This document presents information on virtual keyboard technology. It discusses how a virtual keyboard works using camera tracking of finger movements rather than physical keys. The key components are an infrared light source, sensor module, and pattern projector. It provides advantages like portability and not needing a flat surface, though drawbacks include higher costs and needing practice. Virtual keyboards can be used with devices like phones and as an input for computers and games.
This Presentation Clears the concepts of Virtuality. It Gives Brief Introduction on What is Virtuality ?
History of Virtual Key Board ?
What is Virtual Key Board ?
How to use it ?
Keyboard without keys, virtual keyboard uses sensor technology and artificial intelligence. Awesome replacement for QWERTY keyboard. Can implement all types of keyboards. Example of Augmented Reality.
This Presentation Clears the concepts of Virtuality. It Gives Brief Introduction on What is Virtuality ?
History of Virtual Key Board ?
What is Virtual Key Board ?
How to use it ?
Keyboard without keys, virtual keyboard uses sensor technology and artificial intelligence. Awesome replacement for QWERTY keyboard. Can implement all types of keyboards. Example of Augmented Reality.
It is a power point presentation on a new technology call virtual keyboard. It simulates the job of a keyboard and allows users to communicate with different devices. This presentation also consist the working mechanism of the projection based virtual keyboard.
Smart Note Taker is a helpful product that satisfies the needs of the people in today's technologic and fast life. This product can be used in many ways. The Smart Note Taker provides taking fast and easy note making to people who are busy with one's self.
With the help of Smart Note Taker, people will be able to write notes in air, while being busy with their work. The written note will be stored in the memory chip of the pen, and will be able to read in digital medium after the job is done. This saves time and facilitate life.
This product is simple but powerful. It has the ability to sense 3D shapes and motions that the user tries to draw. The sensed information will be processed and transferred to the memory chip and then will be monitored on the display device. The shape that is drawn can be broadcasted to the network or sent to a mobile device.
It was the touch screens which initially created a great outbreak. Gone are the days when you have to fiddle with the touch screens and end grazing up. Touch screen displays are pervasive worldwide. Frequent touching a touchscreen display with a pointing device such as a finger or if there is any scratch caused due to major problems can result in the gradual de sensitization of the touchscreen to input and can ultimately lead to blip of the touchscreen. To avoid this, a simple user interface for Touchless control of electrically operated equipment is being developed. Elliptic Labs innovative technology lets you control your apparatuses like Computers, MP3 players or mobile phones without touching them. A simple user interface for Touchless control of electrically operated equipment. Unlike other systems which depend on distance to the sensor or sensor selection this system depends on hand and or finger motions, a hand wave in a certain direction, or a riffle of the hand in one area, or holding the hand in one area or pointing with one finger for example. The device is based on optical pattern recognition using a solid state optical matrix sensor with a lens to detect hand motions. This sensor is then connected near to a digital image processor, which interprets the patterns of motion and outputs the results as signals to control fixtures, appliances, machinery, or any device well regulated concluded electrical signals. D. Gokila | P. Kiruthika ""Touch Less Touch Screen Technology"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd21737.pdf
Paper URL: https://www.ijtsrd.com/computer-science/other/21737/touch-less-touch-screen-technology/d-gokila
It is a power point presentation on a new technology call virtual keyboard. It simulates the job of a keyboard and allows users to communicate with different devices. This presentation also consist the working mechanism of the projection based virtual keyboard.
Smart Note Taker is a helpful product that satisfies the needs of the people in today's technologic and fast life. This product can be used in many ways. The Smart Note Taker provides taking fast and easy note making to people who are busy with one's self.
With the help of Smart Note Taker, people will be able to write notes in air, while being busy with their work. The written note will be stored in the memory chip of the pen, and will be able to read in digital medium after the job is done. This saves time and facilitate life.
This product is simple but powerful. It has the ability to sense 3D shapes and motions that the user tries to draw. The sensed information will be processed and transferred to the memory chip and then will be monitored on the display device. The shape that is drawn can be broadcasted to the network or sent to a mobile device.
It was the touch screens which initially created a great outbreak. Gone are the days when you have to fiddle with the touch screens and end grazing up. Touch screen displays are pervasive worldwide. Frequent touching a touchscreen display with a pointing device such as a finger or if there is any scratch caused due to major problems can result in the gradual de sensitization of the touchscreen to input and can ultimately lead to blip of the touchscreen. To avoid this, a simple user interface for Touchless control of electrically operated equipment is being developed. Elliptic Labs innovative technology lets you control your apparatuses like Computers, MP3 players or mobile phones without touching them. A simple user interface for Touchless control of electrically operated equipment. Unlike other systems which depend on distance to the sensor or sensor selection this system depends on hand and or finger motions, a hand wave in a certain direction, or a riffle of the hand in one area, or holding the hand in one area or pointing with one finger for example. The device is based on optical pattern recognition using a solid state optical matrix sensor with a lens to detect hand motions. This sensor is then connected near to a digital image processor, which interprets the patterns of motion and outputs the results as signals to control fixtures, appliances, machinery, or any device well regulated concluded electrical signals. D. Gokila | P. Kiruthika ""Touch Less Touch Screen Technology"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd21737.pdf
Paper URL: https://www.ijtsrd.com/computer-science/other/21737/touch-less-touch-screen-technology/d-gokila
It's about laser virtual keyboard technology , Now day's the technology increases day by day but technology in input not developed but in this ppt all the explanation of laser keyboard have full details.
