Luxand Blink!

Luxand Blink!
Luxand, Inc.
http://www.luxand.com
Luxand Blink!
User’s Guide
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Table of Contents
Introduction ....................................................................................................................................................... 3
Installation ......................................................................................................................................................... 3
Program purchase and registration ................................................................................................................... 7
Configuration ..................................................................................................................................................... 9
How it works .................................................................................................................................................... 11
Settings............................................................................................................................................................. 13
Uninstall ........................................................................................................................................................... 20
Recommendations ........................................................................................................................................... 21
Report a bug..................................................................................................................................................... 22
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Introduction
Luxand Blink! is a biometric PC access application that enables users to log in to Windows by facial
recognition. Your face is captured by the webcam, matched against the registered profile, and identified by
the application.
Logging in using Luxand Blink! is remarkably easy. You no longer need to enter a username and password
when Windows starts up or is locked; the login process is completely automatic and is based on the
biometric data that Luxand Blink! receives.
To run Luxand Blink!, you’ll need:
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
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OS: Microsoft Windows Vista or Microsoft Windows 7
Video source: DirectShow-compatible webcam connected to your PC
HDD: Up to 20 Mb of free disk space on the hard drive
Installation
To install Luxand Blink!, follow the steps below:
1. Double-click LuxandBlinkSetup.exe to begin installation.
2. Click Luxand Blink! License agreement in the installation window.
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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3. Read the License Agreement carefully. If you agree to its terms, click I Agree.
4. If you want to install Luxand Blink! in a different folder, click Options. Choose the path to install the
program, select the desired Start menu folder, and click OK.
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5. Click Install Luxand Blink! to begin installation.
6. Wait until the software is installed into the selected folder.
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7. When you are prompted to select the webcam to be used for automatic login, select the desired webcam
from the list and click Apply.
You can change the default webcam at any time after installation by selecting the Camera option in the
Settings window.
When installation completes, the Configuration wizard appears. For more information about this
wizard, see Configuration.
If you have problems or errors during the installation, please contact our technical support team.
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Program purchase and registration
The unregistered version of the software allows you to use the program without any restrictions within 30
days.To purchase Luxand Blink!, you must have an active connection to the Internet. Click this link:
http://luxand.com/blink/buynow or click Buy Now! in the Settings window.
Select the payment method and fill in all required fields on the Order page.
Once the order is submitted, the download link and the license key are sent to you by email.
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Registration
To register Luxand Blink!, you need to enter your user name and the license key that was sent to you by
email. In the Settings window, click Enter key….
In the popup window, enter your user name and license key. Then, click Register!.
After installation, Luxand Blink! adds its icon to the system tray.
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Configuration
After you install Luxand Blink!, the program opens the Configuration wizard. This wizard is where you will
register your face (that is, have the program “remember” your face) for automatic login to Windows.
To register your face, follow these steps:
1. In the Configuration wizard’s Welcome window, do one of the following:
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To register your face now, click Next and continue to step 2.
To close the wizard and register your face later, click Configure later.
Note: If you do not want to register your face immediately after installation, you can do so later by
double-clicking the Luxand Blink! icon in the system tray and clicking the Remember button.
(Important! You must register your face before you can automatically log in to your PC by face.)
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2. Read the instruction in the next window carefully and click Next.
3. The program starts the enrollment of your face. Slowly turn your head to the left and to the right while
looking into the monitor.
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4. Once your face is registered, the program prompts you for your Windows login credentials and whether
you want to enable face locking. Do the following:
a. Type the password for your Windows account.
b. Click Finish.
How it works
When your face is registered, you can log in to Windows without having to type anything. Simply look into
the webcam and Luxand Blink! logs you in without requiring your username and password.
You can log in by face when the computer is locked, when you resume it from the Standby or Hibernation
modes, and when the current user logs off and a new user attempts to log in.
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Remember that you can still access your PC using your username and password if you would rather log in
that way instead of using the webcam.
After installation, Luxand Blink! adds its icon to the system tray.
By double-clicking the icon, you can bring up the Settings window where you can configure different
application settings (See: Settings). You can also open the window by clicking the right mouse button on the
tray icon and selecting Settings.
To disable automatic face login, click the right mouse button on the tray icon and select Disable.
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
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Double-click the Luxand Blink! icon in the system tray to open the Settings window, and then
click Disable.
Right-click the Luxand Blink! icon in the system tray and click Disable.
