发明名称 |
Method and apparatus for dynamically segmenting a bar code |
摘要 |
A method and apparatus are disclosed for reading a two-dimensional bar code having bars located nominally at predetermined pitch increments. The invention provides a method and apparatus for reading a two-dimensional bar code and dynamically segmenting it into individual bars on a real time basis, as it is read. The segmentation is done on a bar-to-bar basis, and may be adjusted for an individual bar as necessary. The method and apparatus locate the bar data, scan it, and create a profile vector having elements based upon the amount of image data in each scan. The vector is compared to a predetermined stored set of vector elements representing the likelihood that each scan line of image data contains bar image data. Those scan lines of image data corresponding to a bar image are sent to recognition logic and those scan lines of image data corresponding to a space are disregarded.
|
申请公布号 |
US4608489(A) |
申请公布日期 |
1986.08.26 |
申请号 |
US19840616822 |
申请日期 |
1984.06.04 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
RAMSEY, DAVID A.;ROHE, CLAIR F.;SAWICKI, THOMAS E. |
分类号 |
G06K7/00;G06K7/10;G06K9/00;(IPC1-7):G06K7/10 |
主分类号 |
G06K7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|