GG 5320: Signals and Image Processing

Objective: Learn to filter and transform digital signals/images, apply processing methods to remote sensing and seismic data.

Class Diary

1. Overview (PDF or PS or HTML).

2. Image Enhancement and Filtering (PDF or PS or HTML).
   • Ex. 1 (In class exercise (ICE): 01/25/05) ,

3. Gradient Edge and Point Detection (PDF or PS or HTML),
   • Ex. 2 (Due 01/27/06), Ex. 4 (Due 01/27/06) , Ex. 5 (Due 01/27/06), Ex. 6 (Due 01/27/06) , Ex. 7 (Due 01/27/06), Ex. 8 (Due 01/27/06), Ex. 9a (Due 09/09/02), Ex. 9 (Due 09/09/02). Ex. 9c or 9d (Due 09/24/02).
   • Pretty picture tips by Dave Johnson ,

4. Median Filters (PDF or PS or HTML).
   • LAB: Median Filtering of Saudi Data. (Due Feb. 3 2006)
   • LAB: Median vs PEF Filtering of Coherent Noise
   • LAB: Median Filtering of Scratched Io Image (Due Feb. 3 2006).

5. 3D Edge Detection: (PDF or HTML or PS)
   • Edge detection exercise (Due Feb. 9, 2006): synthetic high quality slices, synthetic less-quality slices.
   • GOM Field Data Edge detection: GOM slices.
   • Papers: Yi Luo papers: Edge Preserved Smoothing, Spectral Detection, Edge Detection, and Similarity Detection.

6. Least Squares Inversion (PDF)
   • Lab: Multiple and Surface Wave Subtraction Lab (Due Feb. 17, 2006).
   • Lab: Least Squares Exercises (Due Feb. 17, 2006).

7. Z Transform (PDF)
   • Exercises 1,2 and 3 in Z-transform chapter (Due Feb. 24, 2006).
   • LAB: 60 Hz Notch Filter Design Lab
   • MOVIES: Damian's movie about 2-D MA filters+spectrums, Dave Johnson's movie about zero couplet filters,

8. Couplets and Bilinear Transform (PDF)

9. Deterministic Deconvolution (PDF)
   • LAB: Least Squares Wavelet Spiking Due: March 3, 2006 (Sam, Dan and Wiping)
   • LAB: Instrumentation Deconvolution Due: March 3, 2006 (Anastasia, Yanwei)
   • LAB: Spectral Deconvolution of Direct+Ghost Wavelet in Overthrust Seismic Data Due: March 3, 2006 (Shuqian)
   • Hmwk: Exercise 1 in Decon chapter. Due: March 10, 2006

10. 1-D Predictive Deconvolution (PDF)
    • LAB: Transforming Mixed Phase to Minimum Phase Wavelets, Roots, Double Inverse Method (Due March 31, 2006).
    • LAB: Simple Spiking PEF: Due: March 31, 2006.
    Choose two out of next four exercises. Due March 31, 2006.
    • LAB: Prediction Error Deconvolution of Friendswood Data:
    • LAB: Gapped Prediction Error Filtering of Mapleton Data:
    • LAB: Gapped Prediction Error Filtering of Saudi Data
    • LAB: Prediction Error Deconvolution of Water Works Data

11. Fourier Transform (PDF)
    • Exercise 1 in Fourier Transform (Due 04/07/06).
    • Lab:Elementary Fourier Transform LAB (ICE).
    • Lab:Fourier Transform CSG (Due 4/4/05)
    • Animations: Fourier Transforms, Widening Box Cars+Thinning Sincs, Spectral Leakage,
    • csg1, ploteast1.m, pltshade1.m.

12. Discrete Fourier Transform (PDF or HTML or PS)
    • Homework Exercises: Ex. 1 (Due 4/07/06), Ex. 2 (Due 4/07/06), Ex. 3 (Due 4/07/06), Ex. 4 , Ex. 5 , Ex. 6 (Due 4/07/06), Ex. 7 (Due 4/07/06), Ex. 8 (Due 4/07/06).
    • Animation: Wraparound effects by circular convolution movie.

13. 2D Discrete Fourier Transform (PDF or HTML or PS)
    • Lab: Martin Lake Filtering: (Due 04/14/06); Malaspina Lake Stress Orientation ; Continuation of Magnetic Data and good paper.

14. Introduction to Wavelet Theory
    • Yibo's introduction I (Powerpoint presentation). Exercises are listed in the last slide of the presentation and the matlab code are also included in the presentaion.
    • Yibo's introduction II (Powerpoint presentation).
    • Yibo's introduction III (Powerpoint presentation). Please download the matlab files: DWTtwoD.m, wdblift.m , wdwtmode.m , wilwt2.m , wliftwave.m , and wlwt2.m.

15. 2-D Predictive Deconvolution (PDF).
    • LAB: FX Prediction Filtering

16. Deconvolution of Vibroseis Data
    • LAB: Transforming Mixed Phase to Minimum Phase Wavelets, Roots, Double Inverse Method
    • LAB: Inverting a Mixed Phase Wavelet and SM24 Instrument Response Lab
    • LAB: Sensitivity of Matched Filters to Additive and Convolutional Noise
    • LAB: Sensitivity of Matched Filters to Harmonics
    • LAB: Reciprocity Lab

17. Filtering Harmonic Filtering Paper

18. Hilbert Transform (PDF)
    3D Radar Data Attribute Lab.
    2D CDP Data Attribute Lab.

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