v3dr code

Code accompanying the UBC V3dR dataset.

We provide code for reading frame-level CMU annotations in Matlab.

These are the 8 classes and their corresponding IDs used in the annotation file:

1. get_up (5)
2. kick (10)
3. pick_up (12)
4. punch (9)
5. sit_down (4)
6. throw_overhead (13)
7. turn (6)
8. walk (7)

Accessing annotations (Matlab)

The main function to read the annotation is:

labels_cell = get_annotation_labels(<CSV annotation file path>, ...);

See the script RUN_GET_LABELS for an example.

The labels_cell data format:

labels_cell is a 2000 x 2 cell array where each row corresponds to one file:

• The first column has the file name.
• And, the second column is another cell array with length equal to the number of frames, where each cell block holds IDs of the labelled actions for that frame.

###Note:

• We assume that the mocap data has already been subsampled to 24 fps (originally at 120 fps).
• We can have multiple labels per frame e.g., a subject can walk and throw at the same time.

Acknowledgement

• We use the function csv2cell by Arthur Hebert available at http://www.mathworks.com/matlabcentral/fileexchange/20836-csv2cell