Spinning focal plane array camera particularly suited for real t

Details Spinning focal plane array camera particularly suited for real t Spinning focal plane array camera particularly suited for real t

1997-08-26

1999-04-27

Johns, Andrew W.

Image analysis

Applications

Target tracking or detecting

382324, G06K 900

Patent

active

058987916

ABSTRACT:
A computer vision system is disclosed that utilizes a spinning array of photodetectors. The array is rotated about the focal plane of a lens and scans all the possible orientations and positions of the edges of the unknown object. In one embodiment, the photodetectors are elongated so as to provide for maximum light gathering ability along the direction of elongation and a minimum light gathering ability in the direction perpendicular to the direction of elongation. In other embodiments, optical means are used to focus the image onto conventional photodetectors while still having the ability to more efficiently determine edge segments of unknown objects. The system efficiently and rapidly implements the wavelet projection transform to characterize-multi-scale edge segment features of an image of an unknown object. An imaging radar system that utilizes a spinning antenna system having frequency scanning provisions is also disclosed.

REFERENCES:
patent: 3157855 (1964-11-01), Rabinow
patent: 3833762 (1974-09-01), Gudmundsen
patent: 4338588 (1982-07-01), Chevillat et al.
patent: 5196688 (1993-03-01), Hesse et al.
patent: 5481269 (1996-01-01), Imhoff et al.
patent: 5504487 (1996-04-01), Tucker
patent: 5561431 (1996-10-01), Peele et al.
Flachs et al., "An Automatic Video Tracking System," Proceedings of the I 1977 National Aerospace and Electronics Conf. (NAECON '77), Dayton, OH, May 17-19, 1977, pp. 361-368.

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