Function attribute_camera_motion

Computes the camera motion attribute in the given seqeunce

Camera motion is defined as the average of translation vector lengths estimated by key-point-based RANSAC between consecutive frames.

Input:

• sequence (struct): An array of sequence structures.

Output:

• mean_val : mean value of the camera motion for the sequence

• val_val : variance of the camera motion for the sequence

• frames : the camera motion for each frame (from t-1 to t)