Distortion comes in two basic classes: Linear distortion, which is not an oxymoron; and nonlinear distortion, which includes all other distortions except noise. Noise is quite another matter and is ...

One of the lesser-known ways that camera manufacturers have been able to make digital cameras ever smaller and less expensive is by using in-camera software to correct for lens distortion on the fly.

Conventional techniques may not be sufficient, but a new approach to implementing nonlinear algorithms may accomplish the goal. Roy Batruni, CEO, Optichron Nonlinear signal distortion is widespread ...