This document describes the Hawk Eye camera technology system. Hawk Eye uses multiple high-speed video cameras placed around a field to track the motion of a ball. By triangulating the visual data from the cameras, Hawk Eye can reconstruct and predict the ball's trajectory in 3D. It is used in sports like cricket, tennis, soccer, and snooker to determine outcomes like boundaries or goals.

1. HAWK EYE CAMERA
TECHNOLOGY
BY:
MAYUR BORICHA 017
DISHESH JANI 047

2. Introduction.
• Teams across the world are becoming more and more
professional with the way they play the game and have
the supporting staff who help them to improve
performance by using technology.
• The Hawk Eye is one such technology which is
considered to be really top notch in sports. The basic
idea is to monitor the trajectory of the ball during the
entire duration of play.

3. What is Hawk Eye??
• Hawk-Eye is the most sophisticated officiating tool
used in any sport.
• It is accurate, reliable and practical.
• Developed By Paul Hawkins from U.K.
• Hawk-Eye first made its name in Cricket broadcasting,
and also has diversified into Tennis, Snooker and
Football etc. for example;
• CRICKET : Umpire Decision Review System
• FOOTBALL : Goal Line Technology

4. What It Can Do??
• Track the path of the ball
• Visualize path of the ball
• Third referee Of the game.
• Replays the event on screen OR can Broadcast it

5. What It Contains??
• Tracking System
• High Speed Video Camera
• Speed gun
• Video Replay System

6. Tracking System.
• Tracking System Measures The Following
Aspects:
• Speed of the ball
• Swing of the ball
• How much the ball bounced

7. Principle Of Hawk Eye..
• All Hawk-Eye systems are based on the
principles of triangulation using the visual
images and timing data provided by at least
four high-speed video cameras located at
different locations and angles around the
area of play.

8. Procedure of Working.
Camera Calibration.
Ball Recognition.
Geometric Algorithm.
3D Positioning Of Ball.
Track Of The Ball.
Predicted Flight Of The Ball.

9. Camera Calibration
• Radial distortions
• Piecewise linear approximation
with various zooms
• Full resolution static image
• Court fully filling the field of view

10. Ball Recognition
• What are we going to use?
• Shape, size, enough?
• What about shadow?
• Position of sun and previous position

11. Geometric Algorithm
• Differs With Use .
• Eg. For Simple Case and for Cricket Ground , Both are
Different.

12. 3D Reconstruction OR Positioning of Ball

13. Track And Predict Of the Ball
• Mainly the Following Are used :
• 3D coordinates in time sequence And Approximation.

14. Example : Goal Line Technique in
FIFA"14