3D human interface apparatus using motion recognition based on dynamic image processing

Patent 5581276 Issued on December 3, 1996. Estimated Expiration Date:

December 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 117930 filed on 09/08/1993

US Classes:

345/156, DISPLAY PERIPHERAL INTERFACE INPUT DEVICE345/634Image based

Examiners

Primary: Weldon, Ulysses

Attorney, Agent or Firm

Foley & Lardner

Foreign Patent References

3-006780 JP. 01/25/1991
3-006782 JP. 01/25/1991

International Class

G09G 005/00

Foreign Application Priority Data

1992-09-08 JP

Abstract

A 3D human interface apparatus using a motion recognition based on a dynamic image processing in which the motion of an operator operated object as an imaging target can be recognized accurately and stably. The apparatus includes: an image input unit for entering a plurality of time series images of an object operated by the operator into a motion representing a command; a feature point extraction unit for extracting at least four feature points including at least three reference feature points and one fiducial feature point on the object, from each of the images; a motion recognition unit for recognizing the motion of the object by calculating motion parameters, according to an affine transformation determined from changes of positions of the reference feature points on the images, and a virtual parallax for the fiducial feature point expressing a difference between an actual position change on the images and a virtual position change according to the affine transformation; and a command input unit for inputting the command indicated by the motion of the object recognized by the motion recognition unit.

Other References

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