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2. Lessons Learned from Implementing Light Field Camera Animation: Implications, Limitations, Potentials, and Future Research Efforts.

Author

Guindy, Mary and Kara, Peter A.

Subjects
LIGHT-field cameras, EVIDENCE gaps, CAMERAS, HARDWARE
Abstract

Among the novel 3D visualization technologies of our era, light field displays provide the complete 3D visual experience without the need for any personal viewing device. Due to the lack of such constraint, these displays may be viewed by any number of observers simultaneously, and the corresponding use case contexts may also involve a virtually unlimited numbers of users; any number that the valid viewing area of the display may accommodate. While many instances of the utilization of this technology operate with static contents, camera animation may also be relevant. While the topic of light field camera animation has already been addressed on an initial level, there are still numerous research efforts to be carried out. In this paper, we elaborate on the lessons learned from implementing light field camera animation. The paper discusses the associated implications, limitations, potentials, and future research efforts. Each of these areas are approached from the perspectives of use cases, visual content, and quality assessment, as well as capture and display hardware. Our work highlights the existing research gaps in the investigated topic, the severe issues related to visualization sharpness, and the lack of appropriate datasets, as well as the constraints due to which novel contents may be captured by virtual cameras instead of real capture systems. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Character Animation: An Automated Gait Cycle for 3D Characters Using Mathematical Equations

Author

Guindy, Mary, Elias, Rimon, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bebis, George, editor, Boyle, Richard, editor, Parvin, Bahram, editor, Koracin, Darko, editor, Porikli, Fatih, editor, Skaff, Sandra, editor, Entezari, Alireza, editor, Min, Jianyuan, editor, Iwai, Daisuke, editor, Sadagic, Amela, editor, Scheidegger, Carlos, editor, and Isenberg, Tobias, editor

Published
2016
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4. Light Field Visualization for Training and Education: A Review.

Author

Guindy, Mary and Kara, Peter A.

Subjects
DATA visualization, MIDDLE school education, THREE-dimensional imaging, SECONDARY education, AUGMENTED reality
Abstract

Three-dimensional visualization technologies such as stereoscopic 3D, virtual reality, and augmented reality have already emerged in training and education; however, light field displays are yet to be introduced in such contexts. In this paper, we characterize light field visualization as a potential candidate for the future of training and education, and compare it to other state-of-the-art 3D technologies. We separately address preschool and elementary school education, middle and high school education, higher education, and specialized training, and assess the suitability of light field displays for these utilization contexts via key performance indicators. This paper exhibits various examples for education, and highlights the differences in terms of display requirements and characteristics. Additionally, our contribution analyzes the scientific-literature-related trends of the past 20 years for 3D technologies, and the past 5 years for the level of education. While the acquired data indicates that light field is still lacking in the context of education, general research on the visualization technology is steadily rising. Finally, we specify a number of future research directions that shall contribute to the emergence of light field visualization for training and education. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Perceptual preference for 3D interactions and realistic physical camera motions on light field displays

Author

Guindy, Mary, Kara, Peter Andras, Balogh, Tibor, and Simon, Aniko

Subjects
computer
Abstract

In this paper, we present our results on the empirical studies carried out on perceptual preference regarding the potential interaction techniques and the different types of realistic physical camera motions for light field visualization. The contents of the subjective tests were displayed on a large-scale light field cinema system. Multiple subjective quality metrics were used to decompose the visual experience of the observers, and additional attention was paid to the essential aspects of long-term usage, such as dizziness.

Published
2022

25. Recommendations on the viewing distance of light field displays

Author

Kara, Peter Andras, Barsi, Attila, Tamboli, Roopak, Guindy, Mary, Kara, Peter Andras, Barsi, Attila, Tamboli, Roopak, and Guindy, Mary

Abstract

Light field visualization is an emerging 3D technology that does not rely on viewing devices, such as special glasses. Without the need for such additional devices, multiple users may simultaneously enjoy the glasses-free 3D experience from a virtually infinite number of viewing positions, as the motion parallax is continuous and smooth. Although this immensely valuable property of light field displays does enable a great deal of viewing freedom, the proper perception of the visualized content still depends on the position of the observer. Position in this context determines the distance and the angle of the observer, with respect to the screen of the display. The validity of the latter is relatively straightforward to assess: if the observer is viewing the screen from inside the angle set by the field of view of the display, then the content shall be seen from its perceptually correct angle. However, the fundamental issue with the underinvestigated topic of viewing distance is that light field visualization may lose its 3D nature if viewed from a far-away position. This is due to the fact that in such a case, a single point of the screen may emit identical rays of light towards the two pupils of the observer. Therefore, the deficiency of disparity, the lack of distinct rays may lead to a 2D visual experience, nullifying the core scientific contribution of this technology. Of course, moving sideways in front of a horizontal-only-parallax display may, in fact, induce a 3D experience via the natural sense of parallax, but it should be applicable regardless of movement. Needless to say, in a multitude of professional environments, the users of such displays are not expected to be highly mobile during the work-related utilization of the technology. However, at the time of this paper, merely a few publications of the scientific literature address the topic of viewing distance, and standardization efforts are still in a rather early phase. Summa summarum, light field disp

Published
2021

27. 3D light field LED wall

Author

Balogh, Tibor, primary, Barsi, Attila, additional, Kara, Peter Andras, additional, Guindy, Mary, additional, Simon, Aniko, additional, and Nagy, Zsolt, additional

Published
2021
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40. 3D light field LED wall

Author

Kress, Bernard C., Peroz, Christophe, Balogh, Tibor, Barsi, Attila, Kara, Peter A., Guindy, Mary, Simon, Aniko, and Nagy, Zsolt

Published
2021
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