸变图像进行几何校正,然后计算叶片面积。实验表明,该方法适于多种植物的叶面积活体测量,速度快,精度高。
【Abstract】 The leaf image taken by digital camera often has linear geometric distortion,it can bring error to the measurement of leaf area.To solve this problem,firstly,this paper improves the Hough transform and uses it to correct the distorted leaf image,then,computes the leaf area.Experiment results affirm that the method introduced is suitable for measuring of many kinds of living leaf area with fast speed and high precision.
【关键词】 叶面积;
数字图像;
畸变图像;
Hough变换;
几何校正;
【Key words】 leaf area; digital image; distorted image; Hough transform; geometrical rectification;
【Key words】 leaf area; digital image; distorted image; Hough transform; geometrical rectification;
【基金】 国家茧丝绸风险发展基金(编号:国茧协办(2003)40号)
- 【文献出处】 计算机工程与应用 ,Computer Engineering and Applications , 编辑部邮箱 ,2006年27期
- 【分类号】Q94-33
- 【被引频次】64
- 【下载频次】820