barrel distortion

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Related to Image distortion: 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 ?
High-precision aspherical lens reduces image distortion all the way to the lens periphery,
The proposed method conducts restricted pixel compensation to prevent image distortion, which is exposed by existing pixel compensation techniques [2-8].
Also, by making use of shape reconstruction and 3D projection algorithms, MistForm adjusts its shape to better support user interaction, all while removing any image distortion caused by projecting on moving, curved fog surfaces .
LEDs use very little energy, so battery life is long, but bouncing the light off a lens requires curved or angled glass, which generates some image distortion.
Moreover, a recent scheme based on image distortion analysis (IDA) [12] for face liveness detection was proposed in which four different features were extracted i.
The Helix will automatically adjust photos when printing on tapered cylinders and remember the settings to eliminate image distortion or the need to manually edit the picture.
Both clinical and experimental studies have shown that metallic orthodontic appliances may produce image distortion on MRI scans of head and neck.
This technology also minimizes image distortion on the display screen.
A 105-degree angle of view improves observation of distal areas while the aspheric lens prevents image distortion and works with the auto-focus technology to provide sharp images.
In addition, the 5MP front-facing camera adopts the industry-leading 5P non-spherical lens for higher definition and less image distortion and allows for panoramic selfies to be taken.
That's why body image distortion represents another key factor of the work we must do with our patients.
IPS (in-plane switching) technology eliminates image distortion and color shifting to ensure true, lifelike color from virtually any viewing angle.