Abstract
This paper relates to quality of experience when viewing images, video, or other content on large ultra-high-resolution displays made from individual display tiles. We define experiments to measure vernier acuity caused by synchronization mismatch for moving images. The experiments are used to obtain synchronization mismatch acuity threshold as a function of object velocity and as a function of occlusion or gap width. Our main motivation for measuring the synchronization mismatch vernier acuity is its relevance in the application of tiled display systems, which create a single contiguous image using individual discrete panels arranged in a matrix with each panel utilizing a distributed synchronization algorithm to display parts of the overall image. We also propose a subjective assessment method for perception evaluation of synchronization mismatch for large ultra-high-resolution tiled displays. For this, we design a synchronization mismatch measurement test video set for various tile configurations for various interpanel synchronization mismatch values. The proposed method for synchronization mismatch perception can evaluate tiled displays with or without tile bezels. The results from this work can help during design of low-cost tiled display systems, which utilize distributed synchronization mechanisms for a contiguous or bezeled image display.
Highlights
Displays with large screen size and high resolution are increasingly becoming affordable and ubiquitous
Large displays are often used in certain niche markets such as public displays and digital signage markets
The work of Westheimer and McKee was focused on spatial vernier acuity only and utilized static images
Summary
Displays with large screen size and high resolution are increasingly becoming affordable and ubiquitous. Large displays are often used in certain niche markets such as public displays and digital signage markets. These include displays at public places such as airports, museums, hotels, stadiums, hospitals, malls. These displays are often created using individual small display tiles. In universities, research institutes, and corporations, large wall-sized displays are often built from small-sized individual display panels. Such large-sized tiled displays are used for scientific, medical visualization applications [1]. Prior work exists on building projection based tiled displays [5, 6]
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