Holografika

Hungary

Holografika

Hungary
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Darukumalli S.,Holografika | Darukumalli S.,Pázmány Péter Catholic University | Kara P.A.,Kingston University | Barsi A.,Holografika | And 2 more authors.
2016 International Conference on 3D Imaging, IC3D 2016 - Proceedings | Year: 2016

As Light Field Displays are becoming widely investigated among the research community and are recently entering consumer market, the Quality of Experience reached on such displays plays a more and more essential role in the determination of their value. Apart from the common characteristics of autostereoscopic displays, the level of zoom on a given spatial resolution also affects the subjective quality assessment of the visualized content. In this paper, we present a subjective study on the level of zoom for Light Field Displays. The perceptual effects of reconstruction based on Region of Interest are also taken into consideration due to their direct connection to zooming. Two independent experiments were carried out and they were completed by 20 test participants each, and the results of the subjective evaluation are detailed in this paper. Our work also addresses subjective quality assessment methodologies, as they influence the results obtained by such experiments. © 2016 IEEE.


Kovacs P.T.,Tampere University of Technology | Zare A.,Tampere University of Technology | Zare A.,Nokia Inc. | Balogh T.,Holografika | And 2 more authors.
Journal of Imaging Science and Technology | Year: 2017

Light field 3D displays represent a major step forward in visual realism, providing glasses-free spatial vision of real or virtual scenes. Applications that capture and process live imagery have to process data captured by potentially tens to hundreds of cameras and control tens to hundreds of projection engines making up the human perceivable 3D light field using a distributed processing system. The associated massive data processing is difficult to scale beyond a specific number and resolution of images, limited by the capabilities of the individual computing nodes. The authors therefore analyze the bottlenecks and data flow of the light field conversion process and identify possibilities to introduce better scalability. Based on this analysis they propose two different architectures for distributed light field processing. To avoid using uncompressed video data all along the processing chain, the authors also analyze how the operation of the proposed architectures can be supported by existing image/video codecs. © 2017 Society for Imaging Science and Technology.


Adhikarla V.K.,Holografika | Adhikarla V.K.,Pázmány Péter Catholic University | Jakus G.,University of Ljubljana | Sodnik J.,University of Ljubljana
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2015

The paper reports on a user study of freehand gesture interaction with a prototype of autostereoscopic 3D light field display. The interaction was based on a direct touch selection of simple objects rendered at different positions in space. The main goal of our experiment was to evaluate the overall user experience and perceived cognitive workload of such freehand interaction in 3D environment and compare it to the simplified touch-based interaction in 2D environment. The results of the experiment confirmed the hypothesis that significantly more time is required for the interaction in 3D than the interaction in 2D. Surprisingly, no significant difference was found in the results of the assessment of cognitive workload when comparing 3D and 2D. We believe the interaction scenario proposed and evaluated in this study could represent an efficient and intuitive future interaction technique for the selection and manipulation of content rendered on autostereoscopic 3D displays. © Springer International Publishing Switzerland 2015.


Adhikarla V.K.,Holografika | Adhikarla V.K.,Pázmány Péter Catholic University | Sodnik J.,University of Ljubljana | Szolgay P.,Pázmány Péter Catholic University | Jakus G.,University of Ljubljana
Sensors (Switzerland) | Year: 2015

This paper reports on the design and evaluation of direct 3D gesture interaction with a full horizontal parallax light field display. A light field display defines a visual scene using directional light beams emitted from multiple light sources as if they are emitted from scene points. Each scene point is rendered individually resulting in more realistic and accurate 3D visualization compared to other 3D displaying technologies. We propose an interaction setup combining the visualization of objects within the Field Of View (FOV) of a light field display and their selection through freehand gesture tracked by the Leap Motion Controller. The accuracy and usefulness of the proposed interaction setup was also evaluated in a user study with test subjects. The results of the study revealed high user preference for free hand interaction with light field display as well as relatively low cognitive demand of this technique. Further, our results also revealed some limitations and adjustments of the proposed setup to be addressed in future work. © 2015 by the authors; licensee MDPI, Basel, Switzerland.


