Apparatus for estimating behavior of vehicle occupant and method for the same

An occupant behavior estimation system that estimates behaviors of at least one occupant within a vehicle, the occupant behavior estimation system comprising:

• 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 the 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 each of the at least one 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 comprising information on the at least one occupant, which are obtained from the image processing device, and to control the vehicle based on the estimated behaviors of each of the at least one occupant,
• wherein the vehicle safety controller is further configured to:
• determine whether a new occupant is detected based on an existing occupant tracked by the particle filter, and
• create a particle filter corresponding to the new occupant in response to determining that the new occupant is detected.