Search results
In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image. It is a form of optical aberration.
Distortion is a monochromatic optical aberration describing how the magnification in an image changes across the field of view (FOV) at a fixed working distance (WD); this is critically important in precision machine vision and gauging applications.
If the distortion is quite small, it may not be noticed in ordinary pictorial photography, but if one is using a photograph for precise positional measurements (for example, in astrometry) it is necessary to correct for the distortion.
What is distortion? Distortion is an aberration occurring because an image is more or less magnified as the object is moves further off axis. Magnification of the image is dependent on the off-axis image distance.
Lens distortion is a cosmetic-type optical aberration which does not decrease the amount of information in an image. It occurs when information is displaced geometrically, and while it changes the shape of an image will not result in image blur.
Aug 16, 2023 · Optical distortion is something that affects all lenses to some extent. However, the effect is more pronounced in certain lenses and can be used to give a different spin on an otherwise...
Distortion causes the actual position of an object to appear as though it is in a different location, which can further decrease measurement accuracy (see Distortion ). For example, Figure 1a shows jumper pins on a circuit board that has been imaged by a fixed focal length lens with high distortion.
