Changes between Version 15 and Version 16 of Sensors/LeicaLIDAR/MashUp
- Timestamp:
- Jun 11, 2009, 11:04:27 AM (15 years ago)
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Sensors/LeicaLIDAR/MashUp
v15 v16 291 291 * The value is measured in "ticks" and will appear quite high as the shaft encoder has a high resolution (order of millions of ticks). 292 292 * Measured in factory and provided by Leica. 293 * Can be easily checked on the ground by following this procedure: 294 * Start up the system on the ground (no GPS or installation required) 295 * run BIT mode 296 * turn off 'Position In' switch on the front panel - this will allow to snap the mirror on the centre 297 * Read F4's tick column, it should show real scan offset and it should be within +/- 500 ticks from the -10800 value 298 * turn on 'Position In' switch when finished 293 299 294 300 … … 308 314 * An accurate ground survey (see below). 309 315 * Slow overflight for maximum point density. 316 310 317 311 318 … … 471 478 * Try to select areas where you can use the nearby geometry to help you 472 479 * e.g. follow straight road edges to where they intersect another feature, so you have more than just one pixel to guide you to the intersection point in other images 480 473 481 * avoid using building edges (perspective shifts) 474 482 * Location of tie points … … 602 610 * We can use TerraScan for creating projects, showing trajectories, splitting and combining LAS files. 603 611 * Create new project – “first button” -> “offset stacked rectangle button” 612 604 613 * file -> new 605 614 * select LAS storage