Enabling multi-user interaction in large high-resolution distributed environments

Multiuser-centered resource scheduling for collaborative display wall environments

“…The user applications achieve minimum of approximately 17.5 Hz with our scheduling scheme. This is higher than a frame rate threshold (10)(11)(12)(13)(14)(15) where human performance can be adversely affected [43][44][45][46]. Even with a high workload and increasing number of users interacting simultaneously, our scheduler was able to maintain a sufficient frame rate, which helped subjects maintain their task performance as shown in Fig.…”

“…A small amount of resources proportional to a priority value of an application is allocated progressively. The temporary priority sum (sum_tmp) needs to be reset (line 10) before the inner loop (line 11) because some applications can be excluded during the iterations as in the conditional block (line [12][13][14]. The unitAllocAmnt of application i at time t is defined as the fraction of R opt (i, t) multiplied by i's priority proportion at time t (Eq.…”

“…This makes SAGE a low-cost, ''thin-client'' visualization endpoint where such visualizations are rendered by remote computing resources and streamed over an optical network to a display wall. SAGE also provides highly collaborative visualization environments by enabling multiple users to simultaneously view and interact with these applications on large-scale display walls [13]. An overview as well as real-world use cases of the thin-client display wall paradigm is discussed in [14,15].…”

Toward natural multi-user interaction in advanced collaborative display environments

“…Singledisplay groupware tools are represented by tabletops or large display walls operated by several users [1]. The concept of digital control rooms or war room combine multi-modal interaction with multiple of these displays and other devices to make the use of technology efficient and intuitive [2][3][4].…”

“…Growing demands on visualization of complex data caused worldwide expansion of tiled-display systems to the hundreds of laboratories and research centers, where they provide an efficient tool for visual analysis as well as for presentations and demonstrations [5,6]. Mouse + keyboard [12] widget [13] [ 1,8] [14] Mid-air [15] [ 14] Game controller [1], smartphone [16][17][18][19] Remote PC [10] The integration of multi-touch interfaces to tiled-display rendering platforms [7,8] enabled basic multi-user interaction, i.e., multiple users can interact concurrently with the environment. However, basic multi-user interaction approach is incapable of distinguishing individual users, which leads to conflicts in collaborative tasks that regularly happen.…”