If you did not choose to run head detection during your file upload, you can do so from the File Manager Page. Click on the file name on the homepage to open it.
Click Detect Heads on the Video tab. The head detection cognitive engine will commence processing. You can perform other work on the file while waiting for head detection to finish, i.e. add user-defined regions, run audio transcription, etc. or return to the homepage to work on a different file.
Note: Processing times vary based on the size of the file. Cognitive engine processing occurs in the cloud and does not require the browser to be open.
The processing status of the file's head detection can be viewed in the Notification Center.