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Optical interpolation and differencing of 2-D image data

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Abstract

We present a new 1-D acoustooptic architecture to subtract two signals that are subpixel shifted. The architecture allows for optical interpolation and electrical control of the shift between frames. We demonstrate the use of 1-D projections of 2-D image frames to achieve subpixel shifts and interpolation between successive image frames for the purpose of detecting and tracking subpixel sized targets.

© 1989 Optical Society of America

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