Ball Trajectory Sensor

Functionality
Functionality
User throws a projectile (Ping pong ball)
2 orthogonal CMOS camera modules
Triangulation, projectile path prediction
VGA projector output
Demo
Motivation
Hardware Design
Software Design
The software component of our project will
control the display to show the user where the
ball would hit the screen
Inputs: two 16-bit coordinates of where the ball
will hit
Output: A frame to the VGA core displaying the
position of the simulated collision
Biggest Challenge
Implementation of side camera – video decoder
chip on DE2 only supports one camera input
Analog multiplexer?
Second video decoder chip?
Calculations
Sample Code
Test Plan
Hardware
Module Functionality Testing
Camera, SDTV Video Decoder, SRAM
Software
VGA Controller
Integration Testing
Additional Feature
Dart board game
Project virtual dart board
Calculate contact point of ping pong ball with
virtual dart board
Display score based on accuracy
Time-dependent Features
2nd Camera
2D detection instead of 3D
Questions?