Short Description

sviqualtiesThe project set up in Phase 1 a general application for satellite digital TV providers that can measure and monitor in real time the viewer Quality of Experience (QoE) and the Perceptual Video Quality (PVQ) and rapidly detect the point of quality degradation. It complies with the ITU-R Recommendation BT.1790 that indicates to the digital TV providers to monitor in real-time the Video Quality using equipment, not human operators. In Project Phase 2 the application was used in experimental measurements to determine which transponder broadcast plans are suitable for a good subjective video quality. The broadcasting plan involves: Symbol Rate; DVB-S/S2; QPSK/8PSK; FEC rate; Bit-Rate; Number and type of TV channels; MPEG-2/4 or H265 standard; Number of audio and data channels. From this plan the available bit-rate per TV channel is obtained and that determines the constraints for the video compression encoder parameters in order to maintain a constant bit rate for the whole MPEG Transport Stream multiplex. PVQ may be affected by over-compression errors, due to the constraints in the bit-rate allocation not compatible with the video content. In the Project Phase 3 the application is used in experimental measurements to specify the required receiving earth station parameters that allow the end user to have the best video quality.

Project Details