[pgpointcloud] Full waveform data

[Kevin Beam]

Thank you Rémi-C. You described those solutions very well. At this point
we are only trying to determine the feasibility of full waveform data
using pgpointcloud and won't be implementing it yet. But if we do, I
think the two solutions you've outlined below are where we will start.

As an aside, we *very much* appreciated your paper with Perret and
Paparoditis earlier this year in ISPRS Journal of Photogrammetry and
Remote Sensing. It was very helpful to us in our prototype.

Cheers,
Kevin

On 01/10/2017 06:44 AM, Rémi Cura wrote:
>  - (super simple) use pgpointcloud as-is to store bounds of samples
> position/time per waveform . The samples are stored elsewhere (blob, or
> simply array of char), and the waveform geometric information (geometry of
> the laser ray) is stored in base.
> This allows you to use pgpointcloud with fast index to find the relevant
> samples, then when you want to use the ful waveform, you get the
> appropriate data and use your custom solutions.
> 
>  - (need some work) add a new type of point dimension to pgpointcloud to
> directly store the full waveframe samples in pgpointcloud, (the waveform
> samples are all stored in one dimension of the point), and some utilitary
> functions may be able to generate the samples as 3D points (with each
> sample being a point with intensity).

-- 
Kevin Beam
kbeam at nsidc.org
Software Engineer
National Snow and Ice Data Center (NSIDC)
University of Colorado Boulder

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