. "transforming" . . "optical distortion" . "Distortion_(optics)#Radial_distortion" . "tangential distortion" . . "optical distortions" . "cushion" . "image distortions" . "Distortion (optics)" . "geometric distortions" . "Distortion (optics)#Software correction" . . . . . "pin-cushioned" . "visual distortion" . "Distortion (optics)" . "geometric distortion" . "distorted" . "distortion" . "Distortion" . "Lens distortion" . "distortions" . "algorithms" . . "image distortion" . . . "barrel distortion" . "distortion (optics)" . "lens distortion" . . . "radial distortions" . . . . "distortion correction" . .