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Please find below short description of Luxriot LPR:
How to install and get trial license key:
1. Install LPR
Please note that LPR require Luxriot Client Kit API to be installed on same PC. So if you have system where
no Luxriot Client application or Server installed then please install the Client application first. Also please
make sure that you have Microsoft .NET Framework 3.5 version installed also.
http://msdn.microsoft.com/en-us/netframework/cc378097.aspx
2. After LPR successful installation please start it with Administrator permissions (MS Windows Vista/7
right click on short-cut DVR License Plate Recognition and select Run as Administrator ).
On first LPR start you will get notification that no LPR license key available.
Click Next and Get Trial License. You will be issued with the trial license for 14 days. Please note that only
one Trial license key assigned for Public IP, so you will be unable to get two trial licenses in a same local
network and please make sure that you have a proper PC to run LPR test. Please contact [email protected]
if you have any problems with LPR licenses.
3. After the Trial key issued for your LPR you can connect server and set video stream for recognition.
Please make sure that you have camera on the server connected that captures a number plates. If you have no
any cameras with a number plates then you can set Emulation cameras on your Luxriot server using following
video file http://luxriot.com/Downloads/Temp/SANY0011.h264 .
If you have no camera that can do it then you can connect camera Emulation with Latvian numbers
4.Start LPR and open Camera Setup Wizard
5. Select a camera you need to run LPR
6. Connect camera without any changes. Click Next and Finish
7. Right click on the camera name you just added and select camera Setup Wizard
8. Click on Test to calibrate recognition
List of configuration features and descriptions:
CameraTitle - can not be changed in current version
Contrast Level - expected contrast of License plate on input images (leave as Medium).
Medium - should be used in most cases, since LPR recognition algorithm is adaptive to different lighting
conditions
Low - low contrast
High - high contrast
Country code - the ISO 3166 two character country code, where LP was issued (Latvia - LV, Germany - DE,
US- USA ), supported countries:
* Austria (AT)
* Belgium (BE)
* Brazil (BR)
* Bulgaria (BG)
* Chile (CL)
* Columbia (CO)
* Denmark (DK)
* Estonia (EE)
* Finland (FN)
* Germany (DE)
* Croatia (CR)
* Hungary (HU)
* India (IN)
* Indonesia (ID)
* Israel (IL)
* Italy (IT)
* Kuwait (KW)
* Latvia (LV)
* Lithuania (LT)
* Netherlands (NL)
* Poland (PL)
* Romania (RO)
* Russia (RU)
* Serbia (RS)
* Singapore (SG)
* Slovenia (SK)
* Spain (ES)
* Sweden (SE)
* Taiwan (TN)
* Turkey (TR)
* Ukraine (UA)
* United Kingdom (GB)
* United States (US)
more countries will be added in a future
Deinterlace - leave as False we are using IP cameras
DeviationAngle - The lower deviation angle value can inform LPR to look for plates only in smaller angles
diapason relative to horizontal line. This could increase recognition time up to 40%. In case the static camera
is positioned so, that all vehicles appears to be rotated on specific angle (for example 17 degrees), the rotation
angle option can compensate it (set to -17 degrees) and vehicles will be present for Engine as horizontally
aligned. This fact will make it possible to minimize the deviation angle.. (sufficiently effect CPU load and
recognition precision) Less value - less load
HistogramEqualization - indicating whether the Histogram Equalization (contrast adjustment) pre-processing
method should be executed.(sufficiently effect CPU load and recognition precision) Please leave it as False
MaskFile - can not be changed (not implemented in current version)
Minimum/Maximum characters height - Minimal and maximal expected height of License plate on the
image.
Plate colour schema - LPR expects to read License plates with either dark letters on light background, or light
letters on dark background.
Precise mode - Possible values are:
PM_Normal - for video mode and images with normal quality without noise and blurring.
PM_Mode1 - for noised and night images.
PM_Mode2 - for noised and night images captured with motion blur effect.
PM_Night - for night images captured with IR illumination.
Plate Presence Time (ms) - To be detected the plate should be found in at least half of frames during this
time. The bigger this value, the more reliable recognition.
Recognition Enabled - Enabled/Disabled recognition.
Recognition FPS - Wanted processing rate of the video stream. Please set it as 3 or 5 if cars are moving with
normal speed.
RotateAngle - a value indicating whether the source image should be rotated by specified angle in degrees.
(sufficiently effect CPU load and recognition precision) Less value - less load
SaveImage - These feature enable snapshot save in data base. False disable shallots record into Database
(some simple type of external archive where frames with plates stored).
LPR constantly you links plates with archive. so you not need enable it if you want to get LPR and archive
linked.
ScanRectangle - The scan rectangle defines the active recognition area within the image and excludes the
areas where vehicle license plate number cannot be present at any time.
On the image below we show the scan rectangle, which cover all possible positions of license plates captured
by video equipment. (sufficiently effect CPU load and recognition precision)
Smaller rectangle - less load
9. Click Next and finish camera configuration.
10. Please save configuration you made as it avoids configuration loss in case of application faulty.
11. License plate recondition take a few seconds so if all calibration correct and software recognize numbers
you will get list of numbers and by click on any number you can get extended event log viewer that has search
option.