摘要
从图像中提取出的目标边界曲线由于受噪声的影响,使得相应的边界链码很难与目标形状一致,影响了用链码来分析目标形状.因此引入邻域一致性测度的概念,提出了链码的一种改进方法.利用该方法,对由Canny算子检测得到的边缘图像进行编码.实验结果表明,上述算法明显改善了常规方法对噪声敏感的性能,能有效地使用到链码分析目标形状的预处理中.
The curve of the target extracted form the image is affected by the noise,and make the homologous boundary chain codes difficultly in accordance with the target shape.So we led to the concept of the region homogeneity measure; and put forward an improved method. Make use of the method coding the edge detected by the Canny operation, experiment showed,the method improved the sensitivity to the noise the conventional method has, and it can be used effectively in the processing before analyzing the target shape.
出处
《大连海事大学学报》
CAS
CSCD
北大核心
2005年第1期102-104,共3页
Journal of Dalian Maritime University
关键词
链码
邻域一致性测度
边缘跟踪
形状描述
chain codes
region homogeneity measure
edge trace
shape descriptors
