Field Marker Targets for iWitness

Field Marker Targets (FMTs) can be used with both iWitness & iWitnessPRO photogrammetry software systems. FMTs are designed for law enforcement photogrammetric measurement in tall field grass, typically adjacent highway shoulders and median areas involving vehicle crash evidence. FMTs work excellent with iWitness when combined with natural feature marking or with the Weighted Style PM's and/or Cone Style PM's. Other image-based surveying uses of FMTs include the investigation of outdoor burn (char) patterns, accomplished by fire investigators.


Below, a Trooper from the Indiana State Police uses iWitness with the weighted-style PM's, cone-style PM's and the FMTs. Indiana S.P. were able to accurately map the interstate incident faster using image-based measurement by one trooper vs. two troopers using a total station. For an expanded view click here.


Indiana Trooper Maps with FMTs & iWitness

FMTs consist of a fiberglass rod 32" (81cm) long, with a detachable white dot-marker placard that is semi-automatically measured to sub-pixel accuracy within iWitness. The photogrammetric white dots are concentric to each side. The placard can optionally be removed for storage, based on the two retaining clips. FMTs are durable and easy to deploy in the field.


FMTs are temporarily staked by simply pushing them into the ground for 3D photogrammetric measurement use.

XYZ Target projection to the ground:
The "Point Offset" tool within iWitness is used to automatically (and accurately) calcuate the ground surface relative to the height of the FMTs white targets.

Pricing:
FMTs are sold as a set of 20 units for $169.00.

Shipments are typically made within 48 hours of receipt of the order.

To order, use the On line method

Delivery Time:
In the U.S. A., FMTs are shipped and arrive to their destination within 5 business days.

For International orders of FMTs, please contact us and we will provide you pricing and payment options. International orders typically arrive to their destination within 10 business days.