Roman Arberg

Bio: Roman Arberg is an academic researcher from Aalborg University. The author has contributed to research in topics: Dialogic & Support group. The author has an hindex of 1, co-authored 2 publications receiving 3 citations. Previous affiliations of Roman Arberg include MediaTech Institute.

Why a Single Measure of Photorealism Is Unrealistic

Abstract: While the concept of photorealism has important applications in computer graphics, the research community has not agreed on a definition of photorealism that specifies how to measure it. We employed two different test procedures, which correspond to different use scenarios, in order to determine the photorealism of a virtual reconstruction of a historic Viking building using two different lighting techniques. Even in this limited case, the measured degree of photorealism appears to depend on both the test procedure as well as the tested imagery; therefore, we conclude that there is no single measure of photorealism that is appropriate in all situations. Instead, photorealism appears to be a multifaceted phenomenon that requires different measurement procedures for different use scenarios. CR Categories: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Color, shading, shadowing, and texture; H.1.2 [Models and Principles]: User/Machine Systems—Human factors

What Is the Cat Doing? Supporting Adults in Using Interactive E-Books for Dialogic Reading

Abstract: Interactive e-books could provide a smart learning environment by providing adults with facilitation support for encouraging children to speak. To reap benefits for the adult reader and subsequently the children’s language development, such support must be seamless to use for the reader and not impair the main experience of joint reading. This paper investigated, by means of video interaction analysis, how facilitation support can improve dialogic reading of daycare caregivers. Facilitation support consisted of providing good words and dialogic reading prompts on the top part of the screen outside the visual and textual story line of an interactive e-book. Ten caregivers with groups of two to three children between the ages of 22 and 48 months participated in the study. Caregivers in the facilitation support group used quality prompts more often than the control group. More prompting from caregivers correlated with more utterances from the children.

"Do you think it is going to be the cock?": using ambient shadow projection in dialogic reading

Abstract: In this paper we present a lamp prototype that projects controllable shadows to create an ambient backdrop for dialogic reading between parents and their children. The lamp uses four electrochromic displays that allow masking the light and thereby control the shadows that are projected upward onto the ceiling. The displays can switch between general ambience picture and a certain story point in a Smurf book. These displays were used in a reading study with parents reading for their children and a focus group session. The results indicate that the lamp helped in spurring interest and a dialog about the story being read. The used technology proved to be implicitly triggering questions and discussion about the story by creating suspension when switching between the different shadows.

Synthesizing whole slide images

Abstract: The increasing availability of digital whole slide images opens new perspectives for computer-assisted image analysis complementing modern histopathology, assuming we can implement reliable and efficient image analysis algorithms to extract the biologically relevant information. Both validation and supervised learning techniques typically rely on ground truths manually made by human experts. However, this task is difficult, subjective and usually not exhaustive. This is a well-known issue in the field of biomedical imaging, and a common solution is the use of artificial “phantoms”. Following this trend, we study the feasibility of synthesizing artificial histological images to create perfect ground truths. In this paper, we show that it is possible to generate a synthetic whole slide image with reasonable computing resources, and we propose a way to evaluate its quality.

Requirement templates for distributed 3D graphics

Abstract: Requirements are the basis upon which software architecture lies. As a consequence they should be expressed as precisely as possible in order to propose the best compromise between stakeholder needs and engineering constraints.While some measurements such as frame rate or latency are a widely known mean of expressing requirements in the 3D community, they often are loosely defined. This leads to software engineering decisions which exclude some of the most promising options.This paper proposes to adapt a non-functional requirements expression template used in general software architecture to the specific case of 3D based systems engineering. It shows that in the process some interesting proposals appear as a straightforward consequence of the better definition of the system to be built.

Interactive projection information generation and feedback for reading behaviour

Abstract: Interactive reading is a new reading behavior in the age of intelligence. The dual-track development of new media and interactive technology has led to changes in both reading behavior and reading experience. This paper has discussed the information generation and information feedback of interactive reading, and analysed the important applications of projection technology, gesture recognition and QR code technology in interactive reading behavior from various projection interaction technologies. Through the development process of the interactive projection of the atlas series named “City Flowers of Beijing”, we aim to demonstrate the design of interactive and sustainable reading forms, deliver the multi-dimensional, multi-level and diversified reading information, create a reading experience that is both physiologically and psychologically satisfactory to the audience in the age of intelligence, and provide a new direction for the development of human-computer reading behavior in the new media age.