The following images summarize the results of the City of Portland, Bureau of Licenses' in-depth comparisons between the available in-car digital security camera systems: Silent Witness™, ImageSync™, Winsnap™, and TaxiCam™. When the City of Portland mandated that all cabs be fitted with a camera, they held to a high standard of image quality in a variety of typical conditions. As there had been no extensive, independent studies on these products, the Bureau conducted its own tests, and the conclusion was clear: TaxiCam™ came out on top, outperforming the best of the competition by almost 43 percent*!
Four manufacturers' images compared
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| Day | Night | Headlights | |
| DDS |  |
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| Raywood |  |
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| Silent Witness |  |
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| VerifEye DL |  |
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| VerifEye SL |  |
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* Based on results of a vote by the Camera Selection Committee for the Bureau of Licenses. The vote was made by six judges solely on image quality on a scale from 1 to 5, with 5 being the best score, with a total score of 30 points per system. The image quality of VerifEye TaxiCam™ DL ranked a score of 29 with TaxiCam™ SL at a close 25. The highest score of the competition was 16, and the lowest score was 7.