barrel distortion


Also found in: Medical, Acronyms, Encyclopedia.
Related to barrel distortion: Pincushion distortion

barrel distortion

n
(Photography) photog distortion of an image produced by an optical system that causes straight lines at image margins to bulge outwards
References in periodicals archive ?
Capable of performing all standard optical corrections such as keystone, pin-cushion and barrel distortion correction along with rotation of images, the platform also enables advanced features such as de-warp of fish-eye lenses, edge-blending of high definition video streams for two display devices (projectors / LCD panels), image stitching for two camera sensors in order to create higher resolution cameras, and color and brightness uniformity correction for image sensors, projectors and LCD Displays.
Photographer software removes the so-called barrel distortion caused by the camera lens, and improves the contrast and colors at the edge of the picture," said Arto Lehtonen, CEO at Open Bit.
Theia's patented Linear Optical Technology[R] optically corrects the barrel distortion typical of other wide lenses, keeping straight lines straight without the use of software, making it easier for systems operators to monitor the image without fatigue.
Distortion stretching the shape in the diagonal direction is called pincushion distortion, and that which compresses the shape in the diagonal direction is called barrel distortion.