A means and apparatus for covert capture of extremely high-resolution photorealistic images is presented. The apparatus embodies a new form of user-interface – instead of the traditional “point and click” metaphor which was thought to be the simplest photography had to offer, what is proposed is a “look” metaphor in which images are generated through the natural process of looking around, in a ...

Theory and experiment show that for a hologram object of two or more object points, the nonlinearity of the photographic process causes reconstructed images in addition to both the desired reconstructed image and the higher order reconstructed images. It is theoretically and experimentally shown that for a plane object parallel to the hologram plane, some of these undesired images may be focuse...

We demonstrate a means of creating a digital image by using a two axis tilt micromirror to scan a scene. For each different orientation we extract a single grayscale value from the mirror and combine them to form a single composite image. This allows one to choose the distribution of the samples, and so in principle a variable resolution image could be created. We demonstrate this ability to co...

A discussion of what a hologram is and how it is made is followed by a detailed procedure describing how to determine whether a proposed holographic system will be successful. Particular attention is given to the formation of the fringe pattern as it is the delineation of the fringes which determine the requirements and quality in holography. Several holographic systems are discussed giving the...

This paper summarizes the results of a visual psychophysical investigation of the relationship between two important printer parameters: addressability (expressed in terms of dots per inch or DPI) and grayscale capability (expressed in terms of the number of graylevels per pixel). The photographic image quality of print output increases with both the printer DPI and the number of graylevels per...

Since the late 1970's, dozens of researchers, scholars, skeptics and "professional debunkers" have presented their theories on how the image on the Shroud of Turin was formed. Some are based on serious science while others show a complete lack of understanding of the Shroud image or its properties. In this paper, I will review the "proto-photography" theory proposed by Prof. Nicholas Allen of S...

Integral imaging is a technique capable of displaying images with continuous parallax in full natural colour. This paper presents a modified multi-baseline method for extracting depth information from unidirectional integral images. The method involves first extracting sub-images from the integral image. A sub-image is constructed by extracting one pixel from each micro-lens rather than a macro...

CHROMA is a fully functional prototype content-based image retrieval system designed as part of the support mechanism for a digital photographic library. The paper outlines CHROMA's colour based indexing scheme and the access system which combines a Thumbnail Viewer, index structure Navigation Tool, a Sketch Tool and Query-by-Image-Example tool. Some recent results of evaluations of the effecti...

Billions of new images are generated daily. However, the management and exchange of the associated metadata remains cumbersome. Therefore, the Joint Photographic Experts Group (JPEG) has recently promoted a new set of technologies enabling the interoperability between image repositories and/or their clients to an international standard. JPSearch is a suite of specifications that supports the en...