Canon EOS-1D X Mark III Af Setting Manualbook page 6

Face Detection and
Head Detection AF
By using deep learning technology, accurate
tracking is achieved with head detection
even when a face cannot be detected
In previous cameras when [Face Priority] was selected with
an auto selection AF mode (Zone AF, Large Zone AF, or
Auto Selection AF), the AF point was automatically selected
by adding information for the color of the human face
and subject to the AF information. With the EOS-1D X
Mark III AF system, the tracking function based on subject
detection has been improved. By analyzing a database of
sports photographs using deep learning technology, a new
head detection algorithm was created. Accurate face/head
tracking is now possible even when part of the face cannot
be detected (such as if the face is hidden by movement of
subject, if the face is hidden by sunglasses, mask, hair, or
if the face is in a dark area). Face detection is performed
at the same time, and even if the face is hidden, it switches
smoothly so that accurate focusing is possible. Face
detection and head detection can be used in the same
way for viewfinder shooting and Live View shooting, plus
with Live View shooting, you can also use Eye Detection
AF.
If you want to use Head
Detection AF, setting
[Subject tracking
settings] to [AF priority
(People): Enable] is
recommended.
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