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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Oprisescu, S. Falie, D. Ciuc, M. Buzuloiu, V. |
| Copyright Year | 2007 |
| Description | Author affiliation: Univ. Politehnica of Bucharest, Bucharest (Oprisescu, S.; Falie, D.; Ciuc, M.; Buzuloiu, V.) |
| Abstract | The most important characteristic of time-of-flight (ToF) cameras is the ability to measure the distance to each image pixel. Thus, for each pixel, information on both its amplitude and distance to the camera are available. However, technological problems inherent to the acquisition principle lead to inaccuracies in estimating both characteristics: on one hand, there are errors in estimating the distance, especially for far-distance pixels. On the other hand, the detected amplitude decreases with the distance. Part of these inaccuracies are corrected with special camera-calibration software. In this paper, we propose two methods that attempt to further correct each information based on the other one. First, the amplitude image is enhanced by using distance information: a pixel-wise, distance-based correction of the amplitude brings to light details otherwise unnoticeable. Secondly, an amplitude-based distance modification corrects some of the distance estimation errors for far-distance pixels. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 2639681 |
| Page Count | 4 |
| File Format | |
| ISBN | 1424409683 |
| DOI | 10.1109/ISSCS.2007.4292691 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-07-13 |
| Publisher Place | Romania |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Reflectivity Image analysis Image processing Layout Brightness Laboratories Cameras Information technology Pixel Information analysis |
| Content Type | Text |
| Resource Type | Article |
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