Preface | p. xv |
Author | p. xvii |
Introduction | p. 1 |
Imaging Goes Digital | p. 1 |
Briefly about the Book Structure | p. 7 |
References | p. 8 |
Mathematical Preliminaries | p. 9 |
Mathematical Models in Imaging | p. 9 |
Primary Definitions | p. 9 |
Linear Signal Space, Basis Functions, and Signal Representation as Expansion over a Set of Basis Functions | p. 12 |
Signal Transformations | p. 17 |
Imaging Systems and Integral Transforms | p. 20 |
Direct Imaging and Convolution Integral | p. 20 |
Multiresolution Imaging: Wavelet Transforms | p. 22 |
Imaging in Transform Domain and Diffraction Integrals | p. 23 |
Properties of the Integral Fourier Transform | p. 29 |
Invertibility | p. 29 |
Separability | p. 31 |
Symmetry Properties | p. 33 |
Transforms in Sliding Window (Windowed Transforms) and Signal Sub-Band Decomposition | p. 34 |
Imaging from Projections and Radon Transform | p. 37 |
Statistical Models of Signals and Transformations | p. 40 |
Principles of Statistical Treatment of Signals and Signal Transformations and Basic Definitions | p. 40 |
Models of Signal Random Interferences | p. 45 |
Additive Signal-Independent Noise Model | p. 45 |
Multiplicative Noise Model | p. 47 |
Poisson Model | p. 47 |
Impulse Noise Model | p. 48 |
Speckle Noise Model | p. 48 |
Quantifying Signal-Processing Quality | p. 52 |
Basics of Optimal Statistical Parameter Estimation | p. 53 |
Appendix | p. 57 |
Derivation of Equation 2.32 | p. 57 |
Derivation of Equation 2.65 | p. 57 |
Derivations of Equations 2.84 through 2.87 | p. 58 |
Reference | p. 58 |
Image Digitization | p. 59 |
Principles of Signal Digitization | p. 59 |
Signal Discretization | p. 60 |
Signal Discretization as Expansion over a Set of Basis Functions | p. 60 |
Typical Basis Functions and Classification | p. 61 |
Shift (Convolutional) Basis Functions | p. 61 |
Scale (Multiplicative) Basis Functions | p. 66 |
Wavelets | p. 70 |
Optimality of Bases: Karhunen-Loeve and Related Transform | p. 73 |
Image Sampling | p. 78 |
The Sampling Theorem and Signal Sampling | p. 78 |
1D Sampling Theorem | p. 80 |
Sampling Two-Dimensional and Multidimensional Signals | p. 86 |
Sampling Artifacts: Quantitative Analysis | p. 91 |
Sampling Artifacts: Qualitative Analysis | p. 94 |
Alternative Methods of Discretization in Imaging Devices | p. 96 |
Signal Scalar Quantization | p. 100 |
Optimal Quantization: Principles | p. 100 |
Design of Optimal Quantizers | p. 102 |
Quantization in Digital Holography | p. 111 |
Basics of Image Data Compression | p. 113 |
What Is Image Data Compression and Why Do We Need It? | p. 113 |
Signal Rate Distortion Function, Entropy, and Statistical Encoding | p. 115 |
Outline of Image Compression Methods | p. 117 |
Appendix | p. 120 |
Derivation of Equation 3.31 | p. 120 |
Derivation of Equation 3.44 | p. 121 |
Derivation of Equation 3.45 | p. 122 |
Derivation of Equation 3.78 | p. 122 |
Derivation of Equation 3.98 | p. 123 |
Derivation of Equation 3.105 | p. 124 |
Derivation of Equation 3.136 | p. 127 |
Basics of Statistical Coding | p. 128 |
Exercises | p. 130 |
References | p. 130 |
Discrete Signal Transformations | p. 133 |
Basic Principles of Discrete Representation of Signal Transformations | p. 133 |
Discrete Representation of the Convolution Integral | p. 137 |
Digital Convolution | p. 137 |
Treatment of Signal Borders in Digital Convolution | p. 141 |
Discrete Representation of Fourier Integral Transform | p. 142 |
Discrete Fourier Transforms | p. 142 |
2D Discrete Fourier Transforms | p. 147 |
Properties of Discrete Fourier Transforms | p. 148 |
Invertibility and sincd-Function | p. 149 |
Energy Preservation Property | p. 150 |
Cyclicity | p. 151 |
Symmetry Properties | p. 153 |
SDFT Spectra of Sinusoidal Signals | p. 154 |
Mutual Correspondence between Signal Frequencies and Indices of Its SDFTs Spectral Coefficients | p. 155 |
DFT Spectra of Sparse Signals and Spectrum Zero Padding | p. 156 |
Discrete Cosine and Sine Transforms | p. 161 |
Signal Convolution in the DCT Domain | p. 166 |
DFTs and Discrete Frequency Response of Digital Filter | p. 169 |
Discrete Representation of Fresnel Integral Transform | p. 171 |
Canonical Discrete Fresnel Transform and Its Versions | p. 171 |
Invertibility of Discrete Fresnel Transforms and frincd-Function | p. 175 |
Convolutional Discrete Fresnel and Angular Spectrum Propagation Transforms | p. 178 |
Two-Dimensional Discrete Fresnel Transforms | p. 182 |
Discrete Representation of Kirchhoff Integral | p. 184 |
Hadamard, Walsh, and Wavelet Transforms | p. 184 |
Binary Transforms | p. 185 |
Hadamard and Walsh Transforms | p. 185 |
Haar Transform | p. 186 |
Discrete Wavelet Transforms and Multiresolution Analysis | p. 187 |
Discrete Sliding Window Transforms and "Time-Frequency" Signal Representation | p. 192 |
Appendix | p. 197 |
Derivation of Equation 4.24 | p. 197 |
Derivation of Equation 4.30 | p. 197 |
Reasonings Regarding Equation 4.31 | p. 198 |
Derivation of Equations 4.37 and 4.38 | p. 198 |
Principle of Fast Fourier Transform Algorithm | p. 199 |
Representation of Scaled DFT as Convolution | p. 200 |
Derivation of Equation 4.53 | p. 201 |
Derivation of Equations 4.58 and 4.60 | p. 202 |
Derivation of Equation 4.63 | p. 203 |
Derivation of Equation 4.65 | p. 204 |
Derivation of Equation 4.68 | p. 205 |
Derivation of Equation 4.70 | p. 207 |
Derivation of Equations 4.72 and 4.74 | p. 208 |
Derivation of Equation 4.75 | p. 209 |
Derivation of Equation 4.76 | p. 209 |
Derivation of Equation 4.85 | p. 211 |
Rotated and Scaled DFTs as Digital Convolution | p. 212 |
Derivation of Equation 4.93 | p. 213 |
Derivation of Equation 4.98 | p. 214 |
Derivation of Equation 4.104 | p. 214 |
Derivation of Equation 4.118 | p. 215 |
Derivation of Equation 4.124 | p. 215 |
Derivation of Equation 4.149 | p. 216 |
Derivation of Equation 4.183 | p. 217 |
Exercises | p. 217 |
Reference | p. 217 |
Digital Image Formation and Computational Imaging | p. 219 |
Image Recovery from Sparse or Nonuniformly Sampled Data | p. 219 |
Formulation of the Task | p. 219 |
Discrete Sampling Theorem | p. 220 |
Algorithms for Signal Recovery from Sparse Sampled Data | p. 223 |
Analysis of Transforms | p. 224 |
Discrete Fourier Transform | p. 224 |
Discrete Cosine Transform | p. 226 |
Wavelets and Other Bases | p. 231 |
Selection of Transform for Image Band-Limited Approximation | p. 235 |
Application Examples | p. 236 |
Image Superresolution from Multiple Differently Sampled Video Frames | p. 236 |
Image Reconstruction from Sparse Projections in Computed Tomography | p. 238 |
Discrete Sampling Theorem and "Compressive Sensing" | p. 238 |
Digital Image Formation by Means of Numerical Reconstruction of Holograms | p. 241 |
Introduction | p. 241 |
Principles of Hologram Electronic Recording | p. 241 |
Numerical Algorithms for Hologram Reconstruction | p. 246 |
Hologram Pre- and Postprocessing | p. 249 |
Point Spread Functions of Numerical Reconstruction of Holograms General Formulation | p. 250 |
Point Spread Function of Numerical Reconstruction of Holograms Recorded in Far Diffraction Zone (Fourier Holograms) | p. 254 |
Point Spread Function of Numerical Reconstruction of Holograms Recorded in Near Diffraction Zone (Fresnel Holograms) | p. 258 |
Fourier Reconstruction Algorithm | p. 259 |
Convolution Reconstruction Algorithm | p. 261 |
Computer-Generated Display Holography | p. 264 |
3D Imaging and Computer-Generated Holography | p. 264 |
Recording Computer-Generated Holograms on Optical Media | p. 266 |
Optical Reconstruction of Computer-Generated Holograms | p. 269 |
Computational Imaging Using Optics-Less Lambertian Sensors | p. 272 |
Optics-Less Passive Sensors: Motivation | p. 272 |
Imaging as a Parameter Estimation Task | p. 273 |
Optics-Less Passive Imaging Sensors: Possible Designs, Expected Performance, Advantages, and Disadvantages | p. 278 |
Appendix | p. 284 |
Derivation of Equation 5.47 | p. 284 |
Derivation of Equation 5.63 | p. 285 |
Derivation of Equation 5.69 | p. 286 |
Derivation of Equation 5.81 | p. 286 |
Derivation of Equation 5.88 | p. 289 |
Derivation of Equation 5.89 | p. 290 |
Exercises | p. 290 |
References | p. 290 |
Image Resampling and Building Continuous Image Models | p. 293 |
Perfect Resampling Filter | p. 294 |
