Multidimensional Processing of Video Signals / Edition 1

by Giovanni L. Sicuranza, Sanjit K. Mitra

Overview

A color time-varying image can be described as a three-dimensional vector (representing the colors in an appropriate color space) defined on a three-dimensional spatiotemporal space. In conventional analog television a one-dimensional signal suitable for transmission over a communication channel is obtained by sampling the scene in the vertical and temporal directions and by frequency-multiplexing the luminance and chrominance information. In digital processing and transmission systems, sampling is applied in the horizontal direction, too, on a signal which has been already scanned in the vertical and temporal directions or directly in three dimensions when using some solid-state sensor. As a consequence, in recent years it has been considered quite natural to assess the potential advantages arising from an entire multidimensional approach to the processing of video signals. As a simple but significant example, a composite color video signal, such as the conventional PAL or NTSC signal, possesses a three-dimensional spectrum which, by using suitable three-dimensional filters, permits horizontal sampling at a rate which is less than that required for correctly sampling the equivalent one-dimensional signal. More recently it has been widely recognized that the improvement of the picture quality in current and advanced television systems requires well-chosen signal processing algorithms which are multidimensional in nature within the demanding constraints of a real-time implementation.

Product Details

ISBN-13:	9780792392286
Publisher:	Springer US
Publication date:	05/31/1992
Series:	The Springer International Series in Engineering and Computer Science , #171
Edition description:	Reprinted from MULTIDIMENSIONAL SYSTEMS AND SIGNAL PROCESSING, 3:2/3, 1992
Pages:	189
Product dimensions:	6.10(w) x 9.25(h) x 0.24(d)

Table of Contents

Editorial.- Motion Adaptive Scan Rate Up-Conversion.- Spectral Estimation of Video Signals.- Multiresolution Coding Techniques for Digital Television: A Review.- Multiresponse Imaging: Information and Fidelity.- Motion-Compensated Filtering of Time Varying Images.- On the Hybrid Coders with Motion Compensation.- Contour Image Sequence Compression through Motion Analysis and Hybrid Coding Method.

Editorial Reviews

Improving the picture quality in television systems requires signal processing algorithms that are multidimensional, but are required to work within the constraints of a real-time implementation. Seven papers explore some recent developments in applications ranging from low bit-rate video coding and multimedia information systems to improved quality and high-definition television. Annotation c. Book News, Inc., Portland, OR (booknews.com)

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