1. An Overview --; Depth Matching --; Dipmeter Computation --; Dipmeter Postprocessing --; Detection of Dipmeter Patterns --; Log Blocking --; Computation of Primary and Shear Wave Velocity Logs --; Problems Not Yet Solved --; References --; For Further Reading --; 2. The Minimization Principle --; Initial Formulation --; Modified Formulation --; Discussion of the Principle --; Conclusion --; 3. Computing the Shear Wave Velocity Log: Curve Detection in Noisy Pictures --; The Sonic Tool and the Full Waveform Log --; Detection of Shear Wave Arrival --; Selection of Correct Log Values --; An Image-Processing Interpretation --; Log Despiking --; Conclusion --; References --; 4. Dipmeter Correlation: A Pattern-Matching Problem --; The Dipmeter Tool --; Manual Processing of Dipmeter Logs --; Computer Processing of Dipmeter Logs --; Activity --; Segmentation of Dipmeter Curves --; Correlation Using the Minimization Principle --; Correlation Using Syntactic Pattern Recognition --; Fixed-Interval Correlation --; Conclusion --; References --; 5. Depth Matching: A Pattern-Matching Problem --; Depth Errors --; Manual Depth Correction of Logs --; An Interactive Algorithm --; An Algorithm Based on the Minimization Principle --; A Physical Model --; Depth Matching of Logs with Varying Deflections --; and Other Options --; Examples --; Conclusion --; References --; 6. Dipmeter Postprocessing: An Image-Sharpening Problem --; Testing Dipmeter Logs for Plausibility --; A Mathematical Model --; Applications of the Model --; Taking the Dip Angle into Account --; Conclusion --; References --; 7. Coloring a Computed Dipmeter Log: Feature Identification --; Definition of the Problem --; An Algorithm Based on the Minimization Principle --; An Algorithm Based on Statistical Pattern Recognition --; Conclusion --; References --; 8. Blocking: Curve Shape Analysis --; Definition and Applications of Blocking --; Zonation --; Determination of Representative Log Values --; Examples --; Extension of Zoning to Other Logs --; Conclusion --; References --; 9. Conclusion: Directions for Future Research --; Appendix A: An Algorithm to Implement the Minimization Principle --; Appendix B: An Algorithm to Implement the Modified Minimization Principle --; Appendix C: Forms of Activity Function.