The same high quality Face Detection technology used in Canon digital cameras is available in the VIXIA HF M31 high definition camcorder. Up to 35 faces can be tracked automatically, ensuring razor-sharp focus and natural, accurate exposure. Of the faces tracked, 9 detection frames can be displayed at one time.
The system is in fact so smart that it will recognize faces turned downwards or sideways. In addition, a specific face may be selected as the main subject for continuous tracking. This feature can be used to search for clips featuring that specific subject's face. In search and playback, use of the Face Index will display frames with the chosen face as a thumbnail in each shot in which it appears. The selected face can be linked as a timeline to further identify footage containing that subject.