GESTURE TECHNOLOGY

GESTURE TECHNOLOGYA gestureis a form ofnon-verbal communicationin which visible bodily actions communicate particular messages, either in place ofspeechor together and in parallel with words. What Are GESTURESGestures are an important aspect of human interaction, both interpersonally and in the context of man-machine interfaces.

Gestures include movement of the hands, face, or other parts of the body. Types of gesturesIconic gesturesPointing gesturesMetaphoric gesturesBeat gestures

Types of GestureIconicIconic gestures represent object attributes, spatial relationships, and actions. For example, think about how you would describe gesturally a tall person or a wide river as you were talking about each of those things.Deictic, or PointingThese gestures are pretty basic, connecting speech to another idea, object of location. For instance, if youwere talking about someone across the room you mightpoint them.MetaphoricMetaphoric gestures put an abstract idea into a more literal, concrete form. Making your fingers into a v shape and raising above indicates your victory or winBeat GesturesBasically, these just keep the rhythm of speech, and they convey no semantic content whatsoeverHuman gestures constitute a space of motion expressed by the body, face, and/or hands. Among a variety of gestures, hand gesture is the most expressive and the most frequently used. Gestures have been used as an alternative form to communicate with computers in an easy way.What is Gesture Technology .?F motoin 5The ways of recognizing the gesture can be considered as a significant progress of the technology. Progress of image processing technology has played an important role here. Gestures have been captured by using infrared beams, data glove, still camera, wired and many inter-connected technologies like gloves, pendant, infrared signal network server etc in the past. TechnologySome technologys are based on Gesture like .

1.Sixth sense.2.Microsoft surface. etc.Sixth Sense TechnologySixth Sense is a wearable gestural interface that supplements the physical world around us with digital information and lets us use natural hand gestures to interact with that information.

It comprises of pocket projector mirror and a camera. The projector and the camera are connected to a mobile wearable device.

It enables us to link with the digital information available using natural hand gestures and automatically recognizes the objects and retrieves information related to it.What is Microsoft Surface?Project began in 2001Introduced in 2007A surface computing platform from Microsoft.

Microsoft Surface represents a fundamental change in the way we interact with digital content. With Surface, we can actually grab data with our hands, and move information between objects with natural gestures and touch.

9Basic working of Gesture Technology

Uses Of Gesture RecognitionSocially assistive roboticsBy using proper sensors worn on the body of a patient and by reading the values from those sensors, robots can assist in patient rehabilitation. The best example can be stroke rehabilitation.

Sign language recognition

Just as speech recognition can transcribe speech to text, certain types of gesture recognition software can transcribe the symbols represented through sign language into text.Virtual controllersFor systems where the act of finding or acquiring a physical controller could require too much time, gestures can be used as an alternative control mechanism. Controlling secondary devices in a car, or controlling a television set are examples of such usage.

Remote controlThrough the use of gesture recognition, remote control with the wave of a hand of various devices is possible.Lack of Gesture LanguageGesture Recognition ChallengesDifferent users make gestures differently, causing difficulty in identifying motionsMany gesture recognition systems do not read motions accurately or optimally due to factors like insufficient background light, high background noise etcRobustness