User photos are not imported from Active Directory

I have configured the User Profile Service Application to import user photographs from Active Directory (we already have these displayed in Outlook and Lync).  However, even though I have configured the Picture property to map to the thumbnailPhoto attribute and run a full synchronization the pictures still do not appear.

The answer to this problem is the Update-SPProfilePhotoStore cmdlet:

Update-SPProfilePhotoStore -CreateThumbnailsForImportedPhotos 1 -MySiteHostLocation http://mysite.mydomain.local

Also, if you are importing pictures from a different domain then you will likely need to set the CrossDomainPhotosEnabled property of the web application to true:

$wa = Get-SPWebApplication http://intranet.mydomain.local
$wa.CrossDomainPhotosEnabled = $true
$wa.Update()