Definitions

Detection - A single slice of a track at a point in time. Unusually the point of time is a frame of a video or a sequence of images.

Features - Bounding Rectangle, Head/Tail or other visible elements of a detection.

Track - A collection of detections spanned over multiple frames in a video or image sequence. Tracks include a start and end time and can have periods in which no detections exist.

Types - a set of tracks that share specific display properties including color, line thickness, opacity. Frame - a single image or point in time for a video or image sequence

KeyFrame - While using interpolation for tracks these are indicated as a locked position. Interpolation is calculated linearly between keyframes to draw the bounding rects.

Interpolation - linearly moving the bounding rect of a detection over time between two keyframes.