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Journal Article
New Compression Method for Full-complex Holograms using the Modified Zerotree Algorithm with the Adaptive Discrete Wavelet Transform
- Authors
- Jin-Kyum Kim, Kyung-Jin Kim, Ji-Won Kang, Kwan-Jung Oh, Jin-Woong Kim, Dong-Wook Kim, Young-Ho Seo
- Issue Date
- 2020-11
- Citation
- Optics Express, v.28, no.24, pp.36327-36345
- ISSN
- 1094-4087
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- In this paper, we propose a new method for coding a full complex hologram with random phase. Since holograms with random phase have very unique spatial and frequency characteristics, a new compression method suitable for such holograms is required. We analyze the frequency characteristics of holograms with random phases and propose a new adaptive discrete wavelet transform (aDWT). Next, we propose a new modified zerotree alogrithm (mZTA) suitable for the subband configuration generated by the modified wavelet transform method. The results of the compression using the proposed method showed higher efficiency than the previous method, and the reconstructed images showed visually superior results.
- KSP Keywords
- Compression method, Discrete wavelet transform(DWT-EE), Frequency characteristics, Higher efficiency, Random phase, Reconstructed image, Wavelet transform method, new method
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
