For immediate release
Kansas Highway Patrol Implements iWitness
Image-based 3D measurement improves accident documentation
Bellevue, WA. - August 21, 2006 - DeChant Consulting Services (DCS), provider of the versatile close-range photogrammetry system iWitness, has announced the Kansas Highway Patrol (KHP) has made a decision to adopt iWitness statewide as an important component of their standard operating procedure for accident reconstruction and documentation. This fall’s implementation of iWitness, which facilitates much faster accident scene recording, is expected to both significantly reduce road closure times for accident events and lessen the likelihood of secondary accidents.
KHP has secured $26,000 of federal funding to support the introduction of iWitness into its operations. This grant will enable state troopers to be equipped and trained by DCS in the operation of this easy-to-use photogrammetry system. With iWitness technology, the recording of a traffic accident requires only a consumer-grade digital camera and DCS-designed evidence markers. After the very rapid image recording is completed at the accident scene, the 3D measurement phase is undertaken back at the office. This enables traffic disruption to be kept to a minimum and so enhances safety for both KHP and emergency services personnel, as well as motorists held up by the accident. Based on the success achieved by other state agencies using iWitness, KHP’s on-scene documentation time is expected to be reduced by at least 50% as compared to traditional measurement methods.
The iWitness process commences with state troopers taking multiple images at the crash scene from different camera angles. These images are then processed within iWitness on a desktop or notebook PC to generate the 3D measurements of important features to support a dimensional reconstruction of the accident. This semi-automated process results in measurement accuracies that are generally around 1 inch over scene sizes of 100 yards or more. The robustness, reliability and accuracy of the photogrammetric measurement technology is an important factor for both accident analysis and any subsequent legal proceedings.
KHP will join a growing list of state police/patrols, county sheriff offices and city police departments around the country that routinely use iWitness. Following the lead of the highway patrols of Florida, New Hampshire and Minnesota, KHP will be the fourth state police agency to adopt iWitness as the primary statewide measurement tool for 3D documentation of evidence and accident scene mapping.
“Using iWitness, we’re now able to map the crash in better than half the time that we’ve spent in the past using other methods…It’s exactly the tool we’ve needed to improve our traffic incident management”, said Corporal Dave Templeton, Certified Accident Reconstructionist - Traffic Homicide Investigator of the Florida Highway Patrol, in a recent interview.
Lee DeChant, President of DeChant Consulting Services, has implemented close-range photogrammetry systems across the US and believes iWitness is the optimal image-based mapping technology for accident reconstruction, based on its low-cost, robust online data processing and its simple operation. DeChant Consulting Services has assisted numerous state and local police departments to implement photogrammetry technology, as it becomes a standard for police accident documentation and forensic measurement.
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