Automatic License Plate Recognition

AI-based automatic capturing and reading of the text of the license plates.

Visão Geral

What is ALPR?
The automatic license plate recognition (ALPR) is a technology based on artificial intelligence that reads the license plate numbers of the vehicles appearing in the captured images.

The deep learning AI based ALPR is capable of reading license plates from various angles and even when the vehicles are moving fast. For example, the camera may be installed above the traffic tilting downwards, or on the roadside looking sideways.

Camera Requirements
The cameras that are used for capturing clear ALPR-readable images have very good low light sensitivity so that they can maintain very high shutter speed to reduce motion blur while still capturing enough light to make the image clearly visible.

Those cameras also need to have a very good WDR, because they have to be able to read the front side license plates regardless of the interference from the headlights of the vehicle.

It is also important to have a high frame rate capability so that multiple images could be captures within that short moment while the vehicle is in the view of the camera. This way, there are more choices for the most ideal snapshot for the analysis.

Furthermore, it is important to decide how many concurrent lanes of traffic would one camera have to manage. Some cameras can manage 2 or even 3 lanes at the same time.

Camera or Server ALPR?
Once the clear image is captured, it will be forwarded to the ALPR analysis. It can be done either inside the camera directly, or by the remote AI server.

There are many benefits of having ALPR analysis done inside the camera directly - the faster response time, distributed computing power, and no AI license required. ACTi's solution is to use camera-based ALPR as the better choice.

Metadata Collection or Alert?
There are two main ways to handle the captured license plate information. One is to simply collect and pass forward to the management server, such as VMS. This way the camera does not need to make a decision about which license plates require special attention. The server collects metadata and stores it for the later search purposes.

Another way is to maintain a specific database inside the camera directly - as a whitelist or blacklist. The whitelist is used to manage the permitted visitors whereas the blacklist is mostly used for wanted vehicles by the law enforcement.

When the license plate is captured and the camera compares the result immediately with its database of license plates of interest. When the match is found, the camera alerts the VMS immediately. The VMS can be configured to take various actions automatically when such event comes in, such as producing audio alarm, popping up instant video from that specific video channel and more. The alert-based solution means that normally the VMS does not collect the metadata about the unrelated license plates and only receives license plate data from the camera upon the events.

Aplicações

ACTi ALPR cameras are designed for various applications, such as highways monitoring, city surveillance, and parking management.

Características

  • Various ALPR camera types - zoom bullet and PTZ
  • Resolution up to 9MP
  • Optical Zoom up to 60x
  • Frame rate up to 120fps under 2MP mode
  • Capturing vehicles moving up to 320 km/h Front and side installations
  • ALPR recognition distance ranging from 4.5 to 900 meters
  • Monitor up to 3 lanes simultaneously

Soluções

ACTi's ALPR solution consists of ALPR cameras and NVR. There is a wide range of camera options to choose from.
Read More

We recommend using ACTi's NVR 3 Corporate as the main management server of receiving either ALPR metadata or events from the camera. There is no AI license required. The regular video channel license is applied.
Read More

Caixa

Visualização em Matriz

Tipo de Produto
Tipo de arma de zoom
Ambiente aplicação
Interno/Externo
Lente
Ampliação
taxa de Zoom
40x
5MP
A214

Comparison

Modelo
A214
Imagem do Produto
Tipo de Produto
Tipo de arma de zoom
Maxima Resolução
5MP
taxa de Zoom
40x
Sensor Size
1/2.7"
Wide Dynamic Range
Extremo (150 dB)
Maximum Frame Rate
60fps
Áudio
bidirecional, Entrada de fonte de áudio externa, Line-out
Taxa máxima de fotogramas versus resolução
60@5MP, 60@4MP, 60@3MP, 60@2MP
Multi-Streaming
Fluxos Quádruplos
Construido em Analítico
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
Temperatura De Operação
-30ºC ~ 60ºC (-22ºF ~ 140ºF)
Conforme com a NDAA
Sim
Entrada/Saida Digital
2/2
Ambiente aplicação
Interno/Externo

Bullet

Visualização em Matriz

Tipo de Produto
Vari-focal Bullet
Ambiente aplicação
Externo
Lente
Vari-focal
9MP
A432-P1
Tipo de Produto
Zoom Bullet
Ambiente aplicação
Outdoor
Lente
Zoom
taxa de Zoom
3.6x 4x 4.3x 4.4x 4.5x
4MP
A429-P1
A431
A429
A431-P1
A431-P2
5MP
A412
A426
9MP
A432

