Traffic monitoring using satellite and ground data : preparation for feasibility tests and an operational system, final report.
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2000-04-01
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Edition:Final report.
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Abstract:Satellite imagery could conceivably be added to data traditionally collected in traffic monitoring programs to allow wide spatial coverage unobtainable from ground-based sensors in a safe, off-the-road environment. Previously, we estimated that 1-m resolution panchromatic imagery should allow accurate vehicle counts and rough vehicle classifications, while large vehicles might be accurately detected with only 4-m resolution. At least three private groups are planning to market such high-resolution satellite data in the near future, but several issues must be addressed before these data could be used to complement traffic monitoring programs. This report addresses the following issues: demonstrating that vehicles can be identified and classified accurately from satellite imagery; developing efficient image processing methods; and determining methods to integrate the imagery with ground-based data and assessing the value of this integration.
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