User's Manual

Epsio Version 1.63 – User’s Manual

EVS Broadcast Equipment – May 2011

Issue 1.63.C

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 SNAPSHOTS FOR CALIBRATION

16-METER CAMERA CALIBRATION

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.