An approach to estimate correlation between QoS and perceptual video quality in packet-switched networks

Traditional QoS parameters estimated at network level are not suitable for describing quality of service perceived by the end user, but user experience can be described by QoE (Quality of Experience). QoS at user level is perceptual and subjective parameter, but there are recommendations which formalize procedures for testing perceptual quality. There are subjective and objective video quality assessment methods which are used for estimating video quality.