Efficient Compression of Digital Holograms for Internet Transmission of Three-Dimensional Images
Naughton, Thomas J. and McDonald, John B. and Javidi, Bahram (2004) Efficient Compression of Digital Holograms for Internet Transmission of Three-Dimensional Images. LEOS Newsletter: special issue on hot topics in electro-optical sensors and systems, 18 (1). pp. 9-10.
We compress phase-shift digital holograms (whole Fresnel fields) for the transmission of three-dimensional images. For real-time networking applications, the time required to compress can be as critical as compression rate. We achieve lossy compression through quantization of both the real and imaginary streams, followed by a bit packing operation. We define a speedup metric that combines space gains due to compression with temporal overheads due to the compression routine and transmission serialization. We empirically verify transmission speedup due to compression, using a special-purpose Internet-based networking application.
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