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Proceedings Paper

Image watermarking algorithm applied to free space optical communication
Author(s): Jing-feng Zang; Fu-chang Yin; Zhi-qi Lin
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Paper Abstract

The AGWN model, based on the atmospheric attenuation and turbulence effect is present. In the paper, a robust image watermark technology is proposed based on extended set partitioning in hierarchical trees algorithm (ESPIHT) and low density Parity check codes (LDPC). The Watermarking Algorithm is applied in the free space optical communication (FSO) by Joint Source-Channel Coding (JSCC), and simulated in BPSK modulation over AWGN channel and different level error correction channel coding. The results of simulation show that the presented algorithm is effective and robust to common image processing operations and some distortions such as cropping, pinching, pixel-shifting and so on. And it has strong error correction performance in burst errors and random errors, so it is appropriate for complicated environment of FSO.

Paper Details

Date Published: 28 August 2009
PDF: 6 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73821C (28 August 2009); doi: 10.1117/12.834102
Show Author Affiliations
Jing-feng Zang, Changchun Univ. of Science and Technology (China)
Fu-chang Yin, Changchun Univ. of Science and Technology (China)
Zhi-qi Lin, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

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