manuals.online logo
Brands
  1. Home
  2. •
  3. Brands
  4. •
  5. GeoVision
  6. •
  7. Security Camera
  8. •
  9. GeoVision GV-LPR User manual

GeoVision GV-LPR User manual

GV-LPR
Qualified Image Criteria
2010/11
English
© 2010 GeoVision, Inc. All rights reserved.
All GeoVision Products are manufactured in Taiwan.
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
GeoVision GV-LPR Licence Place Recognition software
Quick Setup Guide
The qualified image examples
To increase the licence plate recognition accuracy, you need to install the LPR
camera in the proper way to capture the qualified plate images. When you
install the LPR camera, there are certain criteria to meet, including the plate
size, the lighting condition and the angle of the camera. In this document, we
provide the qualified image examples, and the unqualified image examples,
which are generated when the LPR camera is set in an improper way. We also
provide the easy installation instructions on how to fix those unqualified plate
images.
You should capture and fill the image with a full width of vehicle. In this way,
the height of the captured plate characters would approximately fall between
30 and 35 pixels.
Day
Example
Night
Example
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
The unqualified image examples
The plate is the hollow-letter type:
Example
Try to:
Reduce the illumination.
The image is unclear:
Example
Try to:
Adjust the focus or the shutter speed of the camera.
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
The image is overexposed:
Example
Try to:
Reduce the illumination, or adjust the angle or the setup direction of the
camera.
The image is interfered by the headlight:
Example
Try to:
Use the professional LPR camera to avoid the headlight interference.
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
The plate size is too small:
Example
Try to:
Zoom in the camera or reduce the distance between the camera and the
vehicle. You should capture and fill the image with a full width of vehicle.
The plate size is too big:
Example
Try to:
Zoom out the camera or enlarge the distance between the camera and
the vehicle. You should capture and fill the image with a full width of
vehicle.
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
The image contrast is low:
Example
Try to:
Improve the lighting condition.
The plate is slanted:
Example
Try to:
Adjust the camera setup angle and make sure the angle of deviation in
the captured license plate is within eight degrees.
8°
More than 8°
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
The plate is in shadow:
Example
Try to:
Avoid placing the camera where it can be subjected to direct sunlight or
reflections. Visible shadow edges in the camera view may degrade the
recognition accuracy.
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
Camera Installation
●Installing the camera in the front (Recommended): Install the camera in
the upper front of the vehicle as shown below. Ensure to install the camera
to meet the following conditions. In this way, the height of the captured plate
characters would approximately fall between 30 and 35 pixels.
◦The captured image should be filled with a full width of the vehicle.
◦The distance between the vehicle and the camera should be within 5 to
50 meters; the camera height should be within 3 to 9 meters; the camera
setup angle should be within 30 degrees.
LPR Camera Installation Guidelines
3~9M
5~50M
< 30°
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
●Installing the camera on the side: Install the camera in the side front of
the vehicle as shown below. To avoid capturing unnecessary contents in the
image, the camera should be installed in a higher position to capture the
front part of the vehicle only. The camera setup angle should also be within
15 degrees.
< 15°
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
Detection Mode
You can set up two detection modes in the GV-LPR System: Motion
Detection mode and I/O Device mode. In the Motion Detection mode, the
GV-LPR System starts recognition when any motion is detected. It is normally
used on freeway recognition where the vehicle speed is high. In the I/O
Detection mode, the GV-LPR System starts recognition when the input device
is triggered. The input trigger will further trigger the output device. This mode is
normally used for a car park or an entrance.
●Motion Detection Mode: The camera is triggered to capture images by
motion detection. It is recommended when no frequent false motions, such
as from animals or people, occurred in the recognition area, or when the
false image capture is not an issue for you. The benefit of this mode is that
the license plate will surely be captured in the image.
●I/O Detection Mode: The camera is triggered to capture images by input
triggers, such as the IR sensor or the Magnetic Loop Detector. The benefits
of this mode are that the false motion detection can be avoided and the
CPU load is lower.
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]
9F, No. 246, Sec. 1, Neihu Rd., Neihu District, Taipei, Taiwan
Tel: +886-2-8797-8376 Fax: +886-2-8797-8335
[email protected]
http://www.geovision.com.tw
www.cctvireland.ie
Lo-Call 1890 866 900
[email protected]