Virtual keyboard
A virtual keyboard is a software component that allows a user to enter characters.[1] A virtual keyboard can usually be operated with multiple input devices, which may include a touchscreen, an actual computer keyboard and a computer mouse.
An optical virtual keyboard was invented and patented by IBM engineers in 2008.[6] It optically detects and analyses human hand and finger motions and interprets them as operations on a physically non-existent input device like a surface having painted keys. In that way it allows to emulate unlimited types of manually operated input devices such as a mouse or keyboard. All mechanical input units can be replaced by such virtual devices, optimized for the current application and for the user's physiology maintaining speed, simplicity and unambiguity of manual data input.
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ABSTRACT: Now a Days computing is not constraint to desktops and laptops, it has got its way into mobile devices like mobile phones. But the input device for the computing process has not been modified from the last few years. Eg:- QWERTY keyboard. Virtual Keyboard allows users to work on any surfaces by using sensor technology.Our device will have three main partsi.e the camera, IR sensor, lazer pattern projector. The Virtual Keyboard uses light to project a full-sized computer keyboard onto almost any surface, and disappears when not in use. Used with Smartphone and PDAs, the keyboard provides a practical way to do email, word processing and spreadsheet tasks, allowing the user to leave the laptop computer at home.
These Notes from the class of BS EDUCATION 1st Semester (Spring) Session 2023-2027 Teacher :Ch Naveed Afzal
semester started in march 2023 and end in july 2023
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3. Introduction
The aim of this technology is to develop an “Augmented Reality” (AR)
solution for a handheld device that enables the user to write text.
A virtual keyboard is actually a key-in device, roughly a size of a fountain pen
& which uses highly advanced laser technology.
In a virtual keyboard, camera tracks the finger movements of the typist to get
the correct keystroke.
The software and hardware part recognizes the typed characters and pass it
to the computer.
The main features are: platform independent multilingual support for
keyboard text input, built-in language layout and setting, copy/paste etc.
4. QWERTY is the most common keyboard layout on English-language
computer and typewriter keyboards.
The processor in a keyboard has to understand several things that are
important to the utility of the keyboard, such as:
Position of the key in the key matrix.
The amount of bounce and how to filter it.
The speed at which to transmit the typematics
Qwerty keyboard
6. Virtual keyboard
Virtual Keyboard is just another example of today’s computer trend of
"smaller and faster“.
Virtual Keyboard uses sensor technology and artificial intelligence to let
users work on any surface as if it were a keyboard.
The keyboard is projected optically on a flat surface and, as the user
touches the image of a key, the optical device detects the stroke and sends
it to the computer.
7. Virtual keyboard used in PDA’s
A virtual keyboard is a keyboard that a user operates by typing on or within a wireless
or optical-detectable surface or area rather than by depressing physical keys.
The Virtual Keyboard uses light to project a full-sized computer keyboard onto almost
any surface, and disappears when not in use.
A virtual keyboard makes it possible for the user of a very small smart phone or a
wearable computer to have full keyboard capability.
The device detects movement when
fingers are pressed down. Those
movements are measured and the
device accurately determines the
intended keystrokes and translates
them into text .
8. Modules of Virtual Keyboard
The Virtual Keyboard system comprises of three modules:-
The sensor module
IR-light source
The pattern projector
9. Sensor module:
The Sensor Module serves as the eyes of
the Keyboard Perception technology .
The Sensor Module operates by locating
the user's fingers in 3-D space and tracking
the intended keystrokes.
Keystroke information processes and can
then be output to host devices.
10. IR Light source :
The Infrared Light Source emits a beam of
infrared light .
This light beam is designed to overlap the
area on which the keyboard pattern projector
or printed image resides.
This helps in recognizing the hand
movements and the pressing of keys .
11. Pattern projector:
The Pattern Projector or optional printed image presents the image of the
keyboard
This image can be projected on any flat surface.
The projected image is that of a standard QWERTY keyboard, with all the
keys and control functions as in the keyboard.
12. System Architecture
This Fig. shows the physical setup
of the system:-
The 3D range camera is placed
several cms over the input
surface, with a well-defined angle
facing the working area.
The size of the working
area, limited by the spatial
resolution of the camera, is 15 cm
25 cm, which is comparable to
a full-size laptop-computer
keyboard.
Virtual-keyboard demonstration-system
setup
The display projector is mounted on the camera, facing the same area, which
would generate the visual feedback for the keyboard and input information.
14. Advantages
Portability
Accuracy
Speed of text entry
Lack of need for flat or large typing surface
Ability to minimize the risk for repetitive strain injuries.
No driver software necessary, It can be used as a plug and play device.
15. Drawbacks
It is very costly.
The room in which the virtual keyboard is used should not be very bright so
that the keyboard is properly visible.
Virtual keyboard is hard to get used to. Since it involves typing in thin air, it
requires a little practice. Only people who are good at typing can use a
virtual keyboard efficiently.
16. Applications
High-tech and industrial Sectors.
Used with Smart phones, PDAs, email, word processing and spreadsheet
tasks.
As computer/PDA input.
Gaming control.
17. Conclusion
A virtual key boards claim to provide the convenience of compactness with
the advantages of a QWERTY keyboard.
A Virtual keyboard system based on a true-3D optical range camera.
It is also used in 6th Sense Technology Device in which it is not depends on
surface. The feedback text and/or graphics may be integrated with such
projector, thus enabling truly virtual working area.
Thus virtual keyboards will make typing easier, faster, and almost a pleasure.