Institute for Telecommunication Sciences / Research / Quality of Experience / Video Quality Research / Subjective Testing / Subjective Testing

Improved Methods for Video Quality Subjective Testing

ITS contributes to efforts within the Video Quality Experts Group (VQEG) and ITU-T Study Group 12 to improve best practices for video quality subjective testing. ITS has conducted various studies to understand subjective test methods that ask questions like "what environmental factors matter in subjective testing" and "how do methods need to be modified for new video technologies." 

Lab Facilities

This web page provides insights into audio and video subjective testing and describes ITS facilities for conducting subjective tests. 

2025, History of ITU-T Rec. P.910 and P.913

This white paper explains the differences between ITU-T Rec. P.910 and P.913, including the reasons that P.913 was initially created and later discontinued.

Circa 2015, Subject Screening 

This white paper provides an overview of subject screening techniques. MATLAB® code implementing the techniques is provided. Since this white paper was written, Zhi LI (Netflix) led a collaborative effort within VQEG to develop improved methods for subject screening. Those methods appear in ITU-T Rec. P.910.  

Analyses of Subjective Test Methods

The following publications showcase ITS research into an improved understanding of video quality subjective test methods. Most of these studies were only possible due to international collaborations and insights from discussions at VQEG meetings.  

Analysis of Cameras, Monitors, and Codecs

The following publications showcase ITS research into an improved understanding of specific aspects of video quality subjective methods, including the impact of use case, device, and cameras capture. Most of these publications describe experimental methods used to create video quality datasets.