David Hemphill
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Articles
Votes on activity by David Hemphill-
Creating an Area of Interest
Analytics applies algorithms to an Area of Interest (AOI). The AOI is central to analytics as it defines the geographic boundary of interest. AOIs may be created by directly drawing the boundary on...
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Screens and Navigation
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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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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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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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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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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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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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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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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 T-shirt size approximation ...