| Attribute |
Vehicle or LP parameter: brand, model, color, LP number, etc. |
| Base64 |
A standard for encoding binary data (in the context of the CARS API – images) using 64 ASCII characters. |
| Best shot |
The best shot of an object (car, smoke/fire, or animal). |
| Bounding box (BBox) |
A rectangle that bounds the image space containing a detected object (vehicle, LP, pedestrian, animal). |
| CARS Analytics |
Subsystem for collecting, storing, and displaying the results of the CARS API and CARS Stream operations via a web interface. |
| CARS API |
Subsystem for detection and recognition of vehicle and LP attributes on images in real-time. |
| CARS Stream |
Subsystem for detecting and tracking vehicles, LPs, pedestrians, and animals in the video stream and determining the best frames. |
| Classifier |
An object in the CARS API subsystem that recognizes one of the attributes of a vehicle or LP. |
| Crop |
An object cut from a fullframe (car, smoke/fire, or animal). |
| Detection |
The process of identifying areas of the image containing vehicles or LPs. |
| Detector |
An algorithm for identifying areas in the image that contain vehicles or LPs. |
| Exchangeable Image File Format (EXIF) |
A standard that allows users to add additional information (metadata) to images, commenting on this file, describing the conditions and methods of obtaining it, authorship, etc. |
| False Positive Detection |
A detection result where an object that is not a vehicle or LP is incorrectly identified as a vehicle or LP. |
| False Negative Detection |
A detection result where a vehicle or LP is not detected or identified as a vehicle or LP. |
| Full frame |
Full frame from the camera. |
| Inference |
Image processing by the neural network and result generation. For detectors, for example, results are generated: the coordinates of the detections and the probabilities that the detection corresponds to an object of interest (vehicle, license plate, smoke, fire, pedestrian, or animal). |
| JavaScript Object Notation (JSON) |
A text-based data exchange format based on JavaScript. |
| License Plate (LP) |
An individual alphanumeric designation assigned to a vehicle by a registration authority. |
| LUNA CARS |
A system designed for detection, tracking, and recognition of vehicle and LP attributes. The system consists of three subsystems: CARS Analytics, CARS API, and CARS Stream. |
| Nginx |
A load balancer that distributes requests and responses between running instances of the CARS API and external systems. |
| Non-Maximum Suppression (NMS) |
An algorithm for determining the boundaries of objects in an image. |
| Object |
An item of interest for the system within the processes of detection, re-detection, and tracking: vehicle, license plate, smoke, fire, pedestrian, or animal. |
| Redetection |
The process of re-identifying areas of an image containing vehicles or LPs. |
| Track |
Information about the position of a vehicle and LP across a sequence of frames. |
| TrackEnd |
Event about the end of tracking an object (car, smoke/fire, or animal). |
| Tracking |
The process of obtaining information about the position of a vehicle or LP across a sequence of frames. |
| Vehicle |
A mechanical device used for transporting people and/or goods, which requires a special right to operate. |