Solution to distortion effect in STM scanning

STM scanning experiments on poorly conducting materials are challenging, and can cause a distortion effect. A new model corrects for this effect, allowing physicists to better study materials in their quest to understand ...

Researchers glimpse distortions in atomic structure of materials

Researchers from North Carolina State University are using a technique they developed to observe minute distortions in the atomic structure of complex materials, shedding light on what causes these distortions and opening ...

Eye implant could lead to better glaucoma treatment

For the 2.2 million Americans battling glaucoma, the main course of action for staving off blindness involves weekly visits to eye specialists, who monitor—and control—increasing pressure within the eye.

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Distortion

A distortion is the alteration of the original shape (or other characteristic) of an object, image, sound, waveform or other form of information or representation. Distortion is usually unwanted, and often many methods are employed to minimize it in practice. In some fields, however, distortion may be desirable; such is the case with electric guitar distortion.

The addition of noise or other extraneous signals (hum, interference) is not considered to be distortion, though the effects of quantization distortion are sometimes considered noise. A quality measure that explicitly reflects both the noise and the distortion is the Signal-to-noise-and-distortion (SINAD) ratio.

This text uses material from Wikipedia, licensed under CC BY-SA