Method and apparatus of measuring rotational and flight...

Details Method and apparatus of measuring rotational and flight... Method and apparatus of measuring rotational and flight...

2008-03-18

2008-03-18

Ahmed, Samir (Department: 2624)

Image analysis

Applications

Motion or velocity measuring

C382S289000

Reexamination Certificate

active

10681156

ABSTRACT:
A reference posture and a reference position of the imaginary sphere and an arbitrary position are set. The relationship between three-dimensional coordinates and two-dimensional coordinates is derived by using a photographing means. Positions of marks given to the imaginary sphere formed at the coordinates in the three-dimensional space are converted into positions on a two-dimensional image. An operation of displacing a posture of the imaginary sphere relative to the reference posture and the reference position is performed in such a way that the coordinate values of the two-dimensional imaginary marks and the coordinate values of the marks present on the two-dimensional images of the sphere are coincident with each other. The rotational and flight characteristics of the sphere are computed, according to the three-dimensional posture and position at one time and the three-dimensional posture and position thereof at another time.

REFERENCES:
patent: 5471383 (1995-11-01), Gobush et al.
patent: 5479008 (1995-12-01), Nishiyama et al.
patent: 6042483 (2000-03-01), Katayama
patent: 6097472 (2000-08-01), Tanaka et al.
patent: 6226416 (2001-05-01), Ohshima et al.
patent: 7062082 (2006-06-01), Miki et al.

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