发明名称 |
One-dimensional scanner system for two-dimensional image acquisition |
摘要 |
A one-dimensional scanner system for two-dimensional image acquisition includes a flying spot scanner for scanning in a line at a first velocity in a first direction across an object which is moving at a second velocity in a second direction transverse to the first direction; the first and second velocities establish a first sample rate in the second direction for defining a pixel size in the second direction; a timing device for detecting the velocity of the object in the second direction and generating a sample rate in the first direction and a frame accumulator for reading and storing each line scanned, assembling a two-dimensional image of the object and reading out that image; the frame accumulator including a compensation device responsive to the second sample rate for normalizing the second sample rate with the first sample rate to eliminate distortions in the pixel size and two-dimensional image in the first direction.
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申请公布号 |
US5991470(A) |
申请公布日期 |
1999.11.23 |
申请号 |
US19960742563 |
申请日期 |
1996.10.28 |
申请人 |
COMPUTER IDENTICS, INC. |
发明人 |
SWITHERS, DAVID JONATHAN;CHISHOLM, THOMAS J. |
分类号 |
G06K7/10;H04N1/053;H04N1/113;H04N1/12;(IPC1-7):G06K9/20 |
主分类号 |
G06K7/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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