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3D Shape : Its Unique Place in Visual Perception - Zygmunt Pizlo

3D Shape

Its Unique Place in Visual Perception

Paperback

Published: 30th September 2010
For Ages: 18+ years old
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Choice Outstanding Academic Title, 2008. The uniqueness of shape as a perceptual property lies in the fact that it is both complex and structured. Shapes are perceived veridically--perceived as they really are in the physical world, regardless of the orientation from which they are viewed. The constancy of the shape percept is the "sine qua non" of shape perception; you are not actually studying shape if constancy cannot be achieved with the stimulus you are using. Shape is the only perceptual attribute of an object that allows unambiguous identification. In this first book devoted exclusively to the perception of shape by humans and machines, Zygmunt Pizlo describes how we perceive shapes and how to design machines that can see shapes as we do. He reviews the long history of the subject, allowing the reader to understand why it has taken so long to understand shape perception, and offers a new theory of shape. Until recently, shape was treated in combination with such other perceptual properties as depth, motion, speed, and color. This resulted in apparently contradictory findings, which made a coherent theoretical treatment of shape impossible. Pizlo argues that once shape is understood to be unique among visual attributes and the perceptual mechanisms underlying shape are seen to be different from other perceptual mechanisms, the research on shape becomes coherent and experimental findings no longer seem to contradict each other. A single theory of shape perception is thus possible, and Pizlo offers a theoretical treatment that explains how a three-dimensional shape percept is produced from a two-dimensional retinal image, assuming only that the image has been organized into two-dimensional shapes. Pizlo focuses on discussion of the main concepts, telling the story of shape without interruption. Appendixes provide the basic mathematical and computational information necessary for a technical understanding of the argument. References point the way to more in-depth reading in geometry and computational vision.

This book offers e-Humanities many interesting points of contact and a very promising approach.

-Literary and Linguistic Computing
This book offers e-Humanities many interesting points of contact and a very promising approach.

-Literary and Linguistic Computing * Reviews *

Prefacep. ix
Early Theories of Shape and the First Experiments on Shape Constancyp. 1
Shape Is Specialp. 1
Explaining Visual Constancies with a ôTaking into Accountö Principlep. 8
Helmholtz' Influence When the Modern Era Beganp. 14
Thouless' Misleading Experimentsp. 16
Stavrianos' (1945) Doctoral Dissertation Was the First Experiment to Show That Subjects Need Not Take Slant into Account to Achieve Shape Constancyp. 22
Contributions of Gestalt Psychology to Shape Perception (1912-1945)p. 27
The Cognitive Revolution Leads to Neo-Gestaltism and Neo-Empiricismp. 39
Hochberg's Attempts to Define Simplicity Quantitativelyp. 40
Attneave's Experiment on 3D Shapep. 46
Perkins' Contribution: Emphasis Shifts from Simplicity to Veridicalityp. 49
Wallach's Kinetic Depth Effect Reflects a Shift from Nativism to Empiricismp. 56
Empiricism Revisitedp. 60
Machine Visionp. 73
Marr's Computational Visionp. 79
Reconstruction of 3D Shape from Shading, Texture, Binocular Disparity, Motion, and Multiple Viewsp. 91
Recognition of Shape Based on Invariantsp. 95
Poggio's Elaboration of Marr's Approach: The Role of Constraints in Visual Perceptionp. 107
The Role of Figure-Ground Organizationp. 111
Formalisms Enter into the Study of Shape Perceptionp. 115
Marr's Influencep. 116
If Depth Does Not Contribute to the 3D Shape Percept, What Does? (Poggio's Influence)p. 125
Uniqueness of Shape Is Finally Recognizedp. 126
A New Paradigm for Studying Shape Perceptionp. 145
Main Steps in Reconstructing 3D Shape from its 2D Retinal Representationp. 145
How the New Simplicity Principle Is Appliedp. 156
Summary of the New Theoryp. 166
Millstones and Milestones Encountered on the Road to Understanding Shapep. 170
2D Perspective and Projective Transformationp. 185
Perkins' Lawsp. 193
Projective Geometry in Computational Modelsp. 197
Shape Constraints in Reconstruction of Polyhedrap. 229
Notesp. 235
Referencesp. 245
Indexp. 267
Table of Contents provided by Publisher. All Rights Reserved.

ISBN: 9780262515139
ISBN-10: 026251513X
Series: The MIT Press
Audience: Professional
For Ages: 18+ years old
Format: Paperback
Language: English
Number Of Pages: 296
Published: 30th September 2010
Publisher: MIT Press Ltd
Country of Publication: US
Dimensions (cm): 22.23 x 14.61  x 1.27
Weight (kg): 0.36