This collection of MATLAB tools is intended to help visualise the `visual words' generated for video data during the popular bag of visual words pipeline.
Each circle corresponds to mean position of a space-time feature.
Each colour corresponds to a different `visual word'.
Size of circle corresponds to the scale at which feature was extracted.
Histogram in top left corner shows the frequency of each word on that particular frame (un-normalised).
The black number (top left corner) is the frame number.
Matlab toolkit:
[ Ссылка ]
