Test Equipment of Time-variant Subjective Perceptual Video Quality in Mobile Terminals

In this article we discuss the suitability of various equipment types used to capture the user’s subjective perceptual quality evaluation for video streams with time-variant quality. We present four basic types of testing equipment (mouse, joystick, throttle and sliding bar). Since method and equipment used for testing must not influence the test results, we analyzed the requirements for the testing equipment in general and in particular its usability and design features. Furthermore, we performed and evaluated an assessment of video quality using all presented tools. The evaluation allows us to propose the most appropriate testing tool for time-variant video quality.