Paper [1] and home page [2] of the $1 Unistroke Recognizer.

[1] https://www.microsoft.com/en-us/research/wp-content/uploads/...

[2] https://depts.washington.edu/acelab/proj/dollar/index.html

But if they wanted to do the homage to $1 recognizer, shouldn't they call it €0.95 filter?

Edit: nvm, just realized they included the VAT

But now I gotta know why it's called the $1 recognizer! One question solved, another opened.

Edit: > It's because the algorithm is easy to implement and efficient in terms of compute usage to match a gesture. It's a "cheap and easy" recognizer, a $1 recognizer.