palmopen
Palmopen is a term used to describe a gesture-based input concept and the related technologies that recognize an open palm shown to a sensor to initiate actions or authenticate users. It is discussed in the context of human–computer interaction, where touchless control is desirable for accessibility, hygiene, or sterile environments. Palmopen can function as a non-biometric trigger or as part of a biometric system, depending on design goals.
Detection methods for palmopen range from standard cameras to depth sensors and infrared devices. Systems may
Common applications include unlocking devices, authorizing transactions, initiating media playback, or handing control between applications in
Technical considerations for palmopen include robustness to lighting variations, background clutter, and user diversity in hand
See also: gesture recognition, hand tracking, palmprint recognition, biometrics.