Image watermarking algorithm applied to free space optical communication

Jing-feng Zang; Fu-chang Yin; Zhi-qi Lin

doi:10.1117/12.834102

28 August 2009 Image watermarking algorithm applied to free space optical communication

Jing-feng Zang, Fu-chang Yin, Zhi-qi Lin

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73821C (2009) https://doi.org/10.1117/12.834102
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

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.

Citation Download Citation

Jing-feng Zang, Fu-chang Yin, and Zhi-qi Lin "Image watermarking algorithm applied to free space optical communication", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73821C (28 August 2009); https://doi.org/10.1117/12.834102

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