EVS EPSIO Version 1.63 - May 2011 User's Manual - Manual (Page 31)

Epsio Version 1.63 – User’s Manual
EVS Broadcast Equipment – May 2011
Issue 1.63.C
25
The camera angles defined in Epsio are now associated to snapshots of the
real playfield and saved in a configuration file. You can load them back via
the File > Load menu. See also the section 2.1.3 ‘Saving and Managing the
Configuration’, on page 11.
7. Use varied test snapshots to make sure the calibration is acceptable as a
whole. If necessary, perform some adjustments by repositioning only the
anchor points initially matched in step 3.
For more information on the calibration tests, see the section 2.3.6 ‘Testing
your Calibration’, on page 34.
8. On a shot that includes the 16-meter line, and part of the central circle, add
virtual points for offside shots where playfield lines would not be visible.
For more information on additional virtual points, see the section 2.3.7
‘Adding Virtual Points’, on page 37.
2.3.4 S
NAPSHOTS FOR
C
ALIBRATION
16-M
ETER
C
AMERA
C
ALIBRATION
Introduction
For each 16-meter camera used for the offside feature, you need to take two
snapshots corresponding to each camera angle:
• Goal area
• Central circle
Important
Keep the following in mind when you select the frame you will use:
• A playfield is naturally curved, whereas the Epsio virtual field is made
up of straight lines.
• A very wide shot is very likely to distort the image, which will intensify
the curved effect of the field.
Goal Area Calibration
The snapshot for the goal area of the left or right 16-meter camera should show:
• the whole left or right penalty area (respectively) with the 16-meter and 6-meter
lines
• the goal line along the goal area,
• part of each touchline on both sides of the playfield.