Other manuals for GV-LPR

1

Other GeoVision Security Camera manuals

GeoVision GV Series User manual

GeoVision

GeoVision GV Series User manual

GeoVision GV-EFER3700-W User manual

GeoVision

GeoVision GV-EFER3700-W User manual

GeoVision GV-GPH2800 User manual

GeoVision

GeoVision GV-GPH2800 User manual

GeoVision GV-EBD4700 User manual

GeoVision

GeoVision GV-EBD4700 User manual

GeoVision GV-SD200 User manual

GeoVision

GeoVision GV-SD200 User manual

GeoVision GV-FER12700 User manual

GeoVision

GeoVision GV-FER12700 User manual

GeoVision GV-Fisheye GV-FE2301 User manual

GeoVision

GeoVision GV-Fisheye GV-FE2301 User manual

GeoVision GV-IP LPR-DL User manual

GeoVision

GeoVision GV-IP LPR-DL User manual

GeoVision GV-BX110D User manual

GeoVision

GeoVision GV-BX110D User manual

GeoVision GV-BL8714 User manual

GeoVision

GeoVision GV-BL8714 User manual

GeoVision GV-CBW120 User manual

GeoVision

GeoVision GV-CBW120 User manual

GeoVision GV-VD8700 User manual

GeoVision

GeoVision GV-VD8700 User manual

GeoVision GV-SD2322-IR User manual

GeoVision

GeoVision GV-SD2322-IR User manual

GeoVision GV-VD120D User manual

GeoVision

GeoVision GV-VD120D User manual

GeoVision GV-VD8700 User manual

GeoVision

GeoVision GV-VD8700 User manual

GeoVision GV-IP Speed User manual

GeoVision

GeoVision GV-IP Speed User manual

GeoVision GV-BX2802 User manual

GeoVision

GeoVision GV-BX2802 User manual

GeoVision myGVcloud HCW120 User manual

GeoVision

GeoVision myGVcloud HCW120 User manual

GeoVision GV-IP SERIES User manual

GeoVision

GeoVision GV-IP SERIES User manual

GeoVision GV-EBDP5800 User manual

GeoVision

GeoVision GV-EBDP5800 User manual

GeoVision GV-BX110D User manual

GeoVision

GeoVision GV-BX110D User manual

GeoVision GV-EBD4711 User manual

GeoVision

GeoVision GV-EBD4711 User manual

GeoVision GV-LPR CAM 10A User manual

GeoVision

GeoVision GV-LPR CAM 10A User manual

GeoVision GV-ADR Series User manual

GeoVision

GeoVision GV-ADR Series User manual

Popular Security Camera manuals by other brands

ELiiXA 3V MONOCHROME CAMERA user manual

ELiiXA

ELiiXA 3V MONOCHROME CAMERA user manual

Guardzilla 180 Outdoor quick start guide

Guardzilla

Guardzilla 180 Outdoor quick start guide

Bosch LTC 1312/20 FlexiDome I Instructions for use

Bosch

Bosch LTC 1312/20 FlexiDome I Instructions for use

Vicon V810B quick guide

Vicon

Vicon V810B quick guide

JVC V.Networks VN-C2U instructions

JVC

JVC V.Networks VN-C2U instructions

Syscom Video Direct IP Operation manual

Syscom Video

Syscom Video Direct IP Operation manual

urmet domus 1092/605 quick guide

urmet domus

urmet domus 1092/605 quick guide

Indexa DF-250 operating instructions

Indexa

Indexa DF-250 operating instructions

NETGEAR arlo Wire-Free Camera quick start guide

NETGEAR

NETGEAR arlo Wire-Free Camera quick start guide

Surveon CAM42xx Series user manual

Surveon

Surveon CAM42xx Series user manual

AIDA PTZ-NDI-X Upgrade guide

AIDA

AIDA PTZ-NDI-X Upgrade guide

Asoni CAM634M user manual

Asoni

Asoni CAM634M user manual

Sony Vaio PCGA-UVC11A operating instructions

Sony

Sony Vaio PCGA-UVC11A operating instructions

Vimar Elvox TVCC 46613.036 user manual

Vimar

Vimar Elvox TVCC 46613.036 user manual

Hitachi BE-IR20 Operation guide

Hitachi

Hitachi BE-IR20 Operation guide

Axis P1367-E user manual

Axis

Axis P1367-E user manual

Lorex VQ1636HRB quick start guide

Lorex

Lorex VQ1636HRB quick start guide

JideTech P9 user manual

JideTech

JideTech P9 user manual

manuals.online logo
manuals.online logoBrands
  • About & Mission
  • Contact us
  • Privacy Policy
  • Terms and Conditions

Copyright 2025 Manuals.Online. All Rights Reserved.