Optical position detecting unit and optical coordinate input unit

作者: Yasuji Ogawa

DOI:

关键词: Computer visionImage (mathematics)Signal processingUnit (ring theory)Code (cryptography)Basis (linear algebra)Position (vector)Point (geometry)Artificial intelligenceOpticsPickupGeography

摘要: An optical position detecting unit which includes: an image pickup device having a pixel array region, imaging lens for forming of light-emitting point, converging light come from the point formed by onto pattern member contains code information uniquely corresponding to and disposed on path at near image, signal processing extracting using contained in projected region basis data generated pattern.

参考文章(18)
Barry Bronson, Projected image light pen ,(1990)
Scott D. Schuette, Wayne A. Mueller, Cordless digital graphics input device ,(1983)
David P. Kelso, Gregg Vanderheiden, Jon Gunderson, Long range optical pointing for video screens ,(1983)
Stephen Joy Boies, Todd Kanner Rodgers, William Edward Bennett, Anthony Robin Davies, Karl-Friedrich Etzold, Optical stylus and passive digitizing tablet data input system ,(1990)