face detection improve

Facedetection

asked 2016-08-08 00:15:44 -0600

aligoglos
46 ●1 ●7

first i want know how much face angles change, haarcascade can detect faces?(because that seems haarcascade is very sensitive to angle) i want real time detect faces to 20 degree maximum and if no faces found report this. i use camshift tracking to improve face detection but track face in every angle and degree and i don't know how can detect in tracking step angle is more than 20 degree? thanks of your helping.

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answered 2016-08-08 05:03:25 -0600

StevenPuttemans

20029 ●16 ●82 ●207 http://stevenputtemans...

Research has proven that a single cascade model is about [-15,+15] degrees robust in detecting objects that appear under different angles. With larger angles up to [-30,+30] degrees you need some luck, further than that it simply fails and you need a second model to cope with that.