发明名称 |
Method and system for double feed detection |
摘要 |
A system for detecting overlapped flat objects in a sequence of flat objects have at least one of their edges exposed for viewing as they pass along a feed path. The system includes a sensor for generating a signal in response to detecting a flat object in the feed path and a camera responsive to the signal for capturing a digital image of the exposed edges of the detected flat object in the feed path. A vision system is coupled to the camera for receiving the digital image. The vision system analyzes at least a portion of the image to determine a pixel density variation along a direction perpendicular to the edges and uses the pixel density variation to output an indication of the number of edges in the image.
|
申请公布号 |
US2003091236(A1) |
申请公布日期 |
2003.05.15 |
申请号 |
US20020235842 |
申请日期 |
2002.09.06 |
申请人 |
OMRON CANADA INC. |
发明人 |
SCICLUNA CHARLES PAUL;NEAL JEFFREY CHARLES;BROWNE DOUGLAS CRAIG |
分类号 |
B65H7/12;(IPC1-7):G06K9/48 |
主分类号 |
B65H7/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|