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Part of the book series: The Springer International Series in Engineering and Computer Science (SECS, volume 265)
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Table of contents (5 chapters)
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Front Matter
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Back Matter
About this book
In both the synthesis and analysis of the system, a point of view from within the system is adopted rather than that of an omniscient designer drawing a blueprint. This perspective projects the design and the designer into a living landscape. The motivation for a machine-centered perspective is explained in the first chapter. The second chapter describes the evolution of the silicon retina. The retina accurately encodes visual information over orders of magnitude of ambient illumination, using mismatched components that are calibrated as part of the encoding process. The visual abstraction created by the retina is suitable for transmission through a limited bandwidth channel. The third chapter introduces a general method for interchip communication, the address-event representation, which is used for transmission of retinal data. The address-event representation takes advantage of the speed of CMOS relative to biological neurons to preserve the information of biological action potentials using digital circuitry in place of axons. The fourth chapter describes a collective circuit that computes stereodisparity. In this circuit, the processing that corrects for imperfections in the hardware compensates for inherent ambiguity in the environment. The fifth chapter demonstrates a primitive working stereovision system.
An Analog VLSI System for Stereoscopic Vision contributes to both computer engineering and neuroscience at a concrete level. Through the construction of a working analog of biological vision subsystems, new circuits for building brain-style analog computers have been developed. Specific neuropysiological and psychophysical results in terms of underlying electronic mechanisms are explained. These examples demonstrate the utility of using biological principles for building brain-style computers and the significance of building brain-style computers for understanding the nervous system.
Authors and Affiliations
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M.R.C. Anatomical Neuropharmacology Unit, Oxford, England
Misha Mahowald
Bibliographic Information
Book Title: An Analog VLSI System for Stereoscopic Vision
Authors: Misha Mahowald
Series Title: The Springer International Series in Engineering and Computer Science
DOI: https://doi.org/10.1007/978-1-4615-2724-4
Publisher: Springer New York, NY
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eBook Packages: Springer Book Archive
Copyright Information: Springer Science+Business Media New York 1994
Hardcover ISBN: 978-0-7923-9444-0Published: 31 March 1994
Softcover ISBN: 978-1-4613-6174-9Published: 08 October 2012
eBook ISBN: 978-1-4615-2724-4Published: 06 December 2012
Series ISSN: 0893-3405
Edition Number: 1
Number of Pages: XV, 215
Topics: Circuits and Systems, Complex Systems, Electrical Engineering, Neurosciences, Computer Imaging, Vision, Pattern Recognition and Graphics, Statistical Physics and Dynamical Systems