US Patent 10102419 Progressive radar assisted facial recognition

System and techniques for progressive radar assisted facial recognition are described herein. An image may be obtained from a camera of the security device. A facial target in the image may be identified. The facial target may include a non-empty set of positive facial indicators and also be missing a non-empty set of facial indicators used for identification. In response to identifying the facial target, a power level of a millimeter wave radar may be increased at least until a threshold number of members of the set of facial indicators are observed. Then, the members of the set of facial indicators that are observed may be combined with the set of positive indicators of the face to create a composite image.