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Authors' biographies | p. xi |
Preface | p. xiii |
Acknowledgments | p. xv |
Introduction to moments | p. 1 |
Motivation | p. 1 |
What are invariants? | p. 3 |
Categories of invariant | p. 4 |
What are moments? | p. 6 |
Geometric and complex moments | p. 6 |
Orthogonal moments | p. 7 |
Outline of the book | p. 8 |
References | p. 9 |
Moment invariants to translation, rotation and scaling | p. 13 |
Introduction | p. 13 |
Invariants to translation | p. 13 |
Invariants to uniform scaling | p. 14 |
Traditional invariants to rotation | p. 15 |
Rotation invariants from complex moments | p. 17 |
Construction of rotation invariants | p. 17 |
Construction of the basis | p. 19 |
Basis of invariants of the second and third orders | p. 22 |
Relationship to the Hu invariants | p. 22 |
Pseudoinvariants | p. 26 |
Combined invariants to TRS and contrast changes | p. 27 |
Rotation invariants for recognition of symmetric objects | p. 29 |
Logo recognition | p. 32 |
Recognition of simple shapes | p. 33 |
Experiment with a baby toy | p. 34 |
Rotation invariants via image normalization | p. 38 |
Invariants to nonuniform scaling | p. 42 |
TRS invariants in 3D | p. 43 |
Conclusion | p. 45 |
References | p. 45 |
Affine moment invariants | p. 49 |
Introduction | p. 49 |
Projective imaging of a 3D world | p. 49 |
Projective moment invariants | p. 50 |
Affine transformation | p. 52 |
AMJs | p. 53 |
AMIs derived from the Fundamental theorem | p. 54 |
AMIs generated by graphs | p. 55 |
The basic concept | p. 55 |
Representing the invariants by graphs | p. 57 |
Independence of the AMIs | p. 58 |
The AMIs and tensors | p. 64 |
Robustness of the AMIs | p. 66 |
AMIs via image normalization | p. 67 |
Decomposition of the affine transform | p. 70 |
Violation of stability | p. 74 |
Relation between the normalized moments and the AMIs | p. 74 |
Affine invariants via half normalization | p. 76 |
Affine invariants from complex moments | p. 76 |
Derivation of the AMIs from the Cayley-Aronhold equation | p. 79 |
Manual solution | p. 79 |
Automatic solution | p. 81 |
Numerical experiments | p. 84 |
Digit recognition | p. 84 |
Recognition of symmetric patterns | p. 87 |
The children's mosaic | p. 87 |
Affine invariants of color images | p. 92 |
Generalization to three dimensions | p. 95 |
Method of geometric primitives | p. 96 |
Normalized moments in 3D | p. 98 |
Half normalization in 3D | p. 102 |
Direct solution of the Cayley-Aronhold equation | p. 104 |
Conclusion | p. 104 |
Appendix | p. 105 |
References | p. 109 |
Implicit invariants to elastic transformations | p. 113 |
Introduction | p. 113 |
General moments under a polynomial transform | p. 116 |
Explicit and implicit invariants | p. 117 |
Implicit invariants as a minimization task | p. 119 |
Numerical experiments | p. 120 |
Invariance and robustness test | p. 121 |
ALOI classification experiment | p. 122 |
Character recognition on a bottle | p. 122 |
Conclusion | p. 125 |
References | p. 126 |
Invariants to convolution | p. 129 |
Introduction | p. 129 |
Blur invariants for centrosymmetric PSFs | p. 133 |
Template matching experiment | p. 138 |
Invariants to linear motion blur | p. 139 |
Extension to n dimensions | p. 143 |
Possible applications and limitations | p. 144 |
Blur invariants for W-fold symmetric PSFs | p. 145 |
Blur invariants for circularly symmetric PSFs | p. 146 |
Blur invariants for Gaussian PSFs | p. 147 |
Combined invariants | p. 148 |
Combined invariants to convolution and rotation | p. 149 |
Combined invariants to convolution and affine transform | p. 150 |
Conclusion | p. 151 |
Appendix | p. 151 |
References | p. 162 |
Orthogonal moments | p. 165 |
Introduction | p. 165 |
Moments orthogonal on a rectangle | p. 166 |
Hypergeometric functions | p. 167 |
Legendre moments | p. 168 |
Chebyshev moments | p. 171 |
Other moments orthogonal on a rectangle | p. 173 |
OG moments of a discrete variable | p. 178 |
Moments orthogonal on a disk | p. 186 |
Zernike and Pseudo-Zernike moments | p. 186 |
Orthogonal Fourier-Mellin moments | p. 192 |
Other moments orthogonal on a disk | p. 194 |
Object recognition by ZMs | p. 196 |
Image reconstruction from moments | p. 197 |
Reconstruction by the direct calculation | p. 199 |
Reconstruction in the Fourier domain | p. 200 |
Reconstruction from OG moments | p. 201 |
Reconstruction from noisy data | p. 204 |
Numerical experiments with image reconstruction from OG moments | p. 204 |
Three-dimensional OG moments | p. 206 |
Conclusion | p. 209 |
References | p. 209 |
Algorithms for moment computation | p. 213 |
Introduction | p. 213 |
Moments in a discrete domain | p. 213 |
Geometric moments of binary images | p. 215 |
Decomposition methods for binary images | p. 216 |
Boundary-based methods for binary images | p. 219 |
Other methods for binary images | p. 221 |
Geometric moments of graylevel images | p. 222 |
Intensity slicing | p. 222 |
Approximation methods | p. 223 |
Efficient methods for calculating OG moments | p. 225 |
Methods using recurrent relations | p. 225 |
Decomposition methods | p. 228 |
Boundary-based methods | p. 230 |
Generalization to n dimensions | p. 230 |
Conclusion | p. 231 |
References | p. 232 |
Applications | p. 235 |
Introduction | p. 235 |
Object representation and recognition | p. 235 |
Image registration | p. 240 |
Registration of satellite images | p. 241 |
Image registration for image fusion | p. 246 |
Robot navigation | p. 250 |
Indoor robot navigation based on circular landmarks | p. 251 |
Recognition of landmarks using fish-eye lens camera | p. 253 |
Image retrieval | p. 257 |
Watermarking | p. 259 |
Watermarking based on the geometric moments | p. 260 |
Medical imaging | p. 263 |
Landmark recognition in the scoliosis study | p. 264 |
Forensic applications | p. 267 |
Detection of near-duplicated image regions | p. 267 |
Miscellaneous applications | p. 271 |
Noise-resistant optical flow estimation | p. 272 |
Focus measure | p. 272 |
Edge detection | p. 275 |
Gas-liquid flow categorization | p. 276 |
3D objects visualization | p. 276 |
Conclusion | p. 276 |
References | p. 277 |
Conclusion | p. 289 |
Index | p. 291 |
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