Error-diffused quantization in cell-oriented holograms

Ramesh Nagarajan; Roger L. Easton Jr.; Reiner Eschbach

doi:10.1117/12.206232

12 April 1995 Error-diffused quantization in cell-oriented holograms

Ramesh Nagarajan, Roger L. Easton Jr., Reiner Eschbach

Proceedings Volume 2406, Practical Holography IX; (1995) https://doi.org/10.1117/12.206232
Event: IS&T/SPIE's Symposium on Electronic Imaging: Science and Technology, 1995, San Jose, CA, United States

Abstract

Error diffusion is a useful tool for quantizing N-dimensional data. For complex-valued amplitudes (N equals 2), error diffusion has been used to improve reconstruction of hologram of objects with added random phase. In this paper, the stability of holograms obtained by conventional independent quantization and error-diffused quantization are tested under varying conditions of quantization and for several types and sizes of images. The restoration of missing high-frequency components due to feedback of the error improves the reconstruction of objects even without a random phase. The results are improved further by coupling error diffusion with a nonuniform quantization.

Citation Download Citation

Ramesh Nagarajan, Roger L. Easton Jr., and Reiner Eschbach "Error-diffused quantization in cell-oriented holograms", Proc. SPIE 2406, Practical Holography IX, (12 April 1995); https://doi.org/10.1117/12.206232

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