There are two cameras. The first camera is located on the ceiling to track the coordinates of the table and the moving object. The second camera is located in the foreground in order to gain a close-up view of the shadows created. Two light sources are used at two different positions. One position is used to cast a shadow onto the table, and the other position is used to cast a shadow onto the wall. The box is located on the table, adding an extra degree of geometrical complication. The cylinder is suspended in the air and operated by strings so that we can cast moving shadows. Our testbed consists of three sets of data:
- physical videos with a moving object, which is used for tracking the coordinates of the moving object
- background videos without the moving object, which is used for reproducing the virtual objects and the virtual shadows
- Tracking data, which represents the coordinate systems of the table and moving cylinder.
We provide different simulation parameters:
- Two light sources: one is a halogen linear light with 300W and the other is a spherical light source with 150W.
- Two different light positions: one is at the center of the table to cast shadows only onto the table and the other is position is intended for casting shadows onto the wall.
- With or without an extra geometrical object: we use a box to represent an extra geometrical object.
- An object moves along a single axis in one direction or two different directions.