Recognizers:
$1
•
$N
•
$P
•
$P+
•
$Q
•
Impact of $-family
Tools:
GECKo
•
GREAT
•
GHoST
•
AGATe
Gesture recognition used to be difficult, arcane, and specialized. Then in 2007 came the $1 recognizer and the $-family that followed. Now gestures are easy to add to any project!
The $-family recognizers, of which $1, $N, $P, and $Q are canonical members, along with enhancements Protractor and $P+, have had significant impact on the deployment of gestures in interactive prototypes. The $1 paper, published at ACM UIST 2007, is the 3rd most-cited UIST paper according to the ACM Digital Library. As of the date at the bottom of this page, Google Scholar shows the $1 paper being cited 813 times. Beyond citations, $1 has been implemented in scores of projects. Its use has gone beyond its initial intent for stroke-gesture recognition to things like hand-pose recognition.
The $1 paper and its siblings
led to numerous follow-ons by other researchers,
leading to the "extended
Beyond academic impact, $1 and the $-family have been rapidly absorbed into industry prototypes. For example:
The extended $-family
$1 and the other canonical $-family recognizers inspired other researchers to develop follow-ons that share
the $-family motivation. We and their authors consider the following to be the "extended family" of the
Some examples of the $-family in industry prototypes
The $-family recognizers have been used in industry prototypes. Below are five nice examples:
Some examples of the $-family in others' research projects [Google Scholar for $1]
Many research projects have used the $-family recognizers, especially $1. Below are six projects by others:
$-family implementations by others
Over the years, many developers have sent their own implementations of our $-family recognizers in various programming languages. We make no representation of the correctness or completeness of these implementations, but offer them here "as is." (Have one to add? Email wobbrock@uw.edu.)
Copyright © 2018-2019 Jacob O. Wobbrock. All rights reserved.
Last updated January 6, 2019.