发明名称 |
Autodiscrimination and line drawing techniques for code readers |
摘要 |
Optical image readers have a two-dimensional image sensor and an auto-discrimination function. The auto-discrimination function identifies optical codes by type for pixel clusters and, in some cases, tilt angle and start/stop coordinates. The clustered pixel data is passed to an appropriate decoder identified by the auto-discrimination function based upon a likelihood that the cluster contains an optical code of a particular type. Line drawing technique provide for adequate sampling of the clustered pixel data code based on the tilt angle of the code relative to an image sensor array.
|
申请公布号 |
US6405925(B2) |
申请公布日期 |
2002.06.18 |
申请号 |
US20010809216 |
申请日期 |
2001.03.16 |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
HE DUANFENG;JOSEPH EUGENE;CAI JOSEPH |
分类号 |
G06K7/14;(IPC1-7):G06K9/22 |
主分类号 |
G06K7/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|