In recent years, correlation-filter (CF)-based face recognition algorithms have attracted
increasing interest in the field of pattern recognition and have achieved impressive results in …

Progress in Fourier optical processing techniques is reviewed. Particular emphasis is placed
on real-time pattern recognition, which recently has received increased interest as the result …

A method for object recognition that is invariant under translation, rotation and scaling is
addressed. The first step of the method (pre-processing) takes into account the invariant …

A new algorithm is presented for hiding a secret image in the least significant bits of a cover
image. The images used may be color or grayscale images. The number of bits used for …

This book grew out of the author's need for a concise, comprehensive text that would give
his students a deep understanding of optics and optical processes without overwhelming …

A super-resolving imaging apparatus employs diffractive optical elements placed on the
imaging lens. This element, and the use of a modified Scheimpflug arrangement allow the …

A method and system for enhancing the resolution of an image sensing device, including the
steps of attaching a mask to a panel of detectors in an image sensing device, generating …

Optical correlation schemes based on a matched filter containing a single logarithmic
harmonic of an object are described. This correlator can provide shift and projection (tilt) …

A common goal of many watermarking techniques is to produce a mark that remains
detectable after the geometric transformations of Rotation, Scale and Translation; also …

The Mellin radial harmonic filter and the logarithmic harmonic filter are useful for performing
optical scale-and projection-invariant pattern recognition, respectively. To our knowledge …