Research of the Dependence of the Sensitivity of the Visual System on the Geometric Dimensions of the Stimuli in the Perception of a Typical Multimedia Content

Abstract

Increasingly, television content is available to viewers on various types of screens. It is considered that the geometric dimensions of the screen for displaying video sequences affect the formation of a subjective assessment of the quality of perception of multimedia content on various devices. The impact of physical screen size with signal artefacts effects on perceived visual quality and the relative depth of field is still unclear. Users may judge the size of objects with artefacts differently, even when objects appear the same on the retina. The work aimed to study the effect of the physical size of popular televisions on forming a subjective quality assessment. The proposed method allows for the dynamic change of the visual quality of typical media content depending on the physical size of the television display. Using a sample of more than 10,000 stimulus perception thresholds for the frame, controllable factors influencing the formation of a subjective assessment of the quality of perception were found. The unique contribution of the present work is that, for the first time, we will research the impact of streaming video with artefacts on human vision systems with cognitive processing of information for various physical display sizes with fixed screen parameters and displaced user position. Provided a methodology for large-scale testing of streaming video with artefacts for various screen sizes. New data can be used for scientific purposes related to practical applications for visualization technologies, signal reception and processing in information technology devices, and related areas such as marketing, advertising, and the film industry.

Keywords

• viewing angle
• screen distance
• acceptable visual quality
• artefact perception