Tip #50Kinesense LE

How to detect faces and search by facial attributes

Find every face in a video and identify attributes such as age, gender and glasses, then review the results on the timeline and in the Grid tab.

Patricia McCabeSoftware Engineer

A film still with each detected face boxed in red.

Another big new feature that we’d added to 3.2 is Face Detection & Attribute Search. It’s similar to Face Recognition in set up, you need a 3rd party server to preform the detection and find the attributes, but its not about finding people in the database. Instead it finds any faces in the video and then identifies different attributes associated with that face, like age, gender and if they are wearing glasses.

Import

The analysis algorithm list with Face Detection & Attribute Search selected.

To import a video with face detection, select it from the list of algorithms in the import wizard.

The Face Analysis settings: scale factor, minimum size and advanced settings including the face server address.

Like face recognition, you can adjust the face analysis settings. To learn more about this, check out our face recognition import blog.

Review

The Review tab with detected faces boxed in red and red events on the timeline.

In the Review tab, every face Kinesense has detected will show up as red events on the timeline. A red box will surround the face and Unknown will be displayed on top, indicating that it is a face but it’s not associated with any face in the database. To see the results of the attribute search you’ll need to view the results in the Grid tab, which we’ll be getting into next week!

Format support

3000+ video formats

Anything playable in Windows Media Player, VLC or FFmpeg is supported, without the manufacturer's original player. Have a format that isn't listed? Our engineers have 17 years experience of dealing with difficult formats.