Documentation for Face Intellect 8.0-8.1. Documentation for other versions of Intellect is available too.

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When a face detection tool is used, the following requirements must be met:

  1. Minimum linear dimensions of a face that must be detected are 24 pixels.
  2. Maximum speed of a face that must be detected shouldn't be greater than a half of linear dimensions in pixels per frame (i.e. face overlapping between two adjacent frames must not be less than half-width and half-height of a face).
  3. A detection tool needs 8 frames to confirm face detection. Otherwise, a face detection message won’t be sent.
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