Behavior as a Function of Video Quality in an Ecologically Valid Experiment

Abstract

Most user studies in the QoE multimedia domain are done by asking users about quality. This approach has advantages: it obtains many answers and reduces variance by repeated measurements. However, the results obtained in this context may be different from those obtained in the real application, since quality is not asked about this often in everyday life. It is more natural is to focus on user behavior. The proposed PhD focuses on a method for performing experiments based on observations of a participant’s behavior. We address two main challenges that exist in any new experiment design: how to calculate the interval validity of the proposed method and how to analyze the obtained data. The data analysis we propose is based on psychometric functions. We propose two different experiments, one of which is already ongoing.