David Hemphill
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Articles
Votes on activity by David Hemphill-
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
Place Order for existing Vessel Detection product from archive An EXISTING Vessel Detection analytic product can be ordered through the Console UI in the same manner as any archive imagery in the C...
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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 File Descriptions
Vessel Detection Files Each vessel detection analytic produces a set of files. The screen shot shows the download options from the Capella Console order page. The files are described below. F...
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Areas of Interest Quantity Limits
The number of AOIs that may be created are limited based on contract terms. There are two AOI limits to be aware of: Active or Paused AOIsA contract-specified number of AOIs may be active (or paus...
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Area of Interest Size and Shape Limits
The Analytic system restricts the size of an AOI based on the bounding box of the polygon(s) defining the AOI boundary. The following examples show both the AOI boundary and the bounding box. The b...
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Area of Interest Geographic Limits
Global Change Monitoring is limited to where Sentinel-1 data is available. While is is possible to create Areas of Interest over any location on the globe using the Capella Analytics App, the deliv...