High-speed holographic correlation system by a time-division recording method for copyright content management on the internet

Eriko Watanabe; Kanami Ikeda; Kashiko Kodate

doi:10.1117/12.929690

15 October 2012 High-speed holographic correlation system by a time-division recording method for copyright content management on the internet

Eriko Watanabe, Kanami Ikeda, Kashiko Kodate

Author Affiliations +

Proceedings Volume 8498, Optics and Photonics for Information Processing VI; 84980A (2012) https://doi.org/10.1117/12.929690
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Using a holographic disc memory on which a huge amount of data can be stored, we constructed an ultra-high-speed, all-optical correlation system. In this method, multiplex recording is, however, restricted to “one page” on “one spot.” In addition, signal information must be normalized as data of the same size, even if the object data size is smaller. Therefore, this system is difficult to apply to part of the object data scene (i.e., partial scene searching and template matching), while maintaining high accessibility and programmability. In this paper, we develop a holographic correlation system by a time division recording method that increases the number of multiplex recordings on the same spot. Assuming that a four-channel detector is utilized, 15 parallel correlations are achieved by a time-division recording method. Preliminary correlation experiments with the holographic optical disc setup are carried out by high correlation peaks at a rotational speed of 300 rpm. We also describe the combination of an optical correlation system for copyright content management that searches the Internet and detects illegal contents on video sharing websites.

Citation Download Citation

Eriko Watanabe, Kanami Ikeda, and Kashiko Kodate "High-speed holographic correlation system by a time-division recording method for copyright content management on the internet", Proc. SPIE 8498, Optics and Photonics for Information Processing VI, 84980A (15 October 2012); https://doi.org/10.1117/12.929690

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