Fast Algorithms for Discrete Sine Interpolation and Their Applications | p. 298 |
Signal Subsampling (Zooming-In) by Means of DFT or DCT Spectra Zero Padding | p. 298 |
DFT- and DCT-Based Signal Fractional Shift Algorithms and Their Basic Applications | p. 301 |
Fast Image Rotation Using the Fractional Shift Algorithms | p. 306 |
Image Zooming and Rotation Using "Scaled" and Rotated DFTs | p. 308 |
Discrete Sine Interpolation versus Other Interpolation Methods: Performance Comparison | p. 310 |
Numerical Differentiation and Integration | p. 313 |
Perfect Digital Differentiation and Integration | p. 313 |
Traditional Numerical Differentiation and Integration Algorithms versus DFT/DCT-Based Ones: Performance Comparison | p. 317 |
Local ("Elastic") Image Resampling: Sliding Window Discrete Sine Interpolation Algorithms | p. 322 |
Image Data Resampling for Image Reconstruction from Projections | p. 325 |
Discrete Radon Transform: An Algorithmic Definition and Filtered Back Projection Method for Image Reconstruction | p. 325 |
Direct Fourier Method of Image Reconstruction | p. 327 |
Image Reconstruction from Fan-Beam Projections | p. 328 |
Appendix | p. 330 |
Derivation of Equations 6.6 and 6.7 | p. 330 |
PSF of Signal Zooming by Means of Zero Padding of Its DCT Spectrum | p. 334 |
Derivation of Equation 6.18 | p. 338 |
Derivation of Equation 6.28 | p. 339 |
Derivation of Equation 6.29 | p. 340 |
Exercises | p. 342 |
References | p. 342 |
Image Parameter Estimation: Case Study-Localization of Objects in Images | p. 343 |
Localization of Target Objects in the Presence of Additive Gaussian Noise | p. 343 |
Optimal Localization Device for Target Localization in Noncorrelated Gaussian Noise | p. 343 |
Performance of ML-Optimal Estimators: Normal and Anomalous Localization Errors | p. 345 |
Target Object Localization in the Presence of Nonwhite (Correlated) Additive Gaussian Noise | p. 351 |
Localization Accuracy for the SNR-Optimal Filter | p. 354 |
Optimal Localization in Color and Multicomponent Images | p. 355 |
Object Localization in the Presence of Multiple Nonoverlapping Nontarget Objects | p. 357 |
Target Localization in Cluttered Images, | p. 359 |
Formulation of the Approach | p. 359 |
SCR-Optimal Adaptive Correlator | p. 360 |
Local Adaptive SCR-Optimal Correlators | p. 366 |
Object Localization in Blurred Images | p. 370 |
Object Localization and Edge Detection: Selection of Reference Objects for Target Tracking | p. 372 |
Appendix | p. 378 |
Distribution Density and Variances of Normal Localization Errors | p. 378 |
Evaluation of the Probability of Anomalous Localization Errors | p. 386 |
Derivation of Equations 7.49, 7.50, and 7.51 | p. 389 |
Exercises | p. 394 |
References | p. 394 |
Image Perfecting | p. 395 |
Image Perfecting as a Processing Task | p. 395 |
Possible Approaches to Restoration of Images Distorted by Blur and Contaminated by Noise | p. 397 |
MMSE-Optimal Linear Filters for Image Restoration | p. 401 |
Transform Domain MSE-Optimal Scalar Filters | p. 401 |
Empirical Wiener Filters for Image Denoising | p. 403 |
Empirical Wiener Filters for Image Deblurring | p. 411 |
Sliding Window Transform Domain Adaptive Image Restoration | p. 420 |
Local Adaptive Filtering | p. 420 |
Sliding Window DCT Transform Domain Filtering | p. 422 |
Hybrid DCT/Wavelet Filtering | p. 427 |
Multicomponent Image Restoration and Data Fusion | p. 429 |
Filtering Impulse Noise | p. 435 |
Correcting Image Grayscale Nonlinear Distortions | p. 440 |
Nonlinear Filters for Image Perfecting | p. 443 |
Nonlinear Filter Classification Principles | p. 443 |
Filter Classification Tables and Particular Examples | p. 451 |
Nonlinear Filters for Multicomponent Images | p. 458 |
Display Options for Image Enhancement | p. 460 |
Appendix | p. 463 |
Derivation of Equation 8.16 | p. 463 |
Empirical Estimation of Variance of Additive Signal-Independent Broad Band Noise in Images | p. 464 |
Derivation of Equation 8.45 | p. 466 |
Derivation of Equation 8.51 | p. 468 |
Verification of Equation 8.66 | p. 473 |
Exercises | p. 475 |
References | p. 475 |
Index | p. 477 |
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