Optical image compression and encryption methods

Optical image compression and encryption methods

Compressive Optical Image Encryption

An optical image encryption technique based on compressive sensing using fully optical means has been proposed. An object image is first encrypted to a white-sense stationary noise pattern using a double random phase encoding (DRPE) method in a Mach-Zehnder interferometer. Then, the encrypted image is highly compressed to a signal using single-pixel compressive holographic imaging in the optica...

Autosophy data / image compression and encryption

Multimedia data may be transmitted or stored either according to the classical Shannon information theory or according to the newer Autosophy information theory. Autosophy algorithms combine very high "lossless" data and image compression with virtually unbreakable "codebook" encryption. Shannon's theory treats all data items as "quantities", which are converted into binary digits (bit), for tr...

Image compression and encryption using tree structures

This paper outlines our project on image coding for mobile wireless environments. The mobile, or even portable, system has a limited computation power, but deals with a large quantity of image data and a public-accessible transmission task. Thus the system must be simple, and perform compression and encryption at the same time. We investigate hierarchical data structures and related algorithms....

Secure Image Encryption Authentication Compression System

A two-phase content-based image authentication scheme is constructed based on a combination of hard and soft authentication implementing previous existing generic approximate message authentication codes which is a error-correcting codes with cryptographic message authentication codes and symmetric encryption techniques. The message authentication codes which used for hard authentication. The t...