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Object Analyst Feasibility Study on Per Parcel Stormwater Taxation

Feasibility Study By Object Analyst For Parcel-based Stormwater Taxation.

June 29, 2021 By: CATALYST
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CATALYST has a full set of object-based image analysis (OBIA) tools that can be used to quickly and accurately extract impermeable land area on a per parcel basis. Imagery is segmented based on the shape and spectral properties of features, and training sites representing impermeable and permeable classes are collected.


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It was found that using CATALYST’s OBIA tools reduced processing time by 93% and generated results with 88% accuracy compared to manual digitization.


OBIA was performed on 30 residential parcels in the Eatonville neighborhood of Toronto using Geomatica Object Analyst. Generating a vector layer of impermeable area took 20 minutes total.

About Catalyst

CATALYST is a PCI Geomatics brand, which has been introduced to put our leading edge technology into the hands of decision makers.  We’re a startup – with hundreds of algorithms, scalable solutions, and decades of experience.

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• Automated counting of aircraft • Automated monitoring of cargo facilities, train yards • Automated monitoring of shipping and docking areas • Automated vehicle counting • Monitor competitor equipment and other features of interest

Other OBIA Applications

By: CATALYSTJune 29, 2021