Complex Fresnel field retrieved from a digital off-axis Fresnel hologram is encrypted. Object information is directly decrypted in a single step. The noisy nature of the Fresnel field is helpful for single random phase encoding. © 2006 Optical Society of America.

Anith Nelleri

Electronics

School of Electronics Engineering

Chennai Campus

J. Joseph

K. Singh

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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Journal	Optics InfoBase Conference Papers
Publisher	Optical Society of America (OSA)
ISSN	21622701