APPARATUS FOR ESTIMATING BEHAVIOR OF VEHICLE OCCUPANT AND METHOD FOR THE SAME

To robustly estimate three-dimensional behaviors of an occupant by fusing, through a particle filter, information obtained through vehicle indoor cameras and through vehicle internal information sensors, an occupant behavior estimation system includes: a camera configured to obtain images of the at least one occupant within the vehicle; sensors configured to obtain information on the vehicle; an image processing device configured to process images obtained from the camera and to obtain key point information of the at least one occupant and object tracking information that is provided by tracking the at least one occupant; and a vehicle safety controller configured to estimate the behaviors of the occupant by using a particle filter based on the information on the vehicle obtained through the sensors, the key point information and the object tracking information, which are obtained from the image processing device.