Device and method for estimating head pose

摘要

Provided is a device and method for estimating a head pose which may obtain an excellent head pose recognition result free from the influence of an illumination change, the device including a head area extracting unit to extract a head area from an input depth image, a head pitch angle estimating unit to estimate a pitch angle of a head in the head area, a head yaw angle estimating unit to estimate a yaw angle of the head in the head area, and a head pose displaying unit to display a head pose based on the estimated pitch angle of the head and the estimated yaw angle of the head.

主权项

1. A device for estimating a head pose, the device comprising:
a processor configured to control one or more processor-executable units;
a head area extractor configured to extract a head area comprising a head from an input depth image, the head area extractor comprising:
a head detector configured to detect the head area from the input depth image based on a depth feature of the head; anda background remover configured to remove a background part from the detected head area based on a depth difference between the head and the background part; a head pitch angle estimator, comprising:
a pitch line extractor configured to extract a pitch line of the head;a filter configured to classify the pitch line into sections and to obtain a straight line in a section of the sections having a highest fitting probability;a pitch angle calculator configured to calculate a pitch angle of the head based on the straight line; a head yaw angle estimator configured to estimate a yaw angle of the head in the head area; and a head pose displayer configured to display a head pose based on the calculated pitch angle of the head and the estimated yaw angle of the head.