Video and image quality assessment Quality assessment (QA) consists of measuring the user's subjective opinion of perceived image/video quality, the user's quality preferences, or the utility of the images for a specific task. The goal of QA is to evaluate and compare imaging systems, and to help drive system design (e.g. sensors, image processing, displays). Image Quality (IQ) is application specific.
For example, optimizing Quality can mean:
Finding the highest amount of compression that results in the smallest visible artifacts (such as blocking or blurring) for a multimedia video compression codec Minimizing perceptual differences between the reference and the output colors of a color-matching algorithm Assessing the effect of LCD temporal response on cancer detection performance