Pictures for radiologic reports: use of a hand-held image scanner

Registration of surfaces minimizing error propagation for a one-shot multi-slit hand-held scanner

We propose an algorithm for the on-line automatic registration of multiple 3D surfaces acquired in a sequence by a new hand-held laser scanner. The laser emitter is coupled with an optical lens that spreads the light forming 19 parallel slits that are projected to the scene and acquired with subpixel accuracy by a camera. Splines are used to interpolate the acquired profiles to increase the sam...

A three-band hand-held radiometer for field use.

A self-contained, hand-held radiometer designed for field use has been constructed and tested. The 4.5-kilogram device, consisting of a strap-supported electronics module and a hand-held probe containing three sensors, is powered by flashlight and transistor radio batteries, uses two silicon and one lead sulfide detector, has three liquid-crystal displays, features sample-and-hold radiometric s...

A Hand-held Optical Surface Scanner for Environmental Modeling and Virtual Reality

TwicPen: Hand-held Scanner and Translation Software for non-Native Readers

TwicPen is a terminology-assistance system for readers of printed (ie. off-line) material in foreign languages. It consists of a hand-held scanner and sophisticated parsing and translation software to provide readers a limited number of translations selected on the basis of a linguistic analysis of the whole scanned text fragment (a phrase, part of the sentence, etc.). The use of a morphologica...

A Hand-held Laser Scanner based on Multi-camera Stereo-matching

Most laser scanners in engineering are extended versions of tactile measuring machines. These high precision devices are typically very expensive and hardware modifications are not possible without impairing the precision of the device. For these reasons we built our own laser-scanner system. It is based on a multi-camera reconstruction system developed for fast 3D face reconstructions. Based o...