A novel application of a phase only filter model, which is implementable in the optical domain, is proposed. In this application, automated target tracking is accomplished with a novel sub-imaging technique with correlation tracking inside a radius of interest. In this technique the image is subdivided and the correlation is tracked by comparing only the autocorrelation of the filter with itself. A radius of interest is used to reduce the number of computations required to track a moving target. Real-world video images are used to demonstrate the performance of the model.
© 2003 Optical Society of America
Karl S. Gudmundsson and Abdul Ahad S. Awwal, "Sub-Imaging Technique to Improve Phase Only Filter Search Capability," Appl. Opt. 42, 4709-4717 (2003)