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VIDEO CHECK Sys tem

Mon treux 31 May 2013

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Agenda - 31 May 2013

Why th e Video Check?

Human Error Theory (James Reason )

The system

- Bal l I/O

- Servic e Fault

Lesso n learned

Next steps

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- Techonolog y to sup po rt referees

- Reduce errors

- Mit igate conf l icts

- Garantee for teams

- Overcome limitations of traditional TV

Why the video Check

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Why the video Check

Speed (km /h) (mt/s) Travelled distance between frame (mt)

125,00 34,72 1,39

120,00 33,33 1,33

110,00 30,56 1,22

100,00 27,78 1,11

90,00 25,00 1,00

80,00 22,22 0,89

70,00 19,44 0,78

60,00 16,67 0,67

50,00 13,89 0,56

40,00 11,11 0,44

30,00 8,33 0,33

20,00 5,56 0,22

Traditional TV (25fps) - Speed and distance between frame

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To err is human

(Cicero , I Centu ry B .C.)

to understand reasons why humans err is science

(Ho llnagel 1993)

Why the video Check

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Human Error Theory

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Human Error Theory

Rule Based

Errors result from the inability to recognize or

understand the situations or thecircumstances encountered.

Knowledge Based

Errors result from shortcomings in knowledge

or limitations in his/her ability to apply existing

knowledge

Skill Based (slip and lapses)

Errors of execution where a subject deviates

from the normal course of action and

performs an automatic behaviour that is

associated with another cue because is

attention deviated on another course.

Sometimes error is an action chosen but notin accordance with intention.

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Evaluati

onE

xecution

Skill-based behaviorSemi and fully-automatic

elapsing actions

Rule-based behaviorActivities based on

externally given rules

Activities based on

existent knowledge

SlipMistakes in attention

and perception

LapsesMistakes in recall

action sequences

Rule-based

mistakes

Knowledge-based

mistakes

Human Error Theory

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SLIPS and LAPSES

Generally they occur in very familiar and recurrent tasks which we

can carry out without much conscious attention

E.G.

performing an action too soon in a procedure, or leaving it too late

omitting a step or series of steps from a task

Human Error Theory

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Video-camera position

1 8

7

6

54

2

3

Video Check system

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Video Check sys tem

Maximum deformat ion ?

Circumference ?

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Ball In / Out 1 2 3 4 5 6

Service fault (touch of end line) 1

Video Check sys tem

Match Call Positive Negative

Final Four Italian Cup Men 13 4 9

Semifinals and Final Ch. Men 51 18 33

http://localhost/var/www/apps/conversion/tmp/video2012_13/GIO_VANZ_MAY/GARA%204%20PIACENZA%20ITAS/2%20SET%20palla%20zona%201.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/1_SET_19-20_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/2_SET_5-10_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/3_SET_22-23_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/4_SET_06-03_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/4_SET_19-22_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/GIO_VANZ_MAY/GARA%204%20PIACENZA%20ITAS/1%20SET%20piede%20Hold.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/GIO_VANZ_MAY/GARA%204%20PIACENZA%20ITAS/1%20SET%20piede%20Hold.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/4_SET_19-22_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/4_SET_06-03_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/3_SET_22-23_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/2_SET_5-10_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/1_SET_19-20_video_check.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/GIO_VANZ_MAY/GARA%204%20PIACENZA%20ITAS/2%20SET%20palla%20zona%201.wmv

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Lesson learned

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Reset com plaints and disp utes on bal l I/O

Less tension and m ore cooperat ion of the players

Adrenaline used for other game si tuat ions 1

More tasks for referees

Less complexi ty of game management

Effects on refereeing technics

Video Check Lesson learned

http://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/3_SET_15-15_espulsione02.wmvhttp://localhost/var/www/apps/conversion/tmp/video2012_13/ITAS_PC_Gara5/3_SET_15-15_espulsione02.wmv

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Second referee displacements

Video Check Lesson learned

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Thank you

for your at tent ion