Comparison

Modelo
A429
A431-P1
A431-P2
A429-P1
A431
Imagem do Produto
Tipo de Produto
Bullet Zoom
Bullet Zoom
Bullet Zoom
Bullet Zoom
Bullet Zoom
Maxima Resolução
4MP
4MP
4MP
4MP
4MP
taxa de Zoom
4.3x
4.3x
4.5x
4x
4x
Sensor Size
1/1.8"
1/1.8"
1/1.8"
1/1.8"
1/1.8"
Light Type
IR LED Adaptativo: 85m
IR LED Adaptativo: 85m
IR LED Adaptativo: 85m
IR LED Adaptativo: 100m
IR LED Adaptativo: 85m
Wide Dynamic Range
Extremo (150 dB)
Extremo (150 dB)
Extremo (150 dB)
Extremo (150 dB)
Extremo (150 dB)
LightGuard
Sim
-
-
-
-
Maximum Frame Rate
120fps
30fps
30fps
120fps
30fps
Áudio
bidirecional, Entrada de fonte de áudio externa, Line-out
-
-
bidirecional
-
Taxa máxima de fotogramas versus resolução
60@4MP, 120@2MP, 30@2MP
30@4MP, 30@2MP
30@4MP, 30@2MP
60@4MP, 120@2MP, 30@2MP
30@4MP, 30@2MP
Multi-Streaming
-
-
-
-
Três fluxos
Construido em Analítico
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, ALPR, Counting
ALPR
ALPR
ALPR, Counting
ALPR
Temperatura De Operação
-40ºC ~ 65ºC (-40ºF ~ 149ºF)
-
-
-40ºC ~ 65ºC (-40ºF ~ 149ºF)
-30ºC ~ 70ºC (-22ºF ~ 158ºF)
Caixa ambiental
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Anti-Corrosion
-
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Entrada/Saida Digital
2/2
1/1
1/1
2/2
1/1
Ambiente aplicação
Externo
Externo
Externo
Externo
Externo
Modelo
A412
A426
A432
A432-P1
Imagem do Produto
Tipo de Produto
Bullet Zoom
Bullet Zoom
Bullet Zoom
Vari-focal Bullet
Maxima Resolução
5MP
5MP
9MP
9MP
taxa de Zoom
4.4x
4.4x
3.6x
-
Sensor Size
1/2.7"
1/2.7"
1"
1"
Light Type
IR LED Adaptativo: 85m
IR LED Adaptativo: 85m
IR LED Adaptativo: 30m
IR LED Adaptativo: 30m
Wide Dynamic Range
Extremo (135 dB)
Extremo (135 dB)
-
-
Maximum Frame Rate
30fps
30fps
30fps
30fps
Áudio
bidirecional, Stereo Line-in, Line-out
bidirecional, Stereo Line-in, Line-out
-
-
Taxa máxima de fotogramas versus resolução
30@5MP, 30@2MP
30@5MP, 30@2MP
30@9MP, 30@8MP, 30@5MP, 30@4MP, 30@2MP
30@9MP, 30@8MP, 30@5MP, 30@4MP, 30@2MP
Multi-Streaming
Fluxos Quádruplos
Fluxos Quádruplos
Três fluxos
-
Construido em Analítico
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
ALPR
ALPR
Temperatura De Operação
-40ºC ~ 60ºC (-40ºF ~ 140ºF)
-40ºC ~ 60ºC (-40ºF ~ 140ºF)
-30ºC ~ 70ºC (-22ºF ~ 158ºF)
-
Caixa ambiental
Resistente a interperies (IP66)
Resistente a interperies (IP66), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP68), Embalagem de metal a prova de vandalismo (IK10)
Anti-Corrosion
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Conforme com a NDAA
Sim
Sim
-
-
Entrada/Saida Digital
1/2
1/2
7/2
7/2
Ambiente aplicação
Externo
Externo
Externo
Externo

Dome

Visualização em Matriz

Tipo de Produto
Dome Zoom
Ambiente aplicação
Externo
Lente
Ampliação
taxa de Zoom
4.4x
5MP
A826
A828

