Rod shaped device and data acquisition apparatus for determining

Details Rod shaped device and data acquisition apparatus for determining Rod shaped device and data acquisition apparatus for determining

1995-10-19

1998-10-06

Lao, Lun-Yi

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345179, G09G 508

Patent

active

058184244

ABSTRACT:
A rod-shaped device for spatial data acquisition includes a shank (1) with at least two separated, substantially identical marker field structures (3, 4) on the surface of the shank (1). The marker field structures (3, 4) are resolvable for imaging purposes by an optical position and orientation determination system for determining the position and orientation of an object in space. That system includes imaging apparatus (5) with a field of vision containing the rod-shaped device to capture position data of the rod shaped device. A computer (6) connected to the image apparatus receives the position data and calculates the position and orientation of the object in space.

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patent: 5162781 (1992-11-01), Cambridge
patent: 5227985 (1993-07-01), DeMenthon
patent: 5297061 (1994-03-01), Dementhon et al.
patent: 5469193 (1995-11-01), Giobbi et al.
European Search Report 94 11 9480.

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