JP2012022579A5

JP2012022579A5 -

Info

Publication number: JP2012022579A5
Application number: JP2010161045A
Authority: JP
Filing date: 2010-07-15
Publication date: 2013-06-20

Claims

An acquisition unit that acquires a plurality of image data obtained by photographing a driver's face driving a moving body a plurality of times at different times from a predetermined direction;
Based on each of the plurality of image data acquired by the acquisition unit, the distance between the first part and the second part of the driver's face, and the distance between the first part and the third part A calculation unit that calculates a feature amount for each image from the ratio of
A determination unit that determines a reference value corresponding to the driver based on the commonality of the plurality of feature amounts calculated by the calculation unit;
Before Kitoku symptoms amount calculated by the calculation unit based on the image data acquired by the acquiring unit, based on said reference value corresponding to the driver, the vertical direction of the face of the driver A face direction detecting device comprising: a detecting unit for detecting.

Before SL determination unit, based on the distribution of the feature amount, the face direction detecting apparatus according to claim 1, characterized in that to determine the reference value.

Before SL determining unit, the face direction detecting apparatus according to claim 1, characterized in that to determine the convergence values when the feature amount has converged as the reference value.

The face direction detection device according to claim 1, wherein the first part is an eye, the second part is a nose, and the third part is a mouth .

An acquisition procedure for acquiring a plurality of image data obtained by photographing a driver's face driving a moving body a plurality of times at different times from a predetermined direction;
Based on each of the plurality of image data acquired in the acquisition procedure, the distance between the first part and the second part of the driver's face, and the distance between the first part and the third part. A calculation procedure for calculating the feature amount for each image from the ratio of
A determination procedure for determining a reference value corresponding to the driver based on the commonality of the plurality of feature amounts calculated by the calculation procedure;
The vertical direction of the driver's face is detected based on the feature amount calculated in the calculation procedure based on the image data acquired in the acquisition procedure and the reference value corresponding to the driver. A face direction detection program which causes a computer to execute a detection procedure.

Computer
Acquire a plurality of image data obtained by photographing a driver's face driving a moving body multiple times at different times from a predetermined direction,
Based on each of the acquired plurality of image data, from the ratio of the distance between the first part and the second part of the driver's face and the distance between the first part and the third part Calculate feature values for each image,
A reference value corresponding to the driver is determined based on the commonality of the calculated feature quantities,
When detecting the vertical direction of the driver's face, based on the feature amount calculated based on the image data acquired at the time of detection and the reference value corresponding to the driver, A method for detecting a face direction, characterized by executing processing for detecting a vertical direction of a driver's face.