PQA300 Tektronix Picture Quality Analysis System

Introduced in March 2001, the Tektronix PQA300 is the next-generation picture quality analysis system for broadcasters and other video content providers and engineers who need to ensure picture quality by analysing video content.

The PQA300 analyzes picture quality with repeatable, objective measurements that directly replicate subjective human visual assessments. These measurements provide invaluable information for engineers working to optimize video compression without compromising picture quality.

The PQA300 is both a generator and analyzer of reference test material for testing compressed video systems. It is an analysis system with reference video capture / generation, test video capture and an in-depth analysis tool complete with objective scores, graphs and frame - by - frame results. The results of the PQA300 are repeatable and the benchmark for the video under test to verify not only the broadcast quality but also the impairments that are imposed throughout the network.

Until now, subjective testing using human viewers has been the only available method for evaluating compressed video systems. But, while useful for establishing academic reference data, subjective testing has been impractical for operational, manufacturing and troubleshooting applications - until the development of the Tektronix PQA300, which provides a fast, practical and repeatable objective measurement alternative to subjective evaluation of picture quality. The PQA300 is based on the human vision model algorithm, it has the only independently verified objective and repeatable score (PQR) that strongly correlates to subjective testing ratings (up to 90% correlation). As the first to market with a picture quality analysis system with a repeatable objective score, it has been recognized in the market as the de facto standard.

The PQA300 provides Results Summary, Graph Files and PSNR Difference Maps for in-depth, detailed analysis to help you evaluate your equipment design, transmission system evaluation, or conduct your picture quality content verification and analysis at the program (video) layer.