发明名称 |
Fast finding algorithm for two-dimensional symbologies |
摘要 |
A plurality of scan lines is used to detect characteristic features of a checkerboard structure or similar pattern structure of symbology within a field of view. The scan lines cross leading edges of the symbology which provides signals to a plurality of processors. The processors detect instances wherein sequential leading edges exhibit angular shifts corresponding to a pattern of the symbology. A further processor is used to detect when a coincidence of these angular shifts occur, thereby providing an indication of the location of the symbology within the field of view.
|
申请公布号 |
US6173893(B1) |
申请公布日期 |
2001.01.16 |
申请号 |
US19970842719 |
申请日期 |
1997.04.16 |
申请人 |
INTERMEC CORPORATION |
发明人 |
MALTSEV PAVEL;PENN RICHARD |
分类号 |
G06K7/10;G06K7/14;(IPC1-7):G06K7/10 |
主分类号 |
G06K7/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|