CASIA action database is a collection of sequences of human activities captured by video cameras outdoors from different angle of view. There are 1446 sequences in all containing eight types of actions of single person (walk, run, bend, jump, crouch, faint, wander and punching a car) performed each by 24 subjects and seven types of two person interactions (rob, fight, follow, follow and gather, meet and part, meet and gather, overtake) performed by every 2 subjects.
Single person action:
Walk: One subject walking along the road.
Run: One subject running along the road.
Bend: One subject bending his/her body while walking.
Jump: One subject jumping along the road.
Crouch: One subject crouching once a time while walking along the road.
Faint: One subject falling down to the ground while walking along the road.
Wander: One subject wandering around.
Punching a car: One subject punching a car.
Rob: One subject robing another one.
Fight: Two subjects fighting with each other.
Follow: One subject Following another one till the end.
Follow and gather: One subject Following another one and then walking together with the other to the end.
Meet and part: Two subjects meeting each other and then departing.
Meet and gather: Two subjects meeting each other and then walking together till the end.
Overtake: One subject overtaking another one.
Sample Image (original size 320*240):
All video sequences were taken simultaneously with static three non-calibrated cameras from different angle of view (horizontal view, angle view and top down view) with the frame rate of 25fps and were compressed with the huffyuv code in avi format. The original spatial resolution of the sequences was resized to 320*240. The duration of the sequences lasts from 5 seconds to 30 seconds due to different kind of actions.
Sample sequences (resized):
Top down view:
The avi files are named with items, like [view angle]_[person label]_[action]_[action count].avi，For example, angleview_p01_walk_a1.avi, representing angle of view, persons’ ID, action category and action No. respectively.
The database archive structure: