barrel distortion


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

barrel distortion

See distortion.

barrel distortion

[′bar·əl dis′tȯr·shən]
(optics)
A defect in an optical system whereby lateral magnification decreases with object size; the image of a square then appears barrel-shaped.

barrel distortion

A screen distortion in which the sides bow out. Contrast with pincushioning.
References in periodicals archive ?
Their patented, award winning Linear Optical Technology[R] corrects barrel distortion and improves image resolution over typical lenses.
Any lens with focal length below 35mm would usually have barrel distortion, and it is noticeable even in some 35mm lenses, from wide point-of-views.
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.
Commonly encountered radial distortions, including pincushion and barrel distortion, are eliminated by automatic sensors for ceiling detection and keystone, enabling perfectly projected images even on imperfect surfaces.
We would strongly recommend not shooting things up close at this focal length as it would introduce quite a large amount of barrel distortion.
We also noted a slight amount of barrel distortion.
Macro shots revealed that the DMC-SZ7 lens has a barely noticeable barrel distortion, which is great
During testing I detected no spherical aberration, astigmatism, barrel distortion or rolling distortion.
Theia leveraged their patented Linear Optical Technology[TM] platform with all-optical barrel distortion correction to provide a nominal 110 degree horizontal field of view (HFOV) with a 1/3" sensor and up to 120 degrees HFOV with a 1/2.
If the top and bottom of the pole move toward the center, the scope has barrel distortion If the pole ends move away from the center it has pin cushion distortion.