When face login is disabled, the tray icon looks like this:
To enable face login again, do one of the following:
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
Double-click the Luxand Blink! icon in the system tray to open the Settings window, and then
click Enable.
Right-click the Luxand Blink! icon in the system tray and click Enable.
Settings
If Luxand Blink! is disabled, you can enable it by selecting Run Luxand Blink! in the Programs menu.
To open the Settings window, you can either double-click the Luxand Blink! icon in the system tray or rightclick the tray icon and select Settings.
The Settings window allows you to do the following operations:
1. You can enable or disable face login to Windows. Click Enable or Disable, respectively.
Note: You can also enable or disable face login to Windows by right-clicking the Luxand Blink! icon in the
system tray and selecting the appropriate option.
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2. You can delete your biometric data. Click Delete.
Then, click Yes when prompted to continue.
Once your data is deleted, face login is impossible. To enable face login again, you must register your face
again.
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3. To register your face, click Remember.
This opens the Configuration wizard. For more information about registering your face, see Configuration.
4. You can also select the camera to use for face authentication. Click Camera.
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Select a camera, and then click Apply.
If you have a new webcam, we recommend that you register your face again.
5. Click Help to read the Help file.
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6. If you do not want the program to run at Windows startup, click Don’t run. Note, however, that face login
remains enabled.
To run Luxand Blink! at Windows startup, click Run.
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7. Click History to view your computer’s login history.
By using the Login history, you can view and save photos of people who have attempted to log in to your
system. You can also view and save your own login photos.
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8. In High Convenience mode, Luxand Blink! learns your facial appearance each time you log in. However,
this could compromise security if someone else logs in with your password. In High Security mode, training
is disabled.
9. Show Diagnostics helps troubleshoot errors. For more information, see Report a bug.
10. If you have questions or suggestions about the program, click Give us your feedback. This opens your
default mail client with a preset message to us.
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Uninstall
You can uninstall Luxand Blink! from the Control Panel or from the Windows Start menu.
To uninstall Luxand Blink! from the Control Panel, follow these steps:
1. Click Start.
2. Click Control Panel.
3. Select Programs and Features.
4. Select Luxand Blink! and click Delete.
The Blink! Uninstaller window appears.
5. Click Yes to confirm the uninstallation process. The uninstaller removes Luxand Blink!’s files from the
computer.
To uninstall Luxand Blink! from the Start menu, follow these steps:
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1. Click Programs.
2. Select the Luxand  Blink! folder.
3. Click Uninstall Luxand Blink!.
The Luxand Blink! Uninstaller window displays. Follow the same steps as above.
If you want to reinstall Luxand Blink!, click LuxandBlinkSetup.exe. You will be prompted to uninstall Luxand
Blink!. Then click LuxandBlinkSetup.exe to begin installation.
Recommendations
Follow the recommendations below to ensure error-free performance of Luxand Blink!:
Face registration
When you register your face in the Configuration wizard or log in to Windows by face, make sure your face is
in the camera frame and no other faces are in the camera’s focus. Avoid turning your head at more than a
30-degree angle.
Camera
Different cameras have different optical distortions that may influence face authentication. Therefore, we
recommend that you use the same camera for face login that you used to register your face. If you plugged
in a new camera, select it in the Settings window, delete your current registration data, and register your
face again.
Lighting
For better recognition, we recommend homogenous soft lighting. Try to avoid extremely bright light (for
example, light from a window or bright lamp), light falling at an angle (for example, light from a table lamp
that stands on one side), and poor lighting conditions.
Facial expression
When you register your face or log in, keep a calm expression on your face. Emotional facial expressions
(such as laughter, closed eyes, or hair covering your face) can make it difficult, and sometimes impossible,
for Luxand Blink! to recognize your face.
If you wear glasses, be aware that recognition can also be hindered by the light reflected from the glasses.
Therefore, we recommend that you take off your glasses when you register your face or log in.
Finally, changes in appearance can influence recognition. If you think your look has changed significantly,
you should register your face again.
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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Report a bug
If you find a bug in the application, you can help us fix it in the next release. In the Settings window, click
Show Diagnostics.
In the resulting window, click Copy to clipboard to copy data required for analysis to the clipboard. Paste
this information into an email message and send it to support@luxand.com. Or, click Save as… and attach
the saved file to the email.
In the Subject field of the message, type "Support – Luxand Blink!" (You can open the preset message
template in your default mail client by clicking the Give us your feedback link in the Settings window).
Copyright © 2005–2011 Luxand, Inc. http://www.luxand.com
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