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20 December 2019 Compression of digital holograms with wavelet transform
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Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112090G (2019) https://doi.org/10.1117/12.2542614
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China
Abstract
Holographic three-dimensional display is a true three-dimensional display technology, has been widely used in many fields. But the big data size is a bottleneck of the application of this technology. Compressing the data of hologram is essential and beneficial to the application of holography, such as hologram transmission, holographic display. In this paper, three methods of using wavelet transform for the compression of hologram are considered: 1.using wavelet transform to compress the spatial domain information of hologram; 2. using wavelet transform to compress the amplitude and phase information in frequency domain of hologram; 3.using wavelet transform to compressing the real and imaginary information in frequency domain of hologram. Quantization and entropy coding are used for the wavelet coefficients obtained by the three methods. Numerical experiments on the compression of hologram are performed. The comparative analysis of the three methods of the compression results is performed. The final results of the experimental show that the maximum compression ratios of the three methods are 220.35, 395.17 and 365.38 respectively when the quantization level is 4. The research can give a useful reference in the application of holography.
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhixiang Jiang, Jinbin Gui, Guoqing Wang, and Xiaoyu Jin "Compression of digital holograms with wavelet transform", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112090G (20 December 2019); https://doi.org/10.1117/12.2542614
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