摘要
陶瓷碎片拼接是考古过程中耗时费力的工作。为了提高陶瓷碎片拼接效率,本文针对整体为圆轮廓的陶瓷碎片,提出一种基于形状度量的二维拼接算法。该算法通过对碎片图像预处理,可提取每块陶瓷碎片的直线和圆弧特征点集合,并将这些特征信息经过刚体变换以实现陶瓷的快速匹配与拼接。同时,本文算法通过定义轮廓坐标和外形圆轮廓形状一致性度量特征匹配的误差以衡量拼接效果。本文提出的方法仅与形状特征有关,受图片灰度的变化影响小。实验结果表明:本文提出的方法对陶瓷碎片二维拼接具有较好的效果,同时运行效率高,实时性较好。
Potsherd stitching is a time-consuming and laborious work in archaeology.To improve the efficiency of potsherd stitching,a two-dimensional stitching algorithm,which is a part of earthenware with circular contour,using shape constraint,is presented.The line and arc feature sets are extracted by preprocessing the potsherd image,while the feature sets are processed through rigid transformation to match and stitch between the potsherds.The errors used to measure the stitching effect are evaluated through the definition of contour coordinate and circular contour shape consistencies.The algorithm is only associated with the potsherd shape,instead of the gray level of the potsherd image.It is demonstrated that the potsherd stitching algorithm has high efficiency with real-time characteristic.
作者
尚冲
曹利钢
冯浩
王俊祥
SHANG Chong;Cao Ligang;FENG Hao;WANG Junxiang(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,Jiangxi,China)
出处
《陶瓷学报》
CAS
北大核心
2021年第2期320-324,共5页
Journal of Ceramics
基金
江西省教育厅科技项目(GJJ160899)。
关键词
碎片拼接
形状约束
二维拼接
potsherd stitching
shape constraint
two-dimensional stitching
