Experiment 7
Composing multiple templates
In experiment 7, we split the bicycle template into two sub-templates, and allow the sub-templates
to shift their locations relative to each other. We then use this structure to detect and sketch
the tandem bike. We call such a structure a multi-basis, which is a composition of multiple active
bases. We also estimate the optimal split point.
(1)
data, codes, and readme for multibasis
Experiment 7.1. Animation of sketches by splitting the bicycle template at different locations.
Experiment 7.1. MAX3 scores for different splitting points.
eps
Experiment 7.1. Left: Input image of 330*496. Right: Superposed sketch. The bounding box of the front
wheel is 112*126. The bounding box of the back wheel is 86*76. The total number of elements is 60.
eps
eps
Experiment 7.1. The two SUM2 maps for the two sub-templates
at
the optimal splitting point.
eps1
eps2
Experiment 7.1. The two MAX2 maps for the two sub-templates
at the optimal splitting point.
eps1
eps2
Experiment 7.1. SUM3 map at the optimal splitting point.
eps
Experiment 7.1. Superposed sketches obtained at all the
splitting points.
eps1
2
3
4
5
6
7
8
9
10
(2) another example
Experiment 7.2. The observed image. Because of the view point, the horse is shorter than the
template learned from the side view.
eps
Experiment 7.2. Superposed with sketch where the horse template is split horizontally into two
sub-templates. These two sub-templates are allowed to move horizontally up to 10 pixels in each
direction.
eps
Experiment 7.2. Superposed with sketch using the original horse template. In other words, the
two sub-templates are not allowed to move relative to each other. The template does not fit
the rear part of the horse.
eps
Back to active basis homepage