HW3
Xinye Chen
09/11/2016
1. Gaussian pyramid
Laplacian pyramid
2. After I perform background with different thresholds, I found that when threshold is very low,
almost everything in the background is recognized as object, which is because that the even a
little change in color can be larger than thresholds, so everything left in picture. When I
gradually increase threshold, the things left in the picture become less. When the threshold is
around 50, only object I need is left in image. But as I continue to increase threshold, eventually
there the image become black and nothing left on image. This is because that all the thing in the
original image has been filtered.
T=10
T=30
T=50
3. The same as question, the shape became clear as threshold increased, but after some threshold,
there is nothing shown on screen. Compared to question, background subtraction 2 have the
same effect with less threshold.
T=5
T=10
T=15.95
