Vehicle Model Identification

This analysis task identifies the manufacturer and model of vehicles detected during number plate recognition. The vehicles are compared with known vehicles stored in a database.

Before configuring vehicle model identification, you must train Media Server to recognize vehicles. For information about training Media Server, refer to the Media Server Administration Guide.

This section describes the parameters that you can use to configure vehicle model identification.

Configuration Parameter Description
ColorRegion Specifies the region to output to the ColorRegionWithSource output track, so that you can configure an analysis task to identify the color of the vehicle.
Database The name of the database that contains known vehicle models.
DetectEveryFrame Specifies whether to use every frame in which a vehicle is present to improve the accuracy of detection.
Input The name of the track to analyze.
MatchQuality The minimum confidence that must be achieved to include a vehicle identification result in the output.
MinGrillePercentage The minimum amount of the vehicle grille that must be visible in the image to attempt vehicle identification.
Perspective Specifies whether source images are affected by perspective transformations.
SyncDatabase Specifies whether to synchronize with the training database before beginning the analysis task.
Type The analysis engine to use. Set this parameter to VehicleModel.

Output Tracks

Output track Type Description Output1This column indicates whether the information contained in the track is included by default in the output created by an output task (when you don't set the Input parameter for the output task).
ColorRegionWithSource VehicleColorRegionAndImage Describes a region that is expected to contain a sample of the vehicle color. The track also contains the source image. You can use this track with another engine to determine the color of the identified vehicle. No
Data VehicleModelResult Contains a record for each vehicle. If the same vehicle appears in consecutive frames, there will be a record for each frame. No
DataWithSource VehicleModelResultAndImage Contains a record for each vehicle. If the same vehicle appears in consecutive frames, there will be a record for each frame. Each record includes the source image. No
Result VehicleModelResult Contains a record for each result. If the same vehicle appears in consecutive frames, only one result is produced. Yes
ResultWithSource VehicleModelResultAndImage Contains a record for each result. If the same vehicle appears in consecutive frames, only one result is produced. Each record also contains the best source image. No

VehicleColorRegionAndImage

Field name Type Description
id UUIDData A universally unique identifier to identify the result.
colorregion PolygonData Describes a region in the source image that is expected to contain a sample of the vehicle color.
image ImageData The source image.
colorregionpercentage Integer The percentage of the color region contained within the source image. It is possible for the color region to be outside the source image, for example when only part of the vehicle appears in the image.

VehicleModelResult

Field name Type Description
id UUIDData A universally unique identifier to identify the result.
grillepatch PolygonData Describes the region of the image that contains the vehicle grille.
identity IdentityData The identity of the vehicle in the database that matches the vehicle in the image. If the vehicle was not recognized, this field is empty.
grillepercentage Integer The percentage of the vehicle grille that was visible in the source image.
nondetectinfo String If the vehicle could not be identified, this field explains why.

VehicleModelResultAndImage

Field name Type Description
id UUIDData A universally unique identifier to identify the result.
grillepatch PolygonData Describes the region of the image that contains the vehicle grille.
identity IdentityData The identity of the vehicle in the database that matches the vehicle in the image. If the vehicle was not recognized, this field is empty.
image ImageData The source image.
grillepercentage Integer The percentage of the vehicle grille that was visible in the source image.
nondetectinfo String If the vehicle could not be identified, this field explains why.

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