Comparison

Modelo
A826
A828
Imagem do Produto
Tipo de Produto
Dome Zoom Exterior
Dome Zoom Exterior
Maxima Resolução
5MP
5MP
taxa de Zoom
4.4x
4.4x
Sensor Size
1/2.7"
1/2.7"
Light Type
IR LED Adaptativo: 85m
IR LED Adaptativo: 85m
Wide Dynamic Range
Extremo (135 dB)
Extremo (135 dB)
Maximum Frame Rate
30fps
30fps
Áudio
bidirecional, Entrada de fonte de áudio externa, Line-out
bidirecional, Entrada de fonte de áudio externa, Line-out
Taxa máxima de fotogramas versus resolução
30@5MP, 30@2MP
30@5MP, 30@2MP
Multi-Streaming
Fluxos Quádruplos
Fluxos Quádruplos
Construido em Analítico
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
Temperatura De Operação
-55ºC ~55ºC (-67ºF ~ 131ºF) heater on (Limited zoom functionality at -55°C and may require manual focus)
-55ºC ~55ºC (-67ºF ~ 131ºF) heater on (Limited zoom functionality at -55°C and may require manual focus)
Caixa ambiental
Resistente a interperies (IP66), Prova de vandalismo (IK10)
Resistente a interperies (IP66), Prova de vandalismo (IK10)
Anti-Corrosion
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Conforme com a NDAA
Sim
Sim
Entrada/Saida Digital
1/1
1/1
Ambiente aplicação
Externo
Externo

PTZ

Visualização em Matriz

Tipo de Produto
PTZ
Ambiente aplicação
Externo
Lente
Ampliação
taxa de Zoom
22x 30x 36x 40x
2MP
A956
5MP
A957
8MP
A952
A981
A962

Comparison

Modelo
A956
A957
A952
A981
A962
Imagem do Produto
Tipo de Produto
PTZ Exterior
PTZ Exterior
PTZ Exterior
PTZ Exterior
PTZ Exterior
Maxima Resolução
2MP
5MP
8MP
8MP
8MP
taxa de Zoom
40x
40x
22x
30x
36x
Sensor Size
1/2.7"
1/2.7"
1/1.8"
1/2.7"
1/1.8"
Light Type
IR LED Adaptativo: 250m
IR LED Adaptativo: 250m
IR LED Adaptativo: 250m
IR LED Adaptativo: 250m
IR LED Adaptativo: 300m
Wide Dynamic Range
Extremo (150 dB)
Extremo (150 dB)
Extremo (150 dB)
Extremo (150 dB)
Extremo (140 dB)
LightGuard
-
-
-
-
Sim
Maximum Frame Rate
60fps
60fps
30fps
30fps
120fps
Áudio
bidirecional, Entrada de fonte de áudio externa, Line-out
bidirecional, Entrada de fonte de áudio externa, Line-out
bidirecional, Entrada de fonte de áudio externa, Line-out
bidirecional, Entrada de fonte de áudio externa, Line-out
bidirecional, Entrada de fonte de áudio externa, Line-out
Taxa máxima de fotogramas versus resolução
60@2MP
30@5MP, 60@2MP
30@8MP, 30@6MP, 30@2MP
30@8MP, 30@6MP, 30@2MP
60@8MP, 60@5MP, 60@4MP, 60@3MP, 120@2MP, 30@2MP
Multi-Streaming
Fluxos Quádruplos
Fluxos Quádruplos
Fluxos Quádruplos
Fluxos Quádruplos
Três fluxos
Construido em Analítico
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
Smart Motion Detection, Smart Intrusion Protection, Object Metadata, Face Detection, Face Recognition, ALPR, Counting, Rastreamento Automático
ALPR, Rastreamento Automático
Temperatura De Operação
-40ºC ~55ºC (-40ºF ~ 131ºF) heater on
-40ºC ~50ºC (-40ºF ~ 122ºF) heater on
-40ºC ~50ºC (-40ºF ~ 122ºF) heater on
-40ºC ~50ºC (-40ºF ~ 122ºF) heater on
-40ºC ~ 70ºC (-40ºF ~ 158ºF)
Caixa ambiental
Resistente a interperies (IP66), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP66), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP66), Embalagem de metal a prova de vandalismo (IK10)
Resistente a interperies (IP66), Embalagem de metal a prova de vandalismo (IK10)
Prova de vandalismo (IK10), Resistente a interperies (IP68), NEMA 4X
Anti-Corrosion
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Optional (approximately 2-3 years)
Sim (approximately 10 years), Optional (approximately 2-3 years)
Conforme com a NDAA
Sim
Sim
Sim
Sim
-
Entrada/Saida Digital
2/4
2/4
2/4
2/4
2/7
Ambiente aplicação
Externo
Externo
Externo
Externo
Externo

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