Adhikarla V.K.,Pázmány Péter Catholic University | Marton F.,CRS4 | Balogh T.,Holografika | Gobbetti E.,CRS4
Visual Computer | Year: 2015

The discrete nature of multiprojector light field displays results in aliasing when rendering scene points at depths outside the supported depth of field causing visual discomfort. We propose an efficient on-the-fly content-aware real-time depth retargeting algorithm for live 3D light field video to increase the quality of visual perception on a cluster-driven multiprojector light field display. The proposed algorithm is embedded in an end-to-end real-time system capable of capturing and reconstructing light field from multiple calibrated cameras on a full horizontal parallax light field display. By automatically detecting salient regions of a scene, we solve an optimization to derive a non-linear operator to fit the whole scene within the comfortable viewing range of the light field display. We evaluate the effectiveness of our approach on synthetic and real world scenes. © 2015, Springer-Verlag Berlin Heidelberg.


PubMed | Pázmány Péter Catholic University, Holografika and University of Ljubljana
Type: Journal Article | Journal: Sensors (Basel, Switzerland) | Year: 2015

This paper reports on the design and evaluation of direct 3D gesture interaction with a full horizontal parallax light field display. A light field display defines a visual scene using directional light beams emitted from multiple light sources as if they are emitted from scene points. Each scene point is rendered individually resulting in more realistic and accurate 3D visualization compared to other 3D displaying technologies. We propose an interaction setup combining the visualization of objects within the Field Of View (FOV) of a light field display and their selection through freehand gesture tracked by the Leap Motion Controller. The accuracy and usefulness of the proposed interaction setup was also evaluated in a user study with test subjects. The results of the study revealed high user preference for free hand interaction with light field display as well as relatively low cognitive demand of this technique. Further, our results also revealed some limitations and adjustments of the proposed setup to be addressed in future work.


News Article | February 22, 2017
Site: marketersmedia.com

— The Global 3D Displays Market Research Report 2017 is a professional and in-depth study on the current state of the 3D Displays industry. In a word, This report studies 3D Displays in Global market, especially in United States, EU, China, Japan, South Korea and Taiwan, focuses on top manufacturers in global market, with capacity, production, price, revenue and market share for each manufacturer. Key companies included in this research are AU Optronics, Dimenco, HannStar Display, Holografika, Innolux Corporation, LG Electronics, Panasonic, Samsung Electronics, Sharp, Sony, Toshiba, Tridelity, Universal Display Corporation and ViewSonic. Market Segment by Region, this report splits Global into several key Region, with sales, revenue, market share and growth rate of 3D Displays in these regions, from 2011 to 2022 (forecast), like United States, EU, China, Japan, South Korea and Taiwan. Firstly, 3D Displays Market On the basis of product, this report displays the production, revenue, price, market share and growth rate of each type, primarily split into Liquid Emitting Diode (LED), Organic Light Emitting Diode (OLED), Digital Light Processing (DLP) and Plasma Display Panel (PDP). On the basis on the end users/applications, this report focuses on the status and outlook for major applications/end users, consumption (sales), market share and growth rate of 3D Displays for each application, including Automotive, Aerospace & Defense, Gaming, Retail and Others. 7.1 AU Optronics 7.1.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 7.1.2 3D Displays Product Category, Application and Specification 7.1.2.1 Product A 7.1.2.2 Product B 7.1.3 AU Optronics 3D Displays Capacity, Production, Revenue, Price and Gross Margin (2012-2017) 7.1.4 Main Business/Business Overview 7.2 Dimenco 7.2.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 7.2.2 3D Displays Product Category, Application and Specification 7.2.2.1 Product A 7.2.2.2 Product B 7.2.3 Dimenco 3D Displays Capacity, Production, Revenue, Price and Gross Margin (2012-2017) 7.2.4 Main Business/Business Overview 7.3 HannStar Display 7.3.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 7.3.2 3D Displays Product Category, Application and Specification 7.3.2.1 Product A 7.3.2.2 Product B 7.3.3 HannStar Display 3D Displays Capacity, Production, Revenue, Price and Gross Margin (2012-2017) 7.3.4 Main Business/Business Overview Figure Picture of 3D Displays Figure Global 3D Displays Production and CAGR (%) Comparison by Types (Product Category) (2012-2022) Figure Global 3D Displays Production Market Share by Types (Product Category) in 2016 Figure Product Picture of Liquid Emitting Diode (LED) Table Major Manufacturers of Liquid Emitting Diode (LED) Figure Product Picture of Organic Light Emitting Diode (OLED) Table Major Manufacturers of Organic Light Emitting Diode (OLED) Figure Product Picture of Digital Light Processing (DLP) Table Major Manufacturers of Digital Light Processing (DLP) Figure Product Picture of Plasma Display Panel (PDP) Table Major Manufacturers of Plasma Display Panel (PDP) Figure Global 3D Displays Consumption (Sales) Comparison by Applications (2012-2022) Figure Global 3D Displays Consumption (Sales) Market Share by Applications in 2016 Figure Automotive Examples Figure Aerospace & Defense Examples Figure Gaming Examples Figure Retail Examples Figure Others Examples For more information, please visit http://www.reportsweb.com/global-3d-displays-market-research-report-2017


