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 ?
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).