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This is a blog where a professor from Northeastern University's Math department posts mathematical comments on the television show "Numb3rs". To comment, write to bridger@neu.edu.
Unique visitors since 6/14/2005:
July 10, 2005
(This blog is partially in response to an inquiry from Chris.)
Some very surprising things can be done with image-processing using techniques far more sophisticated than what you can do in Photoshop.
Suppose you have a shot of a car license plate -- either from a camera or from a video camcorder. If it is not already digital, you digitize it. This means that you convert the image into discrete dots called pixels... continued »
July 9, 2005
Last night's rerun on Counterfeiting had some interesting math I never commented about when it first appeared this past season.
The complicated patterns that appear on currency -- used to discourage counterfeiting -- are called Guilloche (ghee-oh-shay) figures, and are now generated by computers.
For further remarks and references