Ideas for fast and cheap object capture

Philip C. D. Hobbs

doi:10.1117/12.334327

29 December 1998 Ideas for fast and cheap object capture

Philip C. D. Hobbs

Proceedings Volume 3520, Three-Dimensional Imaging, Optical Metrology, and Inspection IV; (1998) https://doi.org/10.1117/12.334327
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

This paper is a preliminary description of three technologies for use in scanning and printing. There aren't a lot of experimental data here, unfortunately, because the ideas are new. They came out of a current effort to build a pocket-sized, battery-operated, non-contact 3D input device. The concept of this pocket 3D scanner is to allow someone to take simultaneous range and intensity images of a 10-50 cm diameter area in half a second, store a hundred or so of them, then play them back into a PC IR pot for OCR, printing, archival storage, or further processing. Such areas include flat or crinkled paper, hands and faces, machined parts, textures, and many others. Besides their use in input devices, these technologies could greatly improve the performance of low-end printers, at very low cost. None of these techniques is yet at a high state of development. The first is a scanning technique that should allow increasing pixel rates by a factor of 10 or more without significant additional optical or mechanical complexity; the second is an extremely fast focus actuator that should reduce the field flatness and accuracy requirements of the scan lens and scanner assembly, by allowing fast focus correction even within a scan line; an the third is a 'mass customizing' wavefront aberration correction method for producing very high quality laser beams from low quality optics, without requiring any hand work.

Citation Download Citation

Philip C. D. Hobbs "Ideas for fast and cheap object capture", Proc. SPIE 3520, Three-Dimensional Imaging, Optical Metrology, and Inspection IV, (29 December 1998); https://doi.org/10.1117/12.334327

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