Choosing image quality metrics for better results.

Image Quality Criteria –Which Metric Should I Use? Introduction Image quality criteria define the expected imaging performance of an optical system.  It may also be described as the set of requirements that characterizes how well the imaging system works.  It is imperative to have image quality criteria when designing an optical imaging system, this is […]

Assessing image sharpness with MTF.

How to Measure MTF Introduction With the growing role played by optical devices in measurement, communication, and photonics, there is a clear need for characterizing optical components. A basic and useful parameter, especially for imaging systems, is the Modulation Transfer Function, or MTF. Over the past few decades technological advances, including the laser interferometer, high-speed […]