barrel distortion

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Related to Image distortion: 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 ?
Subsequently, we performed restricted pixel compensation to minimize the image distortion, as explained in subsection 3.
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According to different factors which cause image distortion, we can use corresponding methods to correct distortions.
Dr John Morgan, a psychiatrist who specialises in eating disorders, who had seen Sarah regularly since 2010, told the inquest how she suffered from body image distortion.
It happened about four or five times for about two minutes at a time, which caused image distortion and affected the quality.
This minimizes scattering light loss and image distortion that result from a mismatch between the refraction index of the immersion medium and the sample.
Such stories should be documented in order for the image distortion that prevails to be countered.