Video Wall Research Articles

Exploring different content creation and display methods for remote collaboration supported by eXtended reality: comparative analysis of distinct task scenarios

AbstractRemote collaboration using eXtended Reality (XR) has been explored to establish a common ground between physically distributed individuals. To achieve usable and impactful solutions, it is paramount to understand how different content creation and display methods contribute to the work effort of each member (remote and on-site). Additionally, explore how various task scenarios influence the collaborative process, specifically examining how activities with unique characteristics and complexities affect remote work. Hence, the question arises, ’How do different display and interaction methods impact the collaborative process within specific task domains?’ In this paper, two user studies with 30 distinct participants each are described, focusing on different content creation support (Laptop Computer; Video Wall & Keyboard; Interactive Projector) and display methods (Hand-Held Device (HHD); HHD & Articulated Support; Head-Mounted Display (HMD)) for remote and on-site collaborators respectively, during scenarios of remote guidance. Plus, different physical tasks were considered for each study (Lego pieces assembly; Tangram puzzle assembly; Maintenance procedures; Resource management in a map; Training activity in a laboratory classroom), to understand which method stands out according to the characteristics of the said tasks. We report the results obtained, suggesting that for the remote part of the collaborative process, using a Video Wall & Keyboard appears to be more suitable for tasks associated with maintenance procedures, learning, and training activities. As for the on-site part, using HMD was considered the better option for maintenance, and learning tasks, closely followed by HHD & Articulated Support.

Smartphone-Enabled Interaction on Large Displays—A Web-Technology-Based Approach

This paper proposes the design and implementation of a system for simultaneous communication of several users over a single display, such as large public displays or video walls. Motivated by the lack of software frameworks that are both free and suited for the desired level of complexity, we present a novel, out-of-the-box solution for collaborative and remotely controlled application use. The solution is based exclusively on web technologies, thus significantly facilitating usability and reach, and eliminating the need for additional software installations or the use of additional devices. The architecture of the developed solution is modular and comprises three main components: (1) the environment, (2) the remote controllable application (RCA), and (3) the controller. The environment serves as a central hub that manages the data flow and ensures synchronization between the user devices. The RCA, which runs on the large display, serves as the interface for interacting with the content, while the controller, which is loaded on the users’ smartphones, enables control and interaction with the RCA in real time. By using web sockets and a server–client architecture, the system supports device- and platform-independent remote control and centralized collaboration through an off-the-shelf communication framework entirely flexible regarding client application. In order to demonstrate the possibilities of the proposed system, several different scenarios were covered, and solutions were implemented and tested on a large display in the faculty lobby.

Building Active Matrix MicroLED Displays by Additive Manufacturing (BAMBAM) – Paving the Way to a Sustainable Fine Pitch Video Wall

Building Active Matrix MicroLED Displays by Additive Manufacturing (BAMBAM) – Paving the Way to a Sustainable Fine Pitch Video Wall

30‐3: Open Standard Software Defined AV over IP Framework for LED Video Wall System †

The LED video wall market is in a growth phase as an alternative to LCD based large canvases. This paper contributes to industry body of knowledge on the opportunity to optimize the LED compute architecture for the mainstream market through key tenants of an open‐industry standard and commercial‐off‐the‐shelf product approach. With the LED market being in a growth phase this motivates a look at the compute architecture which drives such displays. A key adjacent market trend is how AV over IP is replacing domain specific protocols and more vendors adopt a software approach – both trends can be considered for application to the LED compute architecture. Four key challenges are summarized from a look at the current LED compute architecture and a template new architecture shown to explore answers to these challenges. The methodology of an incubation effort to explore this architecture is described leveraging the open‐source Intel® Media Transport Library to use SMPTE ST 2110 as a building block. Project findings are correlated back to the key challenges and reflect the tenants mentioned above. The next steps include practical considerations for product readiness.

A Study on Real-time Interactive Mobile Broadcasting System based on IP Video Wall

A Study on Real-time Interactive Mobile Broadcasting System based on IP Video Wall

Time Bomb from the West: Video, the Advertising Industry, and Consumer Culture in Late-Socialist Czechoslovakia

Time Bomb from the West: Video, the Advertising Industry, and Consumer Culture in Late-Socialist Czechoslovakia

Employing Of the Television the Technologies in Production the News Bulletins

This study aims to identify the most important modern technologies used and the extent to which they are employed in presenting and presenting news bulletins in the “Rudaw” satellite channel, and in order to achieve this, a regular random sample was selected from all bulletins (at eight o’clock in the evening - health - sports) and throughout the program cycle of the channel. For a period of (six months) starting from 1-1- 2021 to 30-6- 2021, in which the researcher relied on taking an industrial month of (30) days representing the target community consisting of (90) (bulletins). This study belongs to the descriptive studies that relied on the sample survey method, through the two tools of observation and survey content analysis of all data from the study sample. The study reached a number of results, the most important of which are: There is a diversity in the methods of presenting news in news bulletins on Rudaw satellite channel, and the method of “the announcer gives an idea of ​​the news in addition to showing motion graphics and infographics” was more used in presenting news bulletins, and the “announcer with the reporter” method was less used. And that Rudaw satellite channel focused in its presentation of news bulletins on some modern graphic techniques and dispensed with other techniques, and the channel had relied heavily on employing “On Air Graphic- Video Wall- Motion Graphics” techniques, while other techniques were not employed, the most important of which is Virtual studio and hologram technology in any way, while 3D technology is used very little.

