barrel distortion


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Related to barrel distortion: Pincushion distortion

barrel distortion

irregular image produced when peripheral magnification is greater than axial magnification. See: Petzval surface.

barrel distortion

outward bowing of gridded straight lines in an image, resulting from lens distortion such that the lateral magnification at the center of the image is greater than that at the edges.

bar·rel dis·tor·tion

(bar'ĕl dis-tōr'shŭn)
Irregular image produced when peripheral magnification is greater than axial magnification.
See: Petzval surface
References in periodicals archive ?
Zoom lenses tend to produce barrel distortion at wide-angle positions and pincushion distortion at telephoto positions (due to slight changes in distortion characteristics during zooming).
We noted no astigmatism, curvature of field, barrel distortion, or rolling distortion.
We detected no spherical aberration, astigmatism, barrel distortion, or rolling distortion during testing.
The patented technology corrects barrel distortion and improves image resolution over typical lenses.
An advanced memory architecture enables simultaneous horizontal and vertical keystone correction and ARK Engine[TM] technology supports pin cushion correction and barrel distortion correction at all resolutions.
Focusing the scopes on the distant brick wall with its very distinct vertical and horizontal lines, we checked for pincushion distortion (lines bowing in) and barrel distortion (lines bowing out).
Theia's cutting-edge, patented technology - Linear Optical Technology - makes it possible to design ultra wide lenses with optical barrel distortion correction.
ARK Engine technology also supports pin cushion correction and barrel distortion correction at all resolutions.
It eliminates barrel distortion, a common phenomenon which plagues other digital cameras, causing the center of an image to appear wider in the middle.
Additionally, the same IC can concurrently correct for color and brightness uniformity variations on displays and correct for distortions and aberrations of lenses, including pincushion and barrel distortions as well as for chromatic aberration and lateral color separation.