A Hashing
Application:
Finding Geometric Patterns
A Pattern Matching Example
Finding Geometric Patterns
Efficiently
A Simple Pattern Matching
Algorithm
How do we detect a hit?
An Improved Pattern Matching
Algorithm
Is it better?
Why check every pattern
point?
Improvement Using Hashing
What if we have to handle
both translation and rotation?
Geometric Hashing
Geometric Hashing, Continued
Geometric Hashing Advantages
Usage of Geometric Hashing