Abstract: A riving assistance apparatus includes a sound wave control unit acquiring information of a reflected wave from a distance measuring unit, the distance measuring unit transmitting a sound wave towards a travelling direction of a vehicle and receiving the reflected wave of the sound wave reflected from an object, an information acquisition unit acquiring temperature information in surroundings of the vehicle, and a determination unit determining that a road surface in the travelling direction of the vehicle is a frozen road surface by determining that the distance measuring unit receives the reflected wave including a signal strength equal to or greater than a predetermined value from a predetermined distance or more, based on the information of the reflected wave in a state where a temperature based on the temperature information is smaller than a predetermined temperature.

Abstract: A secondary curve, the ends of which coincide with the inner corner and the outer corner of the eye, is determined successively, and the total of the edge values of the pixels overlapping the secondary curve is calculated as an evaluation value. Next, a characteristic curve is generated on the basis of data made up of the calculated evaluation value and the Y-coordinate of the intersection between the secondary curve and a straight line passing through the center of a line segment whose ends coincide with the inner corner and the outer corner of the eye. Then, the reference positions for the upper eyelid and the lower eyelid of the eye are set on the basis of the result of an attempt to detect a pixel group occurring because of the red-eye effect in a search area defined on the basis of peaks in the characteristic curve.

Abstract: A secondary curve, the ends of which coincide with the inner corner and the outer corner of the eye, is determined successively, and the total of the edge values of the pixels overlapping the secondary curve is calculated as an evaluation value. Next, a characteristic curve is generated on the basis of data made up of the calculated evaluation value and the Y-coordinate of the intersection between the secondary curve and a straight line passing through the center of a line segment whose ends coincide with the inner corner and the outer corner of the eye. Then, the reference positions for the upper eyelid and the lower eyelid of the eye are set on the basis of the result of an attempt to detect a pixel group occurring because of the red-eye effect in a search area defined on the basis of peaks in the characteristic curve.