Download or read book Computational Models of Contrast and Orientation Processing in Primary Visual Cortex written by and published by . This book was released on 2011 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Models of Primary Visual Cortex and the Structure of Natural Images written by Hauke Bartsch and published by . This book was released on 2004 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Image Analysis written by Josef Bigün and published by Springer Science & Business Media. This book was released on 2003-06-25 with total page 1196 pages. Available in PDF, EPUB and Kindle. Book excerpt: The excellently received call for papers of the 13th Scandinavian Conference on Image Analysis, June 29-July 2 (SCIA 2003) resulted in the selected articles of this proceedings. Additionally the volume also contains invited contributions from - Ivar Austvoll, Stavanger University College (NO), - Lars B? a? ath, Halmstad University (SE), - Ewert Bengtsson, Uppsala University (SE), - Rasmus Larsen, Technical University of Denmark (DK), - Jussi Parkkinen, University of Joensuu (FI), - Pietro Perona, California Institute of Technology (US) which brings the total number of articles to 152. The theme of the papers are dominated by the categories - Feature extraction - Depth and surface - Medical image processing - Shape analysis - Segmentation and spatial grouping - Coding and representation - Motion analysis - Texture analysis - Color analysis - Indexing and categorization which also represent the topical groupings of this book. The particularly strong response to the feature extraction, depth and surface, and medical image processing themes makes us believe that these areas are c- rently expansive, partly because of the rich set of problems which remain to be addressed.
Download or read book Computational Models of Visual Processing written by Michael S. Landy and published by MIT Press. This book was released on 1991 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: The more than twenty contributions in this book, all new and previously unpublished, provide an up-to-date survey of contemporary research on computational modeling of the visual system. The approaches represented range from neurophysiology to psychophysics, and from retinal function to the analysis of visual cues to motion, color, texture, and depth. The contributions are linked thematically by a consistent consideration of the links between empirical data and computational models in the study of visual function. An introductory chapter by Edward Adelson and James Bergen gives a new and elegant formalization of the elements of early vision. Subsequent sections treat receptors and sampling, models of neural function, detection and discrimination, color and shading, motion and texture, and 3D shape. Each section is introduced by a brief topical review and summary. ContributorsEdward H. Adelson, Albert J. Ahumada, Jr., James R. Bergen, David G. Birch, David H. Brainard, Heinrich H. Bülthoff, Charles Chubb, Nancy J. Coletta, Michael D'Zmura, John P. Frisby, Norma Graham, Norberto M. Grzywacz, P. William Haake, Michael J. Hawken, David J. Heeger, Donald C. Hood, Elizabeth B. Johnston, Daniel Kersten, Michael S. Landy, Peter Lennie, J. Stephen Mansfield, J. Anthony Movshon, Jacob Nachmias, Andrew J. Parker, Denis G. Pelli, Stephen B. Pollard, R. Clay Reid, Robert Shapley, Carlo L. M. Tiana, Brian A. Wandell, Andrew B. Watson, David R. Williams, Hugh R. Wilson, Yuede. Yang, Alan L. Yuille
Download or read book Brain Theory written by Adrianus Aertsen and published by Elsevier. This book was released on 1996 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hardbound. The present collection of papers focuses on the subject of vision. The papers bring together new insights and facts from various branches of experimental and theoretical neuroscience. The experimental facts presented in the volume stem from disparate fields, such as neuroanatomy, electrophysiology, optical imaging and psychophysics. The theoretical models in part are unsophisticated, yet still inspiring, while others skilfully apply advanced mathematical reasoning to results of experimental measurements. The book is the fifth in a series of volumes intending to define a theory of the brain by bringing together formal reasoning and experimental facts. The reader is thus being introduced to a new kind of brain science, where facts and theory are beginning to blend together.
