Changes between Version 20 and Version 21 of Sensors/LeicaLIDAR/MikesNotes


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Timestamp:
Sep 1, 2008 10:40:31 AM (11 years ago)
Author:
mggr
Comment:

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  • Sensors/LeicaLIDAR/MikesNotes

    v20 v21  
    2626
    2727== RCD camera ==
     28
     29The system has a 39 megapixel digital camera, referred to as the "RCD", with the following characteristics:
     30 * 7216x5412 resolution, 12bit [=~57MB raw]
     31 * 60mm lenses (changeable), with 44.2 degree x 34 degree FOV
     32 * pixel size 6.8microns (= ~15cm ground resolution at 1350m)
     33 * 1/4000 exposure time, 2.2s per frame
     34 * serial number 21
     35 * shutter is curtain style, taking 8ms to open and close, so there's a 4ms time difference between the top and bottom of the CCD stopping acquiring light
     36
     37Logfiles contain various handy info, notably the image event file contains GPS time, pos/att and picture id
     38
     39Calibration files are required and supplied by Leica (dark, gain and camera parameters).
     40
     41File name convention is: `''DDHHMMSSXXXXXXG''N.raw`
     42 * DD = day of month
     43 * HHMMSS = timestamp
     44 * XXXXXX = incrementing picture id
     45 * G = gain (1-4)
    2846
    2947=== Orthophotos ===