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Laser Actuated Mouse System. This application can be used by physically challenged people as it includes hands free operation . Laser light. A laser light can be fitted with a head band or it can be fitted with spectacles. Replacement I nterface for a Wireless Mouse. Problem. Solution. - PowerPoint PPT Presentation
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Laser Actuated Mouse System
Presented by :
Atul Chowdhary
Vivek Agrawal
Introduction
The project presented here describes an alternative method for controlling a mouse using a laser pointer.
Objectives
This application is helpful for physically challenged people as it provides hands free operation.
Through a standard laser pointer , we can revolutionized the presentation industry by introducing a new freedom of movement.
Replacement Interface for a Wireless Mouse.
This application can be used by physically challenged people as it includes hands free operation
Applications
A laser light can be fitted with a head band or it can be fitted with spectacles.
Laser light
Applications
Through a standard laser pointer , we can
revolutionized the presentation industry by introducing a new
freedom of movement.
Applications
Replacement Interface for a
Wireless Mouse
Find the brightest area on the
screen.
Average positions of all bright points on the
screen to extract pointer location.
Transform the resulting coordinates to screen coordinates.
Update pointer position.
If there is a click command given, trigger a mouse click event on the updated pointer location
Algorithm
Future Improvements
Finding a small spot on the screen is
problematic due to high rates of
noise.
Use an infrared camera and laser
pointer let us “see” only the
laser pointer and ignore
background noise.
Problem
Solution
Future Improvements
Mapping of the laser pointer
from the screen to actual
projection screen may not be
precise
Using the concept of pattern
recognition, we can directly point the laser pointer on the projection
screen
Problem
Solution
Don’t point lasers in
people’s eyes or any
light reflecting surface!
Try to avoid the green color laser
diode as it is most harmful to the human eyes.
Ethical Considerations
Conclusion
Our goal in this project was to design alternative system for controlling mouse cursor movements and mouse clicks events.
The solution described here answer the problem that presented above.
The solution is helpful for physically challenged people as it provides hands free operation.
Books
• R. C Gonzales and R. E Woods, “Digital Image Processing” Reading, MA: Addison-Wesley, 1992.• Jain, A. K.. “Fundamentals of digital image processing” . Prentice Hall: Englewood Cliffs,NJ ,1989
Web sites
• “laser light”- Wikipedia, the free encyclopedia. • www.mathswork.com
Journals
• IEEE Proceedings (http://www.ieee.org)
References
Special Thanks to
• Kuntal Ghosh: Lecturer, I.S.I. KOLKATA (M.I.U.)
Thank you all for your time and patience.We could not have done it without you!
Any Questions ? ? ?
SHOOT ! ! !
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