| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a face feature point detection device and a sleepiness detection device facilitated in practical use capable of grasping an expression with high accuracy. <P>SOLUTION: By imaging the face image of a driver 3 by an imaging device 10, a sleepiness detection device 20 first generates a 2D reference face and a 2D template in an individual information model for use to obtain feature points on the face of the driver 3 (S1). Next, feature points at an awakening state are obtained (S2), and a sleepiness level is estimated by detecting the feature points at timing to detect the sleepiness (S3). According to the sleepiness level, a signal is output to operate a nap prevention device (S4). The acquisition of the feature points is performed by imaging the face image of the driver 3 by the imaging device 10, and by fitting the image concerned by deforming the 2D reference face and the 2D template so as to obtain two-dimensional coordinates of the feature points from the imaged image. Next, three-dimensional coordinates are obtained by be fir to a 3D reference face which is a common model. <P>COPYRIGHT: (C)2011,JPO&INPIT |
