Data collected by UAVs has become invaluable to projects of all scopes and sizes.
However, as the number of UAVs collecting data has increased, so have problems related
to the quality of the data collected. With a multitude of different sensor packages and
flight platform characteristics, not to mention varying operator piloting skills, how can
you ensure that the captured data will meet the needs of your downstream analysis?
PrecisionPass performs a metadata
review to ensure all required metadata
are present and are within the specified
criteria for the capture. The criteria
can be configured to contain items
such as positional information, camera
parameters, timestamps, bit depth, and
PrecisionPass reviews the spacing along
and between flight lines to ensure that
there is proper overlap and sidelap for
stitching and analysis purposes. The toolkit
can also find gaps between scan lines and
compare the collection to a bounding
polygon to ensure proper coverage.
Capture area assessment for frame camera.
Harris leveraged its decades of experience
developing algorithms that analyze
satellite image quality to create this toolkit
that similarly analyzes the quality of UAV
data. PrecisionPass can determine the
minimum, maximum, and average ground
sample distance (GSD) for each pixel.
This ensures that the spatial resolution
required for analysis will be met.
Using advanced image analysis
techniques, PrecisionPass can identify
the presence of over- and undersaturation
as well as insufficient contrast
levels. PrecisionPass can also rapidly
produce an image mosaic for quality
assessment and in-the-field analysis.
Corning hyperspectral push-broom imagery of an orchard. Red lines indicate a larger than 5cm gap between scan lines (i.e. the minimum allowable gap for this mission).
MicaSense imagery of a potato field. Collection statistics on the right hand side indicate that some collection criteria was achieved and others were not.
PrecisionPass can analyze all images
or scan lines to remove unneeded
and poor-quality data. This includes
excessive overlap, off-nadir imagery, and
extraneous data outside of the capture
PrecisionPass can package your data so
it can easily be uploaded and ingested
into your analysis workflow. Lossless
compression can be performed to diminish
the time lost during file transfer.
PrecisionPass has an easy to use interface
that assists pilots in assessing their capture
and helps them improve their capture
techniques over time.
The parameters in PrecisionPass can be
easily configured to help you get the exact
information you need.
PrecisionPass Data Sheet (pdf)
see how PrecisionPass can help you quickly and easily verify your data quality.