Document Configuration
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Document
Name:
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Face
Recognition Quick Start up Guide
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Document
Number:
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I-Cube-001.doc
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Revision:
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A
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Date:
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19
November 2003
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Electronic
File:
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.......\I-Cube\user
manuals
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Prepared
for:
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Development
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Author:
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Barry
T. Dudley (btdudleyAT I-Cube DOT co DOT za)
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Configured
by:
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BTD
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Security
Classification:
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None
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Distribution:
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Web
site (www.i-cube.co.za),
CD and Installed with Systems
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Distribution
Format:
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Word
(.doc) / PDF file
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I-CUBE
DataBase Search
The I-CUBE Database Search is designed to simply, easily, and
quickly get a fully functional face database search application up and running.
Figure 1 I-Cube DB
Search desktop icon
Face
Image Comparison
Open
the application by double clicking the short cut
on
the desktop
“I-CUBE
Database Search” or select the application from:
Start,
programs, I-Cube, I-CUBE DB Search.
Figure 2 I-Cube DB
Search application
2.1.1.
Selecting
the (White Male) Database
Figure 3 Open an
existing database
Select ‘OPEN’ from the File menu or
Press the OPEN button on the toolbar.

Figure
4 Selecting the white male database
Select the database to open:
“C:\face
recognition\images\male\white\white male.txt”

Figure 5 White male
database
The
total number of images in the database is listed on the bottom right.
Next to the is the actual image number currently selected.
Figure
6
Column
names
There are 4 columns:
Image – lists the name and type of
image.
Alignment – indicates if the image is
aligned (none, poor, low, Medium and high)
Full –
Vector –
2.1.2.
Selecting a Subject
Figure 7
Importing
a subject
The ‘subject’ is the person who is
to be searched for in the database. You can select a subject from the currently
opened database by selecting a person and then pressing the ‘Set as Subject’
button or selecting the ‘Set as Subject’ item in the ‘Records’ menu.
Figure 8 Subject
directory selection
It
the subject is not part of the database, then use the ‘Import Subject’ under
the File menu, or press the Import Subject Button, or if the subject search
dialog is opened, you can simply drag and drop the image file to set it as the
subject.
Figure 9 Subject
image selection
Figure
10 Subject image display
Once a subject is set, its face position
must be determined. This can be done manually by clicking on the eye positions
with the mouse or by pressing the Auto Alignment button on the subject search
dialog.

Figure
12 Auto Alignment of the eye positions
Figure 11 Manual eye
position selection by clicking and holding

2.1.3.
Searching for a Subject
There are different types of searches
available. The types of searches available are Standard, Scan, and Hierarchical
(and variations of each). All types
are available through the main menu under Database, Search or from the subject
search dialog from the drop down list.
Suggested to use standard search initially until the database size is
over 500 000 images.
Figure 13
Search
results
Figure 14 Identical
image search results
The results are ranked according to
confidence, being the degree of match beter the two images.
The name of the image is listed on the right.
An identical image obtains a value of 10.
Use the arrow key down to see the other possible matchs.

Figure
15 Search results ranking

Figure 16 Closest
face image search result
Due to changes in lighting, size, colour, orientation, reflections, glasses, hair, expression, etc. it may be
necessary to check the top 5-10% of search results (images) in order to confirm
that the person is not in the database.
2.2.
Capturing own images
The
are a number of ways to capture images. In
all of them please ensure that the best quality image possible is captured.
The lap top has the ability to hold over 2 million images, thereafter a
larger hard drive is available. Hence
the best quality image is suggested to get the best results out of the I-Cube
face recognition system.
The following image files are supported:
JPEG (*.jpg), Bitmap (*.BMP), GIF (*.gif), Tiff (*.tif and tiff).
Figure 17 Closest
face image search result
When
saving the images, ensure they are saved to their own directory, so that each
person would have a directory of all images relating to one person.
2.2.1.
Analogue image capture (CCTV input)