Kovacs P.T.,Holografika | Murray N.,Athlone Institute of Technology | Rozinaj G.,Slovak University of Technology in Bratislava | Sulema Y.,Kharkiv Polytechnic Institute | Rybarova R.,Slovak University of Technology in Bratislava
Proceedings of 2015 International Conference on Interactive Mobile Communication Technologies and Learning, IMCL 2015 | Year: 2015

Existing multimedia systems used in education mostly address only two senses by using two communication channels (visual and audio) of the five human senses (sight, hearing, taste, smell, and touch), limiting the potential efficiency of learning. This paper presents a survey on existing technical opportunities for the development of an immersive learning environment. Four components of the immersive environment - visual, audio, olfactory, and haptic are described and discussed in the paper. In particular 3D displays, head mounted devices, 3D sound systems, olfactory displays, haptic devices, and interaction devices are presented. © 2015 IEEE.


Kovacs P.T.,Holografika | Zilly F.,Fraunhofer Institute for Telecommunications, Heinrich-Hertz-Institut
ACM SIGGRAPH 2012 Emerging Technologies, SIGGRAPH'12 | Year: 2012

The wide variety of commercially available and emerging 3D displays - such as stereoscopic, multi-view and light-field displays - makes content creation challenging as each displays technology requires a different number of views available of the scene. As consequence, the content creation pipelines differ considerably and involve different camera setups such as beam-splitter rigs with small baselines and high quality cameras used for stereo 3D productions or camera arrays for auto-stereoscopic displays which usually use small lower quality cameras in a side-by-side arrangement. Converting content shot for a specific display technology into a different format usually impairs the image quality and is very labor-intensive. © 2012 ACM.


Kovacs P.T.,Holografika | Balogh T.,Holografika | Nagy Z.,Holografika | Barsi A.,Holografika | And 2 more authors.
Proceedings of the 2015 ACM International Conference on Interactive Tabletops and Surfaces, ITS 2015 | Year: 2015

This poster describes the design of a display and interaction device that allows a natural mid-air manipulation and feedback of floating, true 3D objects. This so called virtual touch will create a natural feeling of manipulating and touching of the virtual 3D object for the user. The 3D display system allows users to reach into the viewing volume to touch virtual objects, and even feel gradients of haptic feedback as the hands penetrate into virtual objects. True 3D objects are dynamically relit according to the real-world environment captured by cameras, which is reflected on shiny virtual surfaces to reach more realistic user experience. On the other hand, 3D virtual objects can cast real shadows on the real workspace. In case the virtual objects are defined as light-emitting, glows can also be projected onto the desk and the real objects. These techniques together form the basis of an ultra-realistic visualization and interaction system that will find its way into many technical and educational uses. © Copyright 2015 ACM.

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