Lucas, Henry C. <br/><br/>
Information technology and the productivity paradox: assessing the value of investing in IT/ 
Henry C. Lucas 
 - New York :  Oxford University Press,  1999. 
 - ix, 225 p.   ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 217-221) and index. 
<br/><br/>1 Introduction<br/>1.1 Biological information processing 3<br/>1.2 Information in images ^<br/>1.3 Vision as information processing 13<br/>2 Imaging<br/>2.1 Intensities<br/>2.2 Imaging systems<br/>2.3 Perspective projection 31<br/>2.4 Eye movements<br/>II Contrast, Form, and Color 47<br/>3 Representation and processing of images 49<br/>3.1 Examples<br/>3.2 Sampling<br/>3.3 Image processing<br/>3.4 Resolution<br/>4 Edge detection *^3<br/>4.1 The significance of edges 73<br/>4.2 Edge detection in one dimension . . . ' 78<br/>4.3 Edge detection in two dimensions 88<br/>5 Color and color constancy 94<br/>5.1 The color of isolated points of light 95<br/>5.2 Color in images<br/>viii CONTENTS<br/>III Depth Perception 119<br/>6 Stereoscopic vision 121<br/>6.1 Differences between images due to parallax 121<br/>6.2 Stereoscopic geometry (binocular perspective) 124<br/>6.3 Stereo algorithms 133<br/>6.4 Neural networks 141<br/>6.5 Psychophysics 142<br/>7 Shape from shading 140<br/>7.1 Psychophysics I47<br/>7.2 Problem statement I49<br/>7.3 One-dimensional "images"<br/>7.4 Shape from shading in two dimensions I57<br/>8 Texture and surface orientation 162<br/>8.1 Texture and texture gradients<br/>8.2 Regular patterns: Vanishing points<br/>8.3 Stochastic patterns 1; Density gradient 100<br/>8.4 Statistical patterns 2: Shape gradient<br/>IV Motion 177'<br/>9 Motion detection l^-g<br/>9.1 Problem statement<br/>9.2 The correlation detector<br/>9.3 The gradient detector<br/>9.4 Orientation in the spatio-temporal image<br/>9.5 Second-order motions<br/>10 Optical flow 200<br/>10.1 Information in the optical flow 200<br/>10.2 Motion vector fields 201<br/>10.3 Flow fields for observer motion 206<br/>10.4 Recovering information from optical flow 218<br/>11 Visual navigation 224<br/>11.1 Path integration 224<br/>11.2 Navigation using landmarks 228<br/>11.3 Constructed environments 230<br/>11.4 Neurophysiology of spatial memory - 241<br/>CONTENTS ix<br/>V Appendix 243<br/>Glossary of mathematical terms 245<br/>Mathematical symbols and units 263<br/> 
<br/><br/><label>ISBN: </label>0195121597 (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information technology--Finance.<br/>Capital investments.<br/>Rate of return.
<br/><br/><label>Dewey Class. No.: </label>658.4038   / LUC/I