Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1995-10-06
1998-07-28
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345145, G09G 508
Patent
active
057868042
ABSTRACT:
A method and system for tracking attitude of a device includes fixing a two-dimensional array of photosensors to the device and using the array to form a reference frame and a sample frame of images. The fields of view of the sample and reference frames largely overlap, so that there are common imaged features from frame to frame. Sample frames are correlated with the reference frame to detect differences in location of the common features. Based upon detection of correlations of features, an attitudinal signal indicative of pitch, yaw, and/or roll is generated. In the preferred embodiment, the attitudinal signal is used to manipulate a screen cursor of a display system, such as a remote interactive video system (RIVS). However, attitudinal tracking using the invention may be employed in other applications. Another aspect of the invention is that the two-dimensional array is configured to compensate for any curvilinear distortions introduced by a lens system for imaging the features within the field of view of the array.
REFERENCES:
patent: 5045843 (1991-09-01), Hansen
patent: 5363120 (1994-11-01), Drumm
patent: 5388059 (1995-02-01), DeMenthon
patent: 5546128 (1996-08-01), Nakagakiuchi
patent: 5574479 (1996-11-01), Odell
Croll Timothy Rex
Hewlett--Packard Company
Hjerpe Richard
Laneau Ronald
LandOfFree
Method and system for tracking attitude does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for tracking attitude, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for tracking attitude will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-26418