| Attributes | Basic attributes and descriptor. | 
| Basic attributes | Age, gender, and ethnicity. | 
| Body parameters | Body characteristics (presence of backpack, headwear, color of clothing, etc.) determined on the source image during detection. | 
| Bounding box | Rectangle that bounds the image space with the detected face or body. | 
| Bucket | Logical entity used to store objects. | 
| Cooperative mode | Process of obtaining source photo images of faces or boies from videostream with conscious person interaction with the camera. | 
| Descriptor | Data set in closed, binary format prepared by recognition system based on the characteristic being analyzed. | 
| Detector | Neural network used to detect either faces or bodies, or both faces and bodies in the source image. | 
| Estimator | Neural network used to estimate a certain parameter of the face or body in the source image. | 
| Face | Changeable objects that include information about a human face. | 
| Face parameters | Facial characteristics (emotions, mouth parameters, head position, etc.) determined on the source image during detection. | 
| Image parameters | Image characteristics (width and height, aspect ratio, size, etc.) determined on the source image during detection. | 
| Landmarks | Reference points on the face or body used by recognition algorithms to localize the face or body. | 
| Liveness | Software method that enables you to confirm whether a person in one or more images is "real" or a fraudster using a fake ID (printed face photo, video, paper or 3D mask). | 
| Matching | The operation of matching descriptors stored in the database. | 
| Occlusion | State of an object (eye, mouth) when it is hidden by any other object. | 
| Non-cooperative mode | Process of obtaining the source photo images of faces or bodies from videostream, while a person may not interact with the camera. | 
| Samples, Warps | Normalized (centered and cropped) image obtained after face or body detection, prior to descriptor extraction. | 
| Verification | Comparison of two photo images of a face in order to determine belonging to the same face. |