Spectator View: Enabling Asymmetric Interaction between HMD Wearers and Spectators with a Large Display

In this paper, we present a system that allows a user with a head-mounted display (HMD) to communicate and collaborate with spectators outside of the headset. We evaluate its impact on task performance, immersion, and collaborative interaction. Our solution targets scenarios like live presentations or multi-user collaborative systems, where it is not convenient to develop a VR multiplayer experience and supply each user (and spectator) with an HMD. The spectator views the virtual world on a large-scale tiled video wall and is given the ability to control the orientation of their own virtual camera. This allows spectators to stay focused on the immersed user's point of view or freely look around the environment. To improve collaboration between users, we implemented a pointing system where a spectator can point at objects on the screen, which maps an indicator directly onto the objects in the virtual world. We conducted a user study to investigate the influence of rotational camera decoupling and pointing gestures in the context of HMD-immersed and non-immersed users utilizing a large-scale display. Our results indicate that camera decoupling and pointing positively impacts collaboration. A decoupled view is preferable in situations where both users need to indicate objects of interest in the scene, such as presentations and joint-task scenarios, as it requires a shared reference space. A coupled view, on the other hand, is preferable in synchronous interactions such as remote-assistant scenarios.

P‐4.16: Optimization for Picture Quality in LCD Video Wall Module Design

Accompanying with the gradual maturity in the LCD splicing screen market, there shows a higher demand for the technical performance and picture quality of products.In this paper, a scheme is proposed to optimize the bordered optics and enhance the brightness uniformity of LCD video wall module with D‐LED BLU. The influence of the layout of the light source, the light intensity, the angle of the middle frame reflection surface, the material scattering rate of the middle frame reflection, the designing considerations of diffusion plate and the optical film are evaluated by optical simulation, and the optimum proposal is determined. The actual verification by BOE 55′ splicing screen module shows that the scheme in this paper can eliminate the uneven brightness around the screen and the brightness of the product is increased by 8%.

21.1: Invited Paper: Diversification of Processing Requirements for Large Format IoT Displays: 8K, Programmatic and LED Walls

Large format IoT displays support a range of exciting visual experiences which are encountered in our day‐to‐day lives. Four processor roles, media player, display controller, touch controller and CV/AI module, leverage four processor types, scalar, vector, spatial and matrix, to power these experiences. Algorithm characteristics such as arithmetic, memory access and data‐dependence complexity influence the suitability of an architecture to a workload. Including, GPUs to rendering, CPUs to interactive application, and FPGAs to custom video pipelines. Programmatic advertising, touch‐less kiosks and CODEC enhancements to minimize bitrate of 8K video streams can require inference (AI) workloads. Matrix (VPU) type processors are designed to address this workload type. The narrow pitch LED wall display market is growing at 10x the overall video wall display market rate and leverages spatial FPGA processing in LED controllers, also requiring 8K resolution at smaller surface area sizes as pixel pitch reduces. Requirements on each heterogenous processor type is concluded to be growing with the combination of market trends.

57‐3: Invited Paper: Diversification of Processing Requirements for Large Format IoT Displays: 8K, Programmatic and LED Walls

Large format IoT displays support a range of exciting visual experiences which are encountered in our day‐to‐day lives. Four processor roles, media player, display controller, touch controller and CV/AI module, leverage four processor types, scalar, vector, spatial and matrix, to power these experiences. Algorithm characteristics such as arithmetic, memory access and data‐dependence complexity influence the suitability of an architecture to a workload. Including, GPUs to rendering, CPUs to interactive application, and FPGAs to custom video pipelines. Programmatic advertising, touch‐less kiosks and CODEC enhancements to minimize bitrate of 8K video streams can require inference (AI) workloads. Matrix (I PU) type processors are designed to address this workload type. The narrow pitch LED wall display market is growing at 10x the overall video wall display market rate and leverages spatial FPGA processing in LED controllers, also requiring 8K resolution at smaller surface area sizes as pixel pitch reduces. Requirements on each heterogenous processor type is concluded to be growing with the combination of market trends.

Dynamic electrochromic play via “mix-and-match” reversible metal-ligand interactions

In this issue of Chem, Zhang and co-workers report on the development of a novel methodology for creating electrochromic materials based on dynamic metal-ligand interactions. The proposed approach for the search of new systems is interesting and could allow fast developments in the area of electrochromic materials for non-emissive displays.

