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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nagy, G. Clifford, B. Berg, A. Saunders, G. Lopresti, D. Smith, E.B. |
| Copyright Year | 2009 |
| Abstract | Portable ballot counters using camera technology and manual paper feed are potentially more reliable and less expensive than scanner-based systems. We show that the spatial sampling rate, geometric linearity, point-spread function, and photometric transfer function of off-the shelf consumer cameras are acceptable for ballot imaging. However, scanner illumination is much more uniform than can be economically accomplished for variable size ballots. Therefore flat-field compensation must be designed into the image processing software. We illustrate the mechanical design of a prototype camera-based ballot reader based on our comparative observations. |
| Starting Page | 151 |
| Ending Page | 155 |
| File Size | 650820 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424445004 |
| ISSN | 15205363 |
| DOI | 10.1109/ICDAR.2009.43 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-07-26 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Counting circuits Cameras Paper technology Manuals Feeds Image sampling Linearity Photometry Transfer functions Lighting camera-based document recognition ballot counter document digitization optical scanners |
| Content Type | Text |
| Resource Type | Article |
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