Download or read book Membrane Potential and Input Conductance Mechanisms Underlying Orientation Tuning and Length Tuning in Cat Primary Visual Cortex written by Jeffrey S. Anderson and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Models of the origin of orientation tuning in visual cortex propose fundamentally different computational roles for the cerebral cortex. Feedforward models propose that orientation tuning arises from the specificity of thalamocortical inputs to simple cells. Feedback models propose that orientation tuning is an emergent property of intracortical circuitry. Feedforward models have proven consistent with a number of experimental results, but a few perceived inconsistencies have motivated the development of more complex feedback models. The present report both addresses some of these perceived failures of feedforward models, as well as elaborates on additional synaptic mechanisms for orientation tuning and length tuning in visual cortex. First, experiments have shown large numbers of inhibitory cortical connections, to which feedforward models have ascribed little function beyond simple gain control. Various other models suggest that these inhibitory connections are crucial to sensory processing by sharpening the computations performed by thalamocortical inputs. In this report, data are presented from measurements of synaptic conductances showing that inhibitory inputs to cortical simple cells do not sharpen orientation tuning. Second, one of the most troubling criticisms of feedforward models has been their inability to explain the invariance of orientation tuning with stimulus contrast without elaborate modifications. Data are shown that suggest such contrast invariance of orientation tuning is rather a natural consequence of high levels of synaptic noise in cortical cells. Third, it is proposed that at higher stages in visual cortical processing, such as in most complex cells, that synchronized, two-state, membrane potential fluctuations may encode sensory information at the network level. Finally, membrane potential and conductance measurements are presented that suggest a role for intracortical connections in establishing length tuning in visual cortex. A two-part model is suggested by the data: direct, long-range inhibition is observed in some cells to give rise to end-stopping; in other cells, end-stopping is achieved primarily by decreased input from other cells that are themselves end-stopped.
Download or read book Models of Neural Networks IV written by J. Leo van Hemmen and published by Springer Science & Business Media. This book was released on 2012-11-09 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume, with chapters by leading researchers in the field, is devoted to early vision and attention, that is, to the first stages of visual information processing. This state-of-the-art look at biological neural networks spans the many subfields, such as computational and experimental neuroscience; anatomy and physiology; visual information processing and scene segmentation; perception at illusory contours; control of visual attention; and paradigms for computing with spiking neurons.
Download or read book Mechanisms Symbols and Models Underlying Cognition written by José Mira and published by Springer. This book was released on 2005-06-09 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume set LNCS 3561 and LNCS 3562 constitute the refereed proceedings of the First International Work-Conference on the Interplay between Natural and Artificial Computation, IWINAC 2005, held in Las Palmas, Canary Islands, Spain in June 2005. The 118 revised papers presented are thematically divided into two volumes; the first includes all the contributions mainly related with the methodological, conceptual, formal, and experimental developments in the fields of Neurophysiology and cognitive science. The second volume collects the papers related with bioinspired programming strategies and all the contributions related with the computational solutions to engineering problems in different application domains.
Download or read book Exploration of Cortical Function written by M. Stetter and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploration of Cortical Function summarizes recent research efforts aiming at the revelation of cortical population coding and signal processing strategies. Topics include optical detection techniques of population activity in the sub-millimeter range, advanced methods for the statistical analysis of these data, and biologically inspired neuronal modeling techniques for population activities in the frameworks of optimal coding, statistical learning theory, and mean-field recurrent networks. Exploration of Cortical Function is unique in that it covers one complete branch of population-based brain research ranging from techniques for data acquisition over data analysis up to modeling techniques for the quantification of functional principles. The volume covers an area which is of great current interest to researchers working on cerebral cortex. The combination of models and image analysis techniques to examine the activity of large cohorts of neurons is especially intriguing and prone to considerable error and debate.