Open the image capture application.
Figure 18 CCTV camera
application
When
the person is in the field of view, capture a number of images.
Save the image as a JPEG image to the
persons directory. If required edit
the image with I-Cube Media Editing application.
Figure
19 Demonstration of the optimal size of the face in the image

Figure 20 Digital
image capture
2.2.2.
Digital camera input
Ask the person to stand against a light
wall.
Take a number of images of the person.
Transfer these images to the persons
folder on the lap top.
If required edit the image with I-Cube
Media Editing application.
2.2.3.
Existing digital images
Any existing images will be added for
free to the database for you by I-Cube when the order is placed.
Either e-mail or write all images to CD and send to I-Cube at:
ordersAT I-Cube DOT co DOT za
2.3.
Creating
own/new image database
Open the I-CUBE DB Search application
Figure 21
I-Cube
DB Search desktop icon
Figure
22
I-Cube
DB Search application
Add images by either drag and dropping
images onto the application or by selecting ‘Import Record’ from the file
menu. Note, you can drag and drop entire directories.
Once all of the images are added to the
database, you must mark the eyes of each person. This can be done manually or
automatically.
Figure 23 I-Cube DB
Search desktop icon
In
order to manually mark the eye positions, make sure the ‘Toggle Alignment
Mode’ button is depressed on the tool bar and then left click on each eye in
the image. To automatically mark every
eye position, select the ‘All Records’ menu item under the Database/Auto
Align menu. For a single record, press the Auto Align button on the toolbar, or
select Auto Align from the Record menu.
Figure 24 Press and
hold to zoom in
Figure
25 Click once on the eye to mark the position of the eye
Marking the eye positions is one of the
most time consuming parts of preparing the database. Accurately marking the eyes
is essential for good recognition performance.

Figure 26 Press and
hold to zoom in
Figure
27 Click once on the eye to mark the position of the eye

Typically you will Auto Align the entire
database, then look to see which records were aligned with less than a
‘medium’ confidence. Those leftovers can then be manually aligned or the
FaceItDB settings can be re-adjusted and the records can re-aligned with ‘All
< Medium’ under the Database/Auto Align menu.
Figure 28
Auto
Align all records
Figure
29
Sort
records by alignment then manually fix
2.3.1.
Create the Face Templates
Figure 30 Create Full
Templates
Before you can search a database, you
must create the Face Templates. You can not search quickly if you search
directly on the images. Each face
must have a corresponding template stored in the database. These face templates
are about 3.5k in size. In this application, the templates are stored in a
single, large file outside of the database. This is called the FID (FaceItData)
file. Each face in the database has associated with it a description of where to
find its corresponding template. In this case, we store the file offset of the
data.
Select ‘Create Full Template’ from
the Database menu to create the templates. YOU MUST BE ON-LINE (connected to the
Internet) before you do this. Before or after you have created the
templates it is a good idea to de-fragment your hard drive. This helps increase
search speed. To further increase search speed one may want to create an
additional template called a vector template. This is an additional 88 bytes per
face. However, on larger databases it can drastically increase the search speed.
Select ‘Create Vectors’ from the Database menu to create these vector
templates.
IF
YOU HAVE ANY PROBLEMS PLEASE E-MAIL SUPPORT
AT I-CUBE (support@I-Cube.co.za)
I-Cube. All rights
reserved. Revised: January 13, 2008
.
Smart Cards, RFID, Biometrics and
Hand-Held Devices – Advanced Technologies Adopted
by Hospitals
Tier I Hospitals Spending Approximately 2% of
Their Revenues on IT - New Purchase Plus Maintenance and Upgrade
MUMBAI, India--(BUSINESS WIRE)--Frost & Sullivan recently hosted a two
day Healthcare IT Executive MindXchange – “IT
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Today, Tier I hospitals are spending approximately 2% of their revenues on
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