(n.) A small cushion, in which pins may be stuck for use.
Example Sentences:
(1) Contour positions are corrected for pincushion distortion.
(2) Previously reported and novel correction techniques were used to reduce veiling glare, pincushion distortion, dc bias, and residual shading effects.
(3) The pincushion distortion can be "corrected" (reducing displacements from 5 to 1-2 mm) by calculations based on modeling the distortion as a fourth order two-dimensional polynomial.
(4) 7) conglomerated into pincushion-like formations becoming increasingly denser and more compact.
(5) While the standard design often results in tissue protrusions or pincushioning, improvements in the design are outlined herein to achieve the best results for defects on the nose.
(6) No more 'pincushioning' - if you worried Cinema screens are often curved due to the way the picture is projected onto the screen.
(7) The pincushion distortion can be "corrected" (reducing displacements from 2-3 mm to 1 mm) by calculations based on modeling the distortion as a fourth order 2D polynomial.
(8) If necessary, these errors in position can be assessed by means of two phantoms placed within the stereotactic guidance system--a "2D-phantom" displaying "pincushion" distortion in the image, and a "3D-phantom" displaying displacement, warp, and tilt of the image plane itself.
(9) The illusion generated by a "pincushion grid" is not predicted from the two-dimensional Fourier transform of the grid.
(10) The picture will seem to warp inwards - a distortion called the pincushion effect.
(11) Magnification errors can be evaluated easily but the distortion (due to pincushion effect) are more difficult to measure.
(12) We spent a small fortune on three stabs at fertility treatment at a clinic in Cape Town, but that produced nothing other than a suntan and buttocks like pincushions after daily injections of hormones.
(13) These errors in position can be assessed by means of two phantoms placed within the stereotactic guidance system--a "two-dimensional phantom" displaying "pincushion" distortion in the image (i.e., x, y) plane, and the "three-dimensional phantom" displaying displacement, warp, and tilt of the image plane itself.
(14) A numerical Fourier transform was made of the pincushion grid illusion and the spectral components orthogonal to the illusory lines were isolated.
(15) To minimize the geometric influence, mainly pincushion effect, a cinefilm of a 1 cm grid was placed against the input screen of the image intensifier to correct the distortion by using 3rd degree polynomials.
(16) As Ian prepares for the half-mile-long return journey, he points a fistful of oily cotton waste towards the purple thistle-like flowerheads of knapweed, the pink, white and blue pincushion-shaped flowers of scabious, and the vivid blue of cornflower.
(17) The interface-controller operates extremely well, but problems related to the pulsed SIT (optimum gate position relative to the sector opening shape of high-voltage pulse, slight pincushion distortion) require more work.