Application Of Binary Phase-Only Filters To Machine Vision

David Flannery; John Loomis; Mary Milkovich

doi:10.1117/12.947797

8 February 1989 Application Of Binary Phase-Only Filters To Machine Vision

David Flannery, John Loomis, Mary Milkovich

Proceedings Volume 0960, Real-Time Signal Processing for Industrial Applications; (1989) https://doi.org/10.1117/12.947797
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States

Abstract

Recent advances, including binary phase-only filters (BPOF) implemented with suitable real-time devices, have enhanced the potential of coherent optical correlation for pattern and object recognition and object location functions which are important in machine vision applications. Hybrid (optical/electronic) systems performing complex vision operations such as recognition, location, and discrimination at attractive rates are portended by these developments. Laboratory systems have demonstrated attractive real-time performance including good agreement with computer models and the application of "smart filter" techniques to improve the distortion invariance of individual filters. Improved smart filter formulations are under development. These combined with high correlation throughput define the high potential of BPOF correlation systems for this type application.

Citation Download Citation

David Flannery, John Loomis, and Mary Milkovich "Application Of Binary Phase-Only Filters To Machine Vision", Proc. SPIE 0960, Real-Time Signal Processing for Industrial Applications, (8 February 1989); https://doi.org/10.1117/12.947797

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