Sampled-grating and crossed-grating models of moire patterns from digital imaging

CONTENTS I . Introduction 2. Moire patterns from crossed gratings 3. Moire patterns from sampled gratings 3.1. Model of multiple stage reconstruction and sampling 3.2. Moire patterns 4. Experimental verification of sampled-grating moire 5. Crossed-gratings models of sampled gratings 5.1. Approximation with two Ronchi rulings 5.2. Approximation with two arbitrary gratings 5.3. Visual comparison 6. Conclusion 7. Acknowledgments 8. References