Innovative technologies in merchandising

The article summarizes and systematizes modern high-tech digital tools that allow modeling the behavior of a modern consumer and ensuring the efficiency of the functioning of trade enterprises by increasing sales. It has been established that merchandising has an impressive arsenal of high-tech tools, which include: projection showcase, interactive showcase, virtual shelf, 3D showcase, Aislelabs and Prism Skylabs devices, mobile applications, Fetch Robotics and Lowe's robots, ERP system, Amazon Prime Air system, etc. A projection showcase is a showcase glass (screen) covered with a special film (opaque, translucent or completely transparent) of rear projection. A projector is installed behind the screen, which transmits an image to the screen, which is clearly visible from the outside. An interactive showcase (interactive wall, touch showcase) is a video screen that interacts with a person; most often, they use multitouch technology (touch showcases) and contactless sensor technology (Kinect showcases). A virtual shelf is an LCD panel or video wall, with a Kinect system attached to the back, which “reads” human movements and allows you to control the system from a distance. The 3D showcase is an electronic counter with technology that allows 3D images to be literally projected in the air, combined with motion sensors. The motion sensor allows the showcase to react to the trajectory of passers-by, that is, the showcase is static as long as no one walks past it, and as soon as the sensors detect the movement of a person in the reach, the showcase comes to life, the colors, lighting, picture change. Digital technologies in retail are a new interactive advertising tool for attracting and retaining customer attention. Due to the effect of surprise inherent in all interactive solutions in advertising, virtual showcases (interactive walls) attract attention, keep the visitor for a long time, stimulate to make a purchase or receive information.

Emerging Geospatial Technologies in Environmental Research, Education, and Outreach

Drawing on the historical importance of visual interpretation for image understanding and knowledge discovery, emerging technologies in geovisualization are incorporated into research, education and outreach at the Center for Geospatial Research (CGR) in the Department of Geography at the University of Georgia (UGA), USA. This study aimed to develop the 3D Immersion and Geovisualization (3DIG) system consisting of uncrewed aerial systems (UAS) for data acquisition, augmented and virtual reality headsets and mobile devices, an augmented reality digital sandbox, and a video wall. We were working together integrated data products from the UAS imagery, including digital image mosaics and 3D models, and readily available gaming engine software to create augmented and virtual reality immersive visualizations. The use of 3DIG in research is demonstrated in a case study documenting the seasonal growth of vegetables in small gardens with a time series of 3D crop models generated from UAS imagery and Structure from Motion photogrammetry. Demonstrations of 3DIG in geography and geology courses, as well as public events, also indicate the benefits of emerging geospatial technologies for creating active learning environments and fostering participatory community engagement.
 Keywords: Environmental Education; Geovisualization; Augmented Reality; Virtual Reality; UAS, Photogrammetry
 Copyright (c) 2020 Geosfera Indonesia Journal and Department of Geography Education, University of Jember
 This work is licensed under a Creative Commons Attribution-Share A like 4.0 International License

Technical Colleges on the Cutting Edge: Implementing New Technologies at HGTC Library

The integration of new technologies on college campuses is an imperative to enhance learning and prepare students for career success. This article describes the implementation of new technology at a technical college library. Thanks to a multi-layered grant from The Chapin Foundation HGTC Library was able to install a video wall, 10 zSpace machines, and a PolyCom system all in the same space located inside the library. Uses of this equipment in other settings as well as at HGTC are considered.

Digital Bulletin Board for the School Community

This text describes the necessity of having a digital bulletin board in the school environment. In the context of the implementation of the project, this document also describes in detail the hardware and software specifications, the proposed use and the expandability of a wireless and remote programmable digital board, also referred as DPVW (Distance Programmable Video Wall). This paper aims to provide a proposal for a universal use of digital boards for informational use of a school community, students, teachers and school staff.

A Digital Bulletin Board for the School Community

This text describes the necessity of having a digital bulletin board in the school environment. In the context of the implementation of the project, this document also describes in detail the hardware and software specifications, the proposed use and the expandability of a wireless and remote programmable digital board, also referred as DPVW (Distance Programmable Video Wall). This paper aims to provide a proposal for a universal use of digital boards for informational use of a school community, students, teachers and school staff.

Fast surveillance video indexing & retrieval with WiFi MAC address tagging

<span>Conventional public safety surveillance video camera systems required 24/7 monitoring of security officers with video wall display installed in the control room. When a crime or incident is reported, all the recorded surveillance video streams nearby the incident area are playback simultaneously on video wall to help locate the target person. The security officers can fast forward the video playback to speed up the video search, but it requires massive manpower if there are hundreds of video streams required to be examined on the video wall. One of the possible solutions is through a suitable video indexing and retrieval technique to prioritize the video frames that need to be processed. This paper presents a WiFi sniffer enabled surveillance camera, with 3-stage WiFi frame inspection filter and the use of collected WiFi signal strength for filtering, to tag the collected WiFi MAC addresses to the surveillance video frames according to the time of the MAC address is sniffed. Additional metadata (WiFi MAC address of smartphone) collected during the occurrence of the incident can be used to prioritize the retrieving of surveillance video frames for subsequent image processing. </span>

Map Use in Transit Control Centers: Mapping geographic information flows

Map Use in Transit Control Centers: Mapping geographic information flows

Design and Implementation of IP Video Wall System for Large-scale Video Monitoring in Smart City Environments

Design and Implementation of IP Video Wall System for Large-scale Video Monitoring in Smart City Environments