Image analysis – Image transformation or preprocessing – Measuring image properties
Reexamination Certificate
2005-05-06
2010-12-28
Le, Brian Q (Department: 2624)
Image analysis
Image transformation or preprocessing
Measuring image properties
C382S228000, C382S103000, C345S419000, C348S222100
Reexamination Certificate
active
07860344
ABSTRACT:
Improved apparatus and methodology for image processing and object tracking that, inter alia, reduces noise. In one embodiment, the methodology is applied to moving targets such as missiles in flight, and comprises processing sequences of images that have been corrupted by one or more noise sources (e.g., sensor noise, medium noise, and/or target reflection noise). In this embodiment, a multi-dimensional image is acquired for a first time step t; the acquired image is normalized and sampled, and then segmented into target and background pixel sets. Intensity statistics of the pixel sets are determined, and a prior probability image from a previous time step smoothed. The smoothed prior image is then shifted to produce an updated prior image, and a posterior probability image calculated using the updated prior probability. Finally, the position of the target is extracted using the posterior probability image. A tracking system and controller utilizing this methodology are also disclosed.
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Fitzpatrick Ben G.
Wang Yun
Gazdzinski & Associates, PC
Le Brian Q
Stochastech Corporation
Tsai Tsung-Yin
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