Changes between Version 9 and Version 10 of Sensors/LeicaLIDAR/FWMarksNotes


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Timestamp:
Jan 26, 2010, 12:06:11 PM (14 years ago)
Author:
mark1
Comment:

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  • Sensors/LeicaLIDAR/FWMarksNotes

    v9 v10  
    2828 * Waveform and discrete data use different scalers for the intensity values and so will result in different intensities.
    2929 * AGC is constant for a pulse - so the same value is used for the entire waveform
     30 * There is a slight delay between SCN files and waveform files being recorded (< 1 second). This may result in first few points not having waveform data.
    3031
    3132== Software ==
    … …  
    3940  * In waveviewer "Ret point loc" is the discrete return time (from emit to receive) for the first return
    4041  * intensity is the value for each discrete return
    41 
     42 * LASHistoViewer is useful for viewing stats of LAS file. Can also "drag and drop" Flightline_log into it to see info and stats together.
    4243 * New version of Terrascan capable of displaying full waveform data and "creating extra" points from the waveform
    4344
    … …  
    7879   * draws a coloured vector onto the design file depending on the waveform intensity. To remove it, you need to select the line and delete it.
    7980   * ambient noise - change the threshold level of noise for colour coding the waveform vector
     81  * extract data - allows new points (returns) to be created from the waveform data
     82   * can export the waveforms as txt files for further analysis in other software
     83
     84== RCD105 ==
     85 * Enhancements
     86  * CCD format is now full frame - allows improved radiometric calibration
     87  * software fixes
     88  * solid state disks
     89 * Now use the entire CCD area for radiometric calibration for better left/right balancing. The boundary is trimmed off in post-processing.
     90 * Creates a distortion free image (tries to model lens distortion and uses a DTM)
     91 * Filename convention change - files automatically renamed
     92 * RCD workflow manager software looks useful - includes ORIMA dll file for running APM (?)
     93 * New software should handle pixel saturation better and supports 2 CCD sizes