Peer-Reviewed Journal Details
Mandatory Fields
Naughton, TJ;Javidi, B
2004
October
Optical Engineering
Compression of encrypted three-dimensional objects using digital holography
Published
87 ()
Optional Fields
OPTICAL-IMAGE ENCRYPTION PHASE QUANTIZATION RECOGNITION RECONSTRUCTION INFORMATION SYSTEM INTERFEROMETRY DOMAIN
43
2233
2238
We present the results of applying data compression techniques to encrypted three-dimensional objects. The objects are captured using phase-shift digital holography and encrypted using a random phase mask in the Fresnel domain. Lossy quantization is combined with lossless coding techniques to quantify compression ratios. Lossless compression alone applied to the encrypted holographic data achieves compression ratios lower than 1.05. When combined with quantization and an integer encoding scheme, this rises to between 12 and 65 (depending on the hologram chosen and the method of measuring compression ratio), with good decryption and reconstruction quality. Our techniques are suitable for a range of secure three-dimensional object storage and transmission applications. (C) 2004 Society of Photo-Optical Instrumentation Engineers.
BELLINGHAM
0091-3286
10.1117/1.1783280
Grant Details