| Description |
ix, 80 leaves : illustrations ; 28 cm. |
| Summary |
"Current technology for wall, ceiling or ground movement monitoring in a mining excavation is accomplished by stretching a device across tunnel openings, which inherently blocks passageways. By utilizing simple image processing techniques, sub-millimeter movement of objects can be monitored using light sources such as lasers, which will not impede traffic through excavation tunnels"--Abstract, leaf iii. |
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