Images
------
file format:("epfl-gims08/tripod-seq/tripod_seq_%02d_%03d.jpg", seq_id, frame_id)
seq_id is the sequence number                     : 1, 2, ..., 20
frame_id is the frame number within the sequence s: 1, 2, ..., N^s_f

Sequence Information
--------------------
tripod-seq.txt: Contains information about the sequences that you can
use in your code to compute rotation angles and so on. It is in the following format:
---------------------------------------------------------------------------------------------
(# of sequences) (image width) (image height)
(# of frames in seq. 1) (# of frames in seq. 2) ...
(printf format for image files)
(printf format for bounding box files)
(# of frames in seq. 1 covering 360 degrees) (# of frames in seq. 2 covering 360 degrees) ...
(frame # of frontal pose in seq. 1) (frame # of frontal pose in seq. 2) ...
(rotation sense for the car in seq. 1) (rotation sense for the car in seq. 2) ..
---------------------------------------------------------------------------------------------
Note that the cars rotate more than 360 degrees, so you need to use
the frame numbers for 360 degrees when computing the rotation
angle. Frontal frame # can be used to place the origin.

Rotation sense is +1 for clock-wise rotation when viewed from top, -1
for ccw.

Timing
------
("times_%02d.txt", seq_id): contains the list of capture times for each frame

times.txt: contains the relative time of capture of each frame with
           respect to the sequence start in seconds. Every line
           corresponds to a single sequence.

Bounding Boxes
--------------
("bbox_%02d.txt", seq_id): contains the bounding box coordinates for
                           each frame in the sequence.
bbox format: top-left corner x, top-left corner y, width, height