Face

The Face algorithm performs real-time detection, biometric identification and tracking of all detected faces.

Vehicle-Human

The Vehicle-Human (VH) algorithm performs real-time vehicle or human detection, classification and movement tracking.

Automatic license plate recognition

The ALPR algorithm from the SentiVeillance component performs real-time vehicle license plate (number plate) detection and recognition.

Automatic license plate recognition algorithm

Reliable detection

License plates can be separated even in complex images, which contain objects like signboards or traffic signs. See the reliability tests below.

Traffic data processing

SentiVeillance algorithms can simultaneously read vehicle license plates from multiple moving vehicles in road traffic.

Tolerance to camera position

Depending on camera resolution, the ALPR algorithm can read license plates from longer distance and higher angle.

Combinations with other algorithms

VH modality can be used together with the ALPR modality, especially in these cases:

  • Vehicle data detection. In certain scenarios a vehicle type (i.e. truck or bus) has to be detected before running the license plate recognition algorithm. Also, vehicle movement direction, color or model can be needed as a filter before running license plate recognition.
  • Preventing cheating with replaced license plates. Integrators can make software logic which checks if recognized license plate corresponds other registration data, like vehicle color or make and model, and not being spoofed or moved from another vehicle.

Programming samples from the SDK show how to use this modality.

A license for using the SentiVeillance ALPR modality on one video stream is included with SentiVeillance SDK. Additional licenses or upgrade for the number of processed video streams in the existing licenses can be purchased any time by SentiVeillance SDK customers.

We present the testing results to show SentiVeillance ALPR algorithm reliability on the car images taken in different conditions. Images from the platesmania.com website were used for testing. The images were grouped into five datasets.

Two experiments were performed with images from each dataset:

  • Experiment 1 – the OCR was set to interpret 1 (one) as I (letter I) and 0 (zero) as O (letter O).
  • Experiment 2 – the OCR had no specific rules on letters and numbers interpreteation.
SentiVeillance ALPR algorithm reliability testing results
Dataset 1Dataset 2Dataset 3Dataset 4Dataset 5
Image count105241743098768147
License plate width (pixels)less than 100100-199200-299300-399more than 400
Experiment 1 recognition ratio90.58 %97.50 %99.48 %99.86 %100 %
Experiment 2 recognition ratio87.54 %94.89 %97.44 %98.95 %98.63 %

Supported countries

List of 84 countries supported by SentiVeillance
AND AND - AndorraBOL BOL - BoliviaEGY EGY - EgyptIND IND - IndiaMAR MAR - MoroccoOMN OMN - OmanSVK SVK - Slovakia
ARE ARE - United Arab EmiratesBRA BRA - BrazilESP ESP - SpainIRL IRL - IrelandMCO MCO - MonacoPER PER - PeruSVN SVN - Slovenia
ARG ARG - ArgentinaCAN CAN - CanadaEST EST - EstoniaITA ITA - ItalyMDA MDA - MoldovaPOL POL - PolandSWE SWE - Sweden
ARM ARM - ArmeniaCHE CHE - SwitzerlandFIN FIN - FinlandJOR JOR - JordanMLI MLI - MaliPRT PRT - PortugalTGO TGO - Togo
AUS AUS - AustraliaCHL CHL - ChileFRA FRA - FranceKAZ KAZ - KazakhstanMLT MLT - MaltaPRY PRY - ParaguayTJK TJK - Tajikistan
AUT AUT - AustriaCIV CIV - Ivory CoastGHA GHA - GhanaKGZ KGZ - KyrgyzstanMNE MNE - MontenegroQAT QAT - QatarTUR TUR - Turkey
BEL BEL - BelgiumCOL COL - ColombiaGBR GBR - Great BritainKWT KWT - KuwaitMEX MEX - MexicoROU ROU - RomaniaUKR UKR - Ukraine
BEN BEN - BeninCYP CYP - CyprusGEO GEO - GeorgiaLIE LIE - LiechtensteinMYS MYS - MalaysiaRUS RUS - RussiaURY URY - Uruguay
BFA BFA - Burkina FasoCZE CZE - CzechGRC GRC - GreeceLKA LKA - Sri LankaNGA NGA - NigeriaSAU SAU - Saudi ArabiaUSA USA - United States
BGR BGR - BulgariaDEU DEU - GermanyHRV HRV - CroatiaLTU LTU - LithuaniaNLD NLD - NetherlandsSGP SGP - SingaporeUZB UZB - Uzbekistan
BHR BHR - BahrainDNK DNK - DenmarkHUN HUN - HungaryLUX LUX - LuxembourgNOR NOR - NorwaySLV SLV - El SalvadorVEN VEN - Venezuela
BLR BLR - BelarusECU ECU - EcuadorIDN IDN - IndonesiaLVA LVA - LatviaNZL NZL - New ZealandSRB SRB - SerbiaVNM VNM - Vietnam

Check out other SentiVeillance algorithms