David Hemphill
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Activity overview
Latest activity by David Hemphill-
David Hemphill created an article,
Aircraft Detection Metadata Fields
Field Name Example or range Description Class name Airplane | Helicopter The class of object detected by the analytic. Aircraft size I - VI Relative size approximation of...
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David Hemphill created an article,
Aircraft Detection File Descriptions
File Content File Type Naming Structure Description Aircraft Detections (Thresholded) GeoJSON <file_name>.geojson* Primary User Product. Aircraft detections are filtered to include ...
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David Hemphill created an article,
OpenStreetMap (OSM) Water Layer Rasterized GeoTiff Map
Usage: Capella Space uses OpenStreetMap (OSM) Water Layer to create land masks for filtering Vessel Detections over land masses. Attribution: Capella Space Land & Water Masks are a modified versio...
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David Hemphill created an article,
Vessel Relative Sizing
Vessel Detection categorizes each vessel detection into a size range for relative comparison when counting or filtering. The following table defines the ranges for each size label. The size label d...
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David Hemphill created an article,
Tasking with Vessel Detection (Console )
Vessel detection may be requested when tasking collects by selecting the analytic as part of the tasking request. If selected, the Vessel Detection product will be automatically generated with the ...
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David Hemphill created an article,
Order Vessel Detection Products using Capella Console
The Capella Console is used to search and find vessel detection products. To order for download or push to S3, select the vessel detection products and add them to the shopping basket. Complete the...
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David Hemphill created an article,
Searching and Viewing Vessel Detection Products using the Capella Console
Vessel detection analytic products are available through the Capella Console search. Vessel detection products may be viewed in console along with the source imagery. The following screen shot sho...
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David Hemphill created an article,
Tasking with Vessel Detection (API)
To include Vessel Detection on a tasking request, submit using the /task API endpoint with a payload tag specifying Vessel Detection ("VS" is the product code). Details on how to make a tasking req...
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David Hemphill created an article,
Object Detection Metrics Overview
Term Description Example Precision Precision is a measure of usefulness as it measure the rate of true positives (objects detected are actually vessels) If one out of every 4 vessels de...
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David Hemphill created an article,
Vessel Detection Metadata Fields
Field Name Example or range Description Class name Vessel We currently support one class, which is Vessel (presence) Vessel size XS, S, M, L, XL Relative size approximation...