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Optical Realization of a Foucault-Hilbert Transform -- Materials and Devices for Coherent Optical Computing -- Information Processing in Optical Systems of Holographic Memory Devices -- Generation of Asymmetric Interference Fringes in Reflected Light -- Noise in Coherent Optical Information Processing -- Informational Capacity of Coherent Optical Processing Systems -- Extensions of Synthetic Aperture Radar Information Processing -- Controlled Transparencies for Optical Processing -- Kinoform Optical Elements -- Acoustooptic Signal Processing -- Some Peculiarities of Physical Realization of Operation Optical Memory -- Non-Coherent Optical System for Processing of Images and Signals -- Optical Logic and Optically Accessed Digital Storage -- Nonlinear Optical Processing -- Optical Foundations of Digital Communication and Information Processing -- The Information Content of Optical Diffraction Patterns -- Holographic Memories -- Biographies of Authors -- Author Index.

<p>The area of image processing has made rapid strides because of enormous applications it has in different fields. This growth can also be attributed to the increasing use of fuzzy logic in all tasks of image processing as the fuzzy logic facilitates the representation of inherent uncertainty in the image information which can be local or global. For problems like enhancement global information is of interest whereas the local information is needed for the problems of edge detection, segmentation, and recognition. However we need both for the noise removal. The images are of varied types: Medical images (CT scans, MR, X-rays, ECG, etc.), satellite images, natural scenes, videos, games, multimedia, biometrics, industrial, astronomical so on and so forth. The approaches to tackle different images have to be different. For example skin texture can't represented by a colour model.</p><p><strong>Defence Science Journal, 2011, 61(5), pp.405-407</strong><strong><strong>, DOI:http://dx.doi.org/10.14429/dsj.61.1192</strong></strong></p>

This paper reviews our recent studies on the effects of aging on human information processing. In these studies the event-related potentials of the brain (ERPs) recorded in visual discrimination tasks were compared in younger and older groups of subjects in four experiments. We obtained a slight age-related delay of the NA component of the ERP. This component is a correlate of elementary pattern-identification processes. Obvious latency differences appeared on the anterior positivity, selection negativity, and N2b components in tasks where the target stimuli were defined by two stimulus characteristics. These components are correlates of attentional processes, i.e., the results support the view emphasizing age-related decline of the attentional processes. In the elderly the late positivity was less sensitive to stimulus probability, and in the older groups this component was more evenly distributed over the scalp. These results are considered as an indication that the structure of stimulus sequences was less efficiently represented in the older subjects.