专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US08755588B2 Method for automatic region segmentation on cartridge case base and selection of the best mark region for cartridge case comparison 有权
标题翻译：盒式磁带盒自动区域分割方法和盒式磁带盒比较的最佳标记区域选择
公开(公告)号：US08755588B2
公开(公告)日：2014-06-17
申请号：US12989393
申请日：2009-04-17
申请人： Ugur Murat Leloglu , Ufuk Sakarya , Erol Tunali
发明人： Ugur Murat Leloglu , Ufuk Sakarya , Erol Tunali
IPC分类号： G06K9/00 , G06K9/36
CPC分类号： G06K9/4633 , F42B35/00 , G06K9/00201 , G06T7/12 , G06T2207/30136
摘要： Segmentation of certain regions defined on a firearm cartridge case for successful automatic matching of cartridge cases after a cartridge is fired, on the basis of the marks left on the cartridge cases fired. Disclosed is a method for segmentation of a cartridge case base by using surface height matrix information comprising: detecting the center of the cartridge case base; according to this center, obtaining the polar height matrix by subjecting the surface height matrix to polar transformation; acquiring a one-dimensional signal, “Average Height Signal on the Basis of Radius” (AHSBR), by calculation of the mean value on the radius axis applied on the polar height matrix; determining regions similar to circle signal models on the AHSBR and detecting circles; determining the firing pin mark region by threshold processing of the primer region surface height matrix. Letters on the cartridge case base are detected by using slope matrices.
摘要翻译：基于在盒式磁带盒上所留下的标记被点火，在枪管盒上定义的某些区域的分割成功地在盒式磁带被点火之后成功自动匹配盒式磁带盒。公开了一种通过使用表面高度矩阵信息来分割盒壳体基底的方法，包括：检测盒壳体的中心; 根据该中心，通过使表面高度矩阵进行极坐标变换获得极坐标矩阵; 通过计算施加在极高度矩阵上的半径轴上的平均值，获取一维信号“基于半径的平均高度信号”（AHSBR）; 确定类似于AHSBR和检测圈上的圆信号模型的区域; 通过底漆区域表面高度矩阵的阈值处理来确定点针标记区域。通过使用斜率矩阵来检测墨盒壳体上的字母。

IPRDB

热门服务

关于我们

友情链接

联系方式