Face Recognition Tab¶

Face recognition allows Fast Video Cataloger to automatically detect faces in video thumbnails and match them to actors in your catalog. Before an actor can be recognized you need to learn their face: open the Edit Actor dialog, select one or more companion images that clearly show the actor's face, and click Learn Face. The quality and variety of these photos largely determine how well recognition works -- see Face Recognition for details and tips.

Face Recognition: Auto-detect actors during indexing -- When checked, faces are automatically detected and matched to actors during video indexing. Off by default.

Min frame confidence -- Minimum confidence for a match in a single frame to count. Faces matched with lower confidence in individual frames are ignored. Value between 0.0 and 1.0, default 0.60.

Avg confidence threshold -- Average confidence of the best matching frames required to tag an actor. Higher values reduce false positives. Value between 0.0 and 1.0, default 0.62.

Min frames required -- An actor must be matched in at least this many frames to be tagged. Higher values reduce false positives. Value between 1 and 100, default 2.

Frame skip -- Process every Nth thumbnail. Set to 1 to process every thumbnail; 2 processes every second thumbnail, and so on. Higher values are faster but can miss actors who appear only briefly. Value between 1 and 100, default 1.

Face detector: Use CNN (more accurate, slower) -- The fast HOG (Histogram of Oriented Gradients) detector always runs. When this box is checked, the CNN (Convolutional Neural Network) detector also runs on every frame and the results of the two are combined. CNN finds faces at angles and in difficult lighting that HOG misses, but detection is much slower. Off by default. See Detection Methods.

Parallel instances -- Number of face recognition instances that run in parallel. Higher values use more memory but process faster. Each instance uses approximately 100 MB of RAM. Value between 0 and 64, default 0, which means auto: one instance per CPU core.