US 9,813,619 B2
Apparatus and method for correcting image distortion of a camera for vehicle
Jun Sik An, Gyeonggi-do (KR); Joong Ryoul Lee, Incheon (KR); Kap Je Sung, Gyeonggi-do (KR); and Eu Gene Chang, Gyeonggi-do (KR)
Assigned to Hyundai Motor Company, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR)
Filed on Dec. 9, 2014, as Appl. No. 14/564,751.
Claims priority of application No. 10-2014-0094138 (KR), filed on Jul. 24, 2014.
Prior Publication US 2016/0027158 A1, Jan. 28, 2016
Int. Cl. H04N 5/232 (2006.01); G06T 7/80 (2017.01)
CPC H04N 5/23238 (2013.01) [G06T 7/80 (2017.01); G06T 2207/30252 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for correcting image distortion of a camera in a vehicle, comprising:
a camera mounted in the vehicle;
a controller configured to:
extract camera characteristic parameters of the camera based on a correction coefficient for correcting image distortion;
calculate a tilt angle of a virtual camera corresponding to the camera in one or more photographing regions using the camera characteristic parameters;
calculate a yaw angle of the virtual camera in each of the one or more photographing regions;
create a correction model by applying the calculated tilt angle and calculated the yaw angle of the virtual camera in each of the one or more photographing regions;
view-transform a photographed image photographed by the camera by adjusting the tilt angle and the yaw angle of the virtual camera based on the created correction model to secure a view region of the photographed image and create a corrected image depending on the view transformation; and
display the corrected image on a display disposed within the vehicle.