In your lab write-up, write an introduction and a conclusion, which
discuss the following general points:
- Motivation. Why are you doing this lab? To solve what image
- Method. How did you solve the problem?
- Results. What were your results? What did you learn? Include the MSE values. You do not need to hand in any printouts of output images.
Along with other relevant points,
answer the following questions, and include question
numbers in your report (to identify which part of your report
answers which question).
There isn't much theory in this lab, so emphasize what you observe
from the video sequences.
Q1. Compare the reinterpolated images in the synthesized
sequence to the
corresponding frames of the real football sequence in part B of the lab.
Why is there a difference? For which subsampling/interpolation scheme is the
difference large for each image? Why?
Q2. Describe how you would implement the pyramid decomposition
in the spatial domain (e.g., on a 512x512 image). (Fancier versions of
this idea are
in many video coding systems. Once pyramid decompoisition is carried
out in the time domain, one can do it in the spatial domain as well.)
Q3. How many multiplications and additions are required to do the compression
procedure of the pyramid coding method? Count each subtraction as one
addition (they have the same complexity).
Normalize your numbers by the total number of pixels in the
video sequence, to get multiplications/pixel and additions/pixel.
Q4. Answer Q3 for the decompression procedure of the pyramid
Q5. Under what conditions is intensity interpolation good for
recovering lost frames? When is it bad? Explain your answers.
Lab 6 p.4 - Report
Last Edit 26-Feb-07