Figure 3

Foreground-mask sampling. The first row shows input frames while the second row shows corresponding foreground images. After obtaining the intersection result, two filters are applied to remove certain static regions which are not the luggage items. One filter is the human classifier introduced in Section 3, while the other removes unreasonably large regions. Image on the right represents the intersection of the n foreground images sampled over T seconds, and it was obtained after removing nonluggage regions.