Transform coding techniques and their application in JPEG scheme.

by Chun-tat See.Thesis (M.Phil.)--Chinese University of Hong Kong, 1991.Includes bibliographical references.ACKNOWLEDGEMENTS --- p.iABSTRACT --- p.iiNOTATIONS --- p.ivTABLE OF CONTENTS --- p.viChapter 1. --- INTRODUCTION --- p.1-1Chapter 1.1 --- Introduction --- p.1-1Chapter 1.2 --- A Basic Transform Coding System --- p.1-2Chapter 1.3 --- Thesis Organization --- p.1-5Chapter 2. --- DYADIC MATRICES AND THEIR APPLICATION --- p.2-1Chapter 2.1 --- Introduction --- p.2-1Chapter 2.2 --- Theory of Dyadic Matrix --- p.2-2Chapter 2.2.1 --- Basic Definitions --- p.2-3Chapter 2.2.2 --- Maximum Size of Dyadic Matrix --- p.2-8Chapter 2.3 --- Application of Dyadic Matrix in Generating Orthogonal Transforms --- p.2-13Chapter 2.3.1 --- Transform Performance Criteria --- p.2-14Chapter 2.3.2 --- "[T1] = [P]Diag([DM2(4)],[A(4)])[Q]" --- p.2-19Chapter 2.3.3 --- "[T2] = [P]Diag([DM2(4)],[DM2(4)])[Q]" --- p.2-21Chapter 2.4 --- Discussion and Conclusion --- p.2-26Chapter 3. --- LOW SEQUENCY COEFFICIENT TRUNCATION (LSCT) CODING SCHEME --- p.3-1Chapter 3.1 --- Introduction --- p.3-1Chapter 3.2 --- DC Coefficient Estimation Schemes --- p.3-2Chapter 3.2.1 --- Element Estimation --- p.3-2Chapter 3.2.2 --- Row Estimation --- p.3-4Chapter 3.2.3 --- Plane Estimation --- p.3-7Chapter 3.3 --- LSCT Coding Scheme 1 and Results --- p.3-11Chapter 3.4 --- LSCT Coding Scheme 2 and Results --- p.3-17Chapter 3.5 --- Discussions and Conclusions --- p.3-21Chapter 4. --- VARIABLE BLOCK SIZE (VBS) CODING SCHEME --- p.4-1Chapter 4.1 --- Introduction --- p.4-1Chapter 4.2 --- Chen's VBS Coding Scheme and Its Limitation --- p.4-3Chapter 4.3 --- VBS Coding Scheme With Block Size Determined Using Edge Discriminator --- p.4-6Chapter 4.4 --- Simulation Results --- p.4-8Chapter 4.5 --- Discussions and Conclusions --- p.4-12Chapter 5. --- ENHANCEMENT OF JPEG INTERNATIONAL STANDARD --- p.5-1Chapter 5.1 --- Introduction --- p.5-1Chapter 5.2 --- The Basic JPEG International Standard --- p.5-2Chapter 5.2.1 --- Level Shift and Discrete Cosine Transform --- p.5-4Chapter 5.2.2 --- Uniform Quantization --- p.5-5Chapter 5.2.3 --- Coefficient Coding --- p.5-7Chapter 5.3 --- Efficient DC Coefficients Encoding --- p.5-8Chapter 5.3.1 --- The Minimum Edge Difference (MED) Predictor --- p.5-8Chapter 5.3.2 --- Simulation Results --- p.5-9Chapter 5.3.3 --- Pixel Domain Predictors --- p.5-13Chapter 5.3.4 --- Discussion and Conclusion --- p.5-15Chapter 5.4 --- JPEG Scheme Using Variable Block Size Technique --- p.5-15Chapter 5.4.1 --- Scheme 1 --- p.5-16Chapter 5.4.2 --- Scheme 2 --- p.5-25Chapter 5.4.3 --- Scheme 3 --- p.5-27Chapter 5.4.4 --- Scheme 4 --- p.5-29Chapter 5.4.5 --- Scheme 5 --- p.5-32Chapter 5.4.6 --- Discussions and Conclusions --- p.5-32Chapter 5.5 --- Conclusions --- p.5-33Chapter 6. --- CONCLUSIONS --- p.6-1Chapter 6.1 --- Summary of Research Work --- p.6-1Chapter 6.2 --- Contributions of Work --- p.6-2Chapter 6.3 --- Suggestions for Further Research --- p.6-3Chapter 7. --- REFERENCES --- p.7-1RESULT