Coordinates - quercus SmartLoop TS Programming Manual

QuercusVL Programming Manual

4.4.3. Coordinates

For historical reasons, all the coordinates described in the protocol (as detector or traffic light
position) will be defined in a 5 megapixel image (from 0 to 2559 and from 0 to 1919).
4.5. Common structures
Data structures used in messages of later sections.
4.5.1. Timestamp
Defines a specific moment in time.
Seconds: date and time of the timestamp, showing the number of seconds
●
elapsed since 00:00 hours on the first of January of 1970. It is the same format
that is returned at the call to function time_t time ( time_t *timer ) from ANSI C
standard.
Useconds: microseconds of the timestamp.
●
4.5.2. Region
Informs about the location of the four vertex that make up a detector or loop.
X1: position of vertex 1 in the image (horizontal axe).
●
Y1: position of vertex 1 in the image (vertical axe).
●
X2: position of vertex 2 in the image (horizontal axe).
●
Y2: position of vertex 2 in the image (vertical axe).
●
X3: position of vertex 3 in the image (horizontal axe).
●
Y3: position of vertex 3 in the image (vertical axe).
●
X4: position of vertex 4 in the image (horizontal axe).
●
Y4: position of vertex 4 in the image (vertical axe).
●
Quercus Technologies
132
Seconds
2 2 2
X1 Y1 X2
4 4
USeconds
2 2 2
Y2 X3 Y3
2 2
X4 Y4