Image Processing Reference

In-Depth Information

2. Use
ewald
in MATLAB to generate Ewald circles for a target consist-

ing of one circle (Choice 0) and two circles (Choice 1). Use any valid

permittivity and a minimum of 12 sources and 120 receivers. For each

target save a 2-D output image of the combined Ewald circles. How are

these images similar? How are these images different? Please discuss

your observations and speculate on reasons for both the similarities

and differences.

3. Repeat the procedure in Exercise 1 for one square (Choice 2) and two

squares (Choice 3). Compare the resulting images obtained here with

the images obtained in Exercise 1. Discuss similarities and differ-

ences and reasons for them.

4. Use
ewald
in MATLAB to generate Ewald circles for two triangles

(Choice 5) using 4 sources and 360 receivers. Do this twice, once for a

target permittivity of 1.1 and again for a target permittivity of 1.9. Be

sure and show the individual Ewald circles for each source. For each

scenario save the individual Ewald circle for Source #2. Compare the

images for each Ewald circle. Describe the differences and discuss

why you think they are so different.

born exercises

1. Use
born
in MATLAB to generate Born approximation reconstructions

for various targets. Do this several times varying the target, the per-

mittivity, the number of sources, and the number of receivers. Discuss

your observations for the various scenarios and give some speculation

for reasons for the variations observed.

2. Use
born
in MATLAB to generate Born approximation reconstruc-

tions for a circle (Choice 0) using 36 sources and 360 receivers. Also,

set the image maximum dimension to 0.25 for each case. Do this three

times for a target permittivity of 1.1, 1.5, and 1.9. For each scenario

save the Born images generated. Compare the images for each Born

reconstruction and discuss the differences. Please speculate as to the

reason for these differences.

3. Use
born
in MATLAB to generate Born approximation reconstruc-

tions for any target consisting of two objects (Choices 1, 3, or 5) using

any valid permittivity and a minimum of 6 sources and 120 receivers.

Be sure and show the individual Born reconstructions for each source.

Please discuss your observations for the individual Born reconstruc-

tions for each source and speculate on their relationship to the Born

of the combined sources.

4. Use
born
in MATLAB to generate Born approximation reconstruc-

tions for two circles (Choice 1) using a minimum of 12 sources and 120

receivers. Do this twice, once for a target permittivity of 1.1 and again

for 1.9. For each scenario save the individual Born reconstruction for

Source #12. Compare the images for each reconstruction. Describe the

differences and discuss why you think they are so different.

Cepstrum exercises

1. Use
Cepstrum
in MATLAB to generate Born and Cepstrum recon-

structions for various targets. Do this several times varying the

target, the permittivity, the number of sources, and the number of

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