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草莓采摘机器人的研究:Ⅲ.扫描线填充算法在草莓图像孔洞填充中的应用
Study on strawberry harvesting robot:Ⅲ.Application of scan line filling algorithm in vacancy filling of strawberry image
【摘要】 为解决强光照射导致的草莓图像分割后的内部孔洞问题,采用扫描线填充算法对孔洞进行填充。首先提取图像中整个草莓果实区域的轮廓线,在分析水平扫描线和区域轮廓线相交的各种可能性后,快速求取扫描线和轮廓线的交点,然后进行交点配对和区域填充,通过对整个草莓果实区域的填充实现孔洞填充。对150幅有孔洞的草莓图像进行填充试验,结果表明,采用该算法可以填充目标图像中的所有孔洞,填充准确率为100%,填充效果与孔洞位置、大小、数量等因素无关。与其他填充算法相比,该算法流程简单,复杂度低,填充结果准确可靠,可推广进行其他图像孔洞的填充。
【Abstract】 In order to fill the vacancies in images caused by the reflection of strong light,the scan line filling algorithm was introduced in the paper.Firstly,the contour line of a strawberry was traced.Secondly,based on the analysis of different possibility to scan line and contour’s intersection,a fast algorithm was applied to acquire the intersections be-tween the scan line and the contour.Then the intersections were made up and the region was filled.Using this algo-rithm,the vacancies were filled through filling the strawberry region.The filling experiments for150images with vacan-cies proved that the scan line filling algorithm could fill100percent vacancies and the filling effect was independent of vacancy’s position,size and quantity.Besides,the algorithm has the features of simplicity,speediness and accuracy and can be applied to fill vacancies in other images.
【Key words】 strawberry; harvesting robot; vacancy; regional filling; scan line filling;
- 【文献出处】 中国农业大学学报 ,Journal of China Agricultural University , 编辑部邮箱 ,2007年02期
- 【分类号】TP242
- 【被引频次】32
- 【下载频次】577