Perceptual Evaluation of Video Quality, combining true pixel-based picture quality evaluation with bit-stream analysis for fast and accurate subjective MOS prediction.
The novel hybrid concept allows for true device performance measurement of the Currently Viewed Quality (CVQ), while at the same time analyzing the Best Video Quality (BVQ) available from the server, given optimum encoding and network characteristics.
PEVQ-S scored top in the latest VQEG benchmark 2014 and is claimed to be the best-in-class hybrid perceptual/bitstream model for objective HD video quality measurement.
PEVQ-S embeds OPTICOM’s advanced PEVQ algorithm, the only commercially available video quality metric that has continuously been benchmarked over the years by several VQEG tests and standardized under ITU-T Recommendations J.247 and J.343 (2014).
Contrary to often applied bit stream analysis, PEVQ-S is the only FR perceptual video quality measure to truly score encoder and media stream picture quality with respect to the studio master, and thus able to score and benchmark competitive VoD streaming services.
The fully performance-optimized hybrid architecture allows for FR precision of Content & Media Stream Quality Analysis (one-time calculation at the server side) to be combined with lightweight on-line Transmission and Presentation Quality Analysis at the Client Probe – thus allowing for embedded real-time MOS scoring.
PEVQ-S is the first perceptual video quality measurement to offer full time-scalability from 2 second chunk (segment) length up to program length of several minutes, even hours. Suitable for benchmarking QoE in a long-term viewer context, not just short clips.
PEVQ-S supports full scalability from high to low video bitrates and screen sizes (from HD over SD to multimedia screen sizes VGA, QCIF, and CIF). Suitable for analyzing multi-screen programming and multi-network access.
While PEVQ-S has been extended for longer measurement durations, full J.247 backward compatibility is maintained to calculate P.910 compliant MOS scores for standardized 10 second sequences.
New ITU-T Recommendation P.1203 Supports Quality Estimation of Adaptive Bitrate Bideo Streaming Services
In December 2016, ITU-T SG12 approved recommendation P.1203, which describes algorithms ("models") that estimate the end user media quality for adaptive streaming sessions.read more
New Video Measurement Technology puts Broadband Providers and Streaming-Portals through their Paces: Zafaco and OPTICOM test the Quality of Internet Video Streaming Services throughout Germany
Speed of Internet Access alone is no Guarantee of Quality – A new Fixed Network Test by the Journal “connect” provides greater Transparency for Consumersread more
Understand the Video Quality you deliver to your subscriber:
For a sustainable adoption of IP-based OTT video services subscriber Quality-of-Experience is king. QoE needs to be competitive, or exceed established satellite and cable-TV standards.
Truly measure and competitively benchmark picture quality in a long-term context as perceived by subscribers
Standards based video quality measurement, fully backward compatible to ITU-T J.247 and P.910 subjective tests
Optimize OTT service offerings, CDN deployments and caching strategies
Benchmark and optimize video streaming characteristics of mobile networks
Differentiate your OTT service offering from the competition and incumbent TV, Mobile-TV and IPTV services
Monetize OTT services, increase customer satisfaction, reduce churn
Lower support and servicing costs by App-based testing solutions