Vector Representation of Hyperspectral Data
Project description
pix2vec
Geospatial Vector Representation of Remote Sensing Hyperspectral Data
pix2vec: Vector Representation of Hyperspectral Data Cubes
Free software: GNU General Public License v3
Documentation: https://pix2vec.readthedocs.io.
Features
Produces a vector representation of the raster representation of HSI data ‘cubes’ generated by ISIS
Requirements
a relatively recent ISIS installation
Cite in your work
Frigeri, A. and Hare, T. 2023. Geospatial Vector Representation of Planetary Mapping Spectrometer Data. 6th Planetay Data Workshop, Flagstaff, Arizona 26-28th June 2023, Abstract #7088.
installation
within a working ISIS environment, run:
pip install pix2vect
pix2vec in brief
pix2vect requires spice-initialized ISIS cubes (see spiceinit).
Let’s start with an hyperspectral cube from the The Moon Mineralogy Mapper (M3), the NASA spectrometer onboard Chandrayaan-1 mission to the Moon:
(ISIS) $ pix2vec -i -c M3G20090103T084105_V03_L1B.cub pix2vect - 2023 Alessandro Frigeri - Istituto Nazionale di Astrofisica Cube Type:M3 samples:304 lines:11739 file:M3G20090103T084105_V03_L1B.cub
now we create a vector GIS file representing the geometry of the sensor’s pixel on the lunar surface:
pix2vec -c M3G20090103T084105_V03_L1B.cub -s 152,162 -l5864,5874 -o M3G20090103T084105_V03_L1B_center.gpkg
the vector file can then be loaded in your favorite GIS, and we can plot the PixelValue field:
for each ground-projected pixel, you now have access to these fields:
Filename Sample Line PixelValue RightAscension Declination PlanetocentricLatitude PlanetographicLatitude PositiveEast360Longitude PositiveEast180Longitude PositiveWest360Longitude PositiveWest180Longitude BodyFixedCoordinateX BodyFixedCoordinateY BodyFixedCoordinateZ LocalRadius SampleResolution LineResolution SpacecraftPositionX SpacecraftPositionY SpacecraftPositionZ SpacecraftAzimuth SlantDistance TargetCenterDistance SubSpacecraftLatitude SubSpacecraftLongitude SpacecraftAltitude OffNadirAngle SubSpacecraftGroundAzimuth SunPositionX SunPositionY SunPositionZ SubSolarAzimuth SolarDistance SubSolarLatitude SubSolarLongitude SubSolarGroundAzimuth Phase Incidence Emission NorthAzimuth EphemerisTime UTC LocalSolarTime SolarLongitude LookDirectionBodyFixedX LookDirectionBodyFixedY LookDirectionBodyFixedZ LookDirectionJ2000X LookDirectionJ2000Y LookDirectionJ2000Z LookDirectionCameraX LookDirectionCameraY LookDirectionCameraZ ObliqueDetectorResolution ObliquePixelResolution ObliqueLineResolution ObliqueSampleResolution Error
Documentation
Documentation is available at https://pix2vec.readthedocs.io
Credits
This package was created with Cookiecutter and the audreyr/cookiecutter-pypackage project template.
History
0.1.0 (2023-06-21)
First release on PyPI.
Project details
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