Download or read book Computational Models of Feedforward and Feedback Pathways in the Visual Cortex written by Thomas Joseph Sullivan and published by . This book was released on 2006 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Psychophysical and Computational Study of Contrast Coding in Primary Visual Cortex written by Mazviita Chirimuuta and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensory Cue Integration written by Julia Trommershauser and published by Computational Neuroscience. This book was released on 2011 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is concerned with sensory cue integration both within and between sensory modalities, and focuses on the emerging way of thinking about cue combination in terms of uncertainty. These probabilistic approaches derive from the realization that our sensors are noisy and moreover are often affected by ambiguity. For example, mechanoreceptor outputs are variable and they cannot distinguish if a perceived force is caused by the weight of an object or by force we are producing ourselves. The probabilistic approaches elaborated in this book aim at formalizing the uncertainty of cues. They describe cue combination as the nervous system's attempt to minimize uncertainty in its estimates and to choose successful actions. Some computational approaches described in the chapters of this book are concerned with the application of such statistical ideas to real-world cue-combination problems. Others ask how uncertainty may be represented in the nervous system and used for cue combination. Importantly, across behavioral, electrophysiological and theoretical approaches, Bayesian statistics is emerging as a common language in which cue-combination problems can be expressed
Download or read book Visual Stress written by Arnold J. Wilkins and published by OUP Oxford. This book was released on 1995-02-23 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first general and unified theory of visual discomfort. The theory is based on the observation that people find certain visual stimuli uncomfortable, and that these same stimule induce seizures in patients with photosensitive epilepsy. The theory is applied to a variety of everyday problems such as eye strain from reading, lighting, television and VDU terminals, and more generally from design. A variety of techniques for preventing and treating visual discomfort are described.
Download or read book The New Visual Neurosciences written by John S. Werner and published by MIT Press. This book was released on 2013-10-25 with total page 1693 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of contemporary research in the vision sciences, reflecting the rapid advances of recent years. Visual science is the model system for neuroscience, its findings relevant to all other areas. This essential reference to contemporary visual neuroscience covers the extraordinary range of the field today, from molecules and cell assemblies to systems and therapies. It provides a state-of-the art companion to the earlier book The Visual Neurosciences (MIT Press, 2003). This volume covers the dramatic advances made in the last decade, offering new topics, new authors, and new chapters. The New Visual Neurosciences assembles groundbreaking research, written by international authorities. Many of the 112 chapters treat seminal topics not included in the earlier book. These new topics include retinal feature detection; cortical connectomics; new approaches to mid-level vision and spatiotemporal perception; the latest understanding of how multimodal integration contributes to visual perception; new theoretical work on the role of neural oscillations in information processing; and new molecular and genetic techniques for understanding visual system development. An entirely new section covers invertebrate vision, reflecting the importance of this research in understanding fundamental principles of visual processing. Another new section treats translational visual neuroscience, covering recent progress in novel treatment modalities for optic nerve disorders, macular degeneration, and retinal cell replacement. The New Visual Neurosciences is an indispensable reference for students, teachers, researchers, clinicians, and anyone interested in contemporary neuroscience. Associate Editors Marie Burns, Joy Geng, Mark Goldman, James Handa, Andrew Ishida, George R. Mangun, Kimberley McAllister, Bruno Olshausen, Gregg Recanzone, Mandyam Srinivasan, W.Martin Usrey, Michael Webster, David Whitney Sections Retinal Mechanisms and Processes Organization of Visual Pathways Subcortical Processing Processing in Primary Visual Cortex Brightness and Color Pattern, Surface, and Shape Objects and Scenes Time, Motion, and Depth Eye Movements Cortical Mechanisms of Attention, Cognition, and Multimodal Integration Invertebrate Vision Theoretical Perspectives Molecular and Developmental Processes Translational Visual Neuroscience
Download or read book Higher Order Processing in the Visual System written by Gregory R. Bock and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foremost neurophysiologists and psychophysicists provide pertinent information on the nature of representation at the earliest stages as this will constrain the disposition of all subsequent processing. This processing is discussed in several different types of visual perception.
Download or read book Neural Computation written by and published by . This book was released on 2003 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Developmental Stereo written by Mojtaba Solgi and published by ProQuest. This book was released on 2009 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
