30 September 1996 Moving target recognition and tracking with photofractive joint transform correlator
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Proceedings Volume 2896, Photorefractive Materials; (1996); doi: 10.1117/12.253227
Event: Photonics China '96, 1996, Beijing, China
Abstract
A new photorefractive joint transform correlator architecture using a photorefractive crystal as a reference image storage or sequentially image updating device instead of a joint transform power spectrum recording element is proposed. Three novel and simple methods for moving target recognition and tracking with this architecture are introduced: (1) correlation with single fixed reference image; (2) correlation with a fixed synthetic reference image; (3) adaptive correlation with a sequentially updated reference image. Some specific considerations concerning the recording-erasing property of the crystals and the principle of adaptive tracking are analyzed and discussed. Preliminary experimental studies are made to verify the effectiveness of these methods, the results are in full agreement with our theoretical expectations.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yurong Wang, Luzhong Cai, Hao Wang, Chengshan Guo, Hua-Kuang Liu, "Moving target recognition and tracking with photofractive joint transform correlator", Proc. SPIE 2896, Photorefractive Materials, (30 September 1996); doi: 10.1117/12.253227; https://doi.org/10.1117/12.253227
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KEYWORDS
Target recognition

Joint transforms

Image storage

Optical correlators

Transparency

Crystals

Image processing

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