Video library for video imaging detection at intersection stop lines.
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2010-04-01
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Alternative Title:Project title: Guidelines for best use of video detection for stop bar presence detection
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NTL Classification:NTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLS;NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices;NTL-SAFETY AND SECURITY-Highway Safety;
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Abstract:The objective of this activity was to record video that could be used for controlled
evaluation of video image vehicle detection system (VIVDS) products and software upgrades to
existing products based on a list of conditions that might be difficult to find in a timely manner.
This library allows the user to present a wide range of weather, roadway, and lighting conditions
to a VIVDS product in real time. The idea involves capturing the video and playing the recorded
video through a VIVDS processor to determine the accuracy or change in accuracy to compare
against a test protocol and/or verify claims of manufacturers. The test conditions include
situations that are not easily obtainable and that might be particularly challenging for current
detectors.
This research task anticipates that TxDOT will encounter situations fairly often in which
the desired conditions for full-scale field testing of VIVDS are not available or where quick
turnaround tests are needed. There may be a need for a quick decision on a firmware upgrade or
on a new product to establish at least an initial and preliminary basis for forming a decision on
success or failure. There will probably be occasions where these initial results using the video
library need to be verified by field testing if the desired conditions become available or if time
and other resources allow such testing. TxDOT might want to establish a formal policy for the
use of the library and conditions in which field testing might be desirable.
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