000			01362pam a2200325 a 4500
999			_c163124 _d163124
020			_a0195121597 (alk. paper)
040			_cCUS
082	0	0	_a658.4038 _bLUC/I
100	1		_aLucas, Henry C.
245	1	0	_aInformation technology and the productivity paradox: assessing the value of investing in IT/ _cHenry C. Lucas
260			_aNew York : _bOxford University Press, _c1999.
300			_aix, 225 p. _bill. ; _c24 cm.
504			_aIncludes bibliographical references (p. 217-221) and index.
505			_a1 Introduction 1.1 Biological information processing 3 1.2 Information in images ^ 1.3 Vision as information processing 13 2 Imaging 2.1 Intensities 2.2 Imaging systems 2.3 Perspective projection 31 2.4 Eye movements II Contrast, Form, and Color 47 3 Representation and processing of images 49 3.1 Examples 3.2 Sampling 3.3 Image processing 3.4 Resolution 4 Edge detection *^3 4.1 The significance of edges 73 4.2 Edge detection in one dimension . . . ' 78 4.3 Edge detection in two dimensions 88 5 Color and color constancy 94 5.1 The color of isolated points of light 95 5.2 Color in images viii CONTENTS III Depth Perception 119 6 Stereoscopic vision 121 6.1 Differences between images due to parallax 121 6.2 Stereoscopic geometry (binocular perspective) 124 6.3 Stereo algorithms 133 6.4 Neural networks 141 6.5 Psychophysics 142 7 Shape from shading 140 7.1 Psychophysics I47 7.2 Problem statement I49 7.3 One-dimensional "images" 7.4 Shape from shading in two dimensions I57 8 Texture and surface orientation 162 8.1 Texture and texture gradients 8.2 Regular patterns: Vanishing points 8.3 Stochastic patterns 1; Density gradient 100 8.4 Statistical patterns 2: Shape gradient IV Motion 177' 9 Motion detection l^-g 9.1 Problem statement 9.2 The correlation detector 9.3 The gradient detector 9.4 Orientation in the spatio-temporal image 9.5 Second-order motions 10 Optical flow 200 10.1 Information in the optical flow 200 10.2 Motion vector fields 201 10.3 Flow fields for observer motion 206 10.4 Recovering information from optical flow 218 11 Visual navigation 224 11.1 Path integration 224 11.2 Navigation using landmarks 228 11.3 Constructed environments 230 11.4 Neurophysiology of spatial memory - 241 CONTENTS ix V Appendix 243 Glossary of mathematical terms 245 Mathematical symbols and units 263
650		0	_aInformation technology _xFinance.
650		0	_aCapital investments.
650		0	_aRate of return.
942			_cWB16