| Aspect angle |
Head rotation degree (in degrees) on each of the three axes (up/down tilt relative to the horizontal axis; left/right tilt, relative to the vertical axis; a rotation about the vertical axis). |
| Bestshot |
Best shot is selected from all frames of the track. The main conditions for best shot selection are appropriate quality and the presence of a face with best aspect angle. Such conditions are set through FaceStream configuration. |
| Detection |
FaceStream entity that contains the coordinates of face or body and the estimated value of the object that determines the bestshot. |
| Descriptor |
A set of unique features received from the warp. A descriptor requires much less storage memory in comparison with the sample and is used for comparison of faces. |
| Event |
LUNA PLATFORM entity, which contains information (city, user data, track id, etc.) about one face and/or body. This information is transferred to the LUNA PLATFORM by the FaceStream application. For a complete list of the transferred information, see the OpenAPI LUNA PLATFORM documentation. |
| Normalized image, warp |
Images containing a face or body and corresponding to VisionLabs standard. Used when working with LUNA PLATFORM. |
| Portrait |
Image of face or body that has been transformed to a specific format. The portrait has two types - "warp" (the image is transformed into warp format), "gost" (detection is cut out from the source frame, considering indentation). |
| Track |
Information about object’s position (face of a person) in a sequence of frames. If the object leaves the frame zone, the track doesn’t discontinue right away. For some time, the system expects the object to return and if it does, the track continues. |
| Tracking |
Object (face) tracking function in the frame sequence. |