链码表和线段表用于图像特征提取的研究

Chain Code Form and Line Segment Form in Image Character Distilling

针对图像特征提取中轮廓跟踪的问题,介绍了链码表和线段表的数据结构,及其在肺癌细胞特征提取中的应用。在对肺癌细胞图像进行轮廓跟踪过程中,首先用行扫描得到细胞轮廓起点,然后采用链码跟踪技术,跟踪其轮廓,得到一个封闭的轮廓信息即链码表,一直到所有的轮廓跟踪完毕为止。然后通过线性转换得到线段表,再根据链码表和线段表分别求出周长和面积等特征。最后在Visual C++软件平台上对该方法进行了验证。结果证明,该方法可准确求出肺癌细胞图像的几何特征。

Aimed at outline track problems in image characters distilling, data structures of chain code form and line segment form are introduced and the application to lung cancer character distilling is discussed. In course of lung cancer cell image outline track, the outline starting point is obtained with the line scanning, and one yard tracking technology is used to track its outline, by which a closed outline information, chain code of form can be got, until all outlines are followed. Then the line segment form is obtained through linear conversion. According to chain code form and line segment form, characters such as perimeter, area, etc. are calculated. The simulation results in by the software of Visual C ＋ ＋ show that the proposed method is feasible and can figure out geometric characters of lung cancer ceil image by rule and line.