scholarly journals Linking Physical Objects to Their Digital Twins via Fiducial Markers Designed for Invisibility to Humans

Author(s):  
Mathew Schwartz ◽  
Yong Geng ◽  
Hakam Agha ◽  
Rijeesh Kizhakidathazhath ◽  
Danqing Liu ◽  
...  
2022 ◽  
pp. 1-18
Author(s):  
Daniel Ruzza ◽  
Gabriele Bernasconi ◽  
Pietro De Giovanni

This chapter analyses the blockchain implemented by Genuino in the collectibles industry. Since collectibles are subject to high risk of counterfeiting and fake replications, blockchain technology can help substantially to ensure transparency, originality, ownership, and data security and protection. Two methods to use blockchain in the industry seem to be the most widespread today: creating digital native collectibles on blockchain and transposing physical objects into the blockchain by creating digital twins. By using blockchain, new consumer clusters emerge, highlighting the need to modernize both the traditional economies and the current business models.


Author(s):  
Emma Gould ◽  
Stephen Guerin ◽  
Cody Smith ◽  
Steve Smith ◽  
Brian Bush ◽  
...  

We describe a spatial augmented reality system with a tangible user interface used to control computer simulations of complex systems. In spatial augmented reality, the user’s physical space is augmented with projected imagery, blending real objects with projected information, and a tangible user interface enables users to manipulate physical objects as controllers for interactive visualizations. Our system learns ad hoc objects in the user’s environment as fiducial markers (i.e., objects that are visually recognized and tracked). When combined with simulation and visualization tools, these interfaces allow the user to control simulations or ensembles of simulations via physical objects using apt metaphors. While other research has leveraged the use of depth cameras, our system enables the use of standard cameras in readily available smartphones and webcams and has an implementation that runs completely in JavaScript in the web browser. We discuss the prerequisite object-recognition requirements for such tangible user interfaces and describe computer-vision and machine-learning algorithms meeting those requirements. We conclude by presenting example applications, which are also available online.


Author(s):  
Sławomir Konrad Tadeja ◽  
Yupu Lu ◽  
Maciej Rydlewicz ◽  
Wojciech Rydlewicz ◽  
Tomasz Bubas ◽  
...  

AbstractPhotogrammetry is a promising set of methods for generating photorealistic 3D models of physical objects and structures. Such methods may rely solely on camera-captured photographs or include additional sensor data. Digital twins are digital replicas of physical objects and structures. Photogrammetry is an opportune approach for generating 3D models for the purpose of preparing digital twins. At a sufficiently high level of quality, digital twins provide effective archival representations of physical objects and structures and become effective substitutes for engineering inspections and surveying. While photogrammetric techniques are well-established, insights about effective methods for interacting with such models in virtual reality remain underexplored. We report the results of a qualitative engineering case study in which we asked six domain experts to carry out engineering measurement tasks in an immersive environment using bimanual gestural input coupled with gaze-tracking. The qualitative case study revealed that gaze-supported bimanual interaction of photogrammetric 3D models is a promising modality for domain experts. It allows the experts to efficiently manipulate and measure elements of the 3D model. To better allow designers to support this modality, we report design implications distilled from the feedback from the domain experts.


2013 ◽  
Vol 8 (2) ◽  
pp. 175-187 ◽  
Author(s):  
Lucy Talbot

The Metropolitan Police’s Crime Museum, famously known as the Black Museum, exhibits evidence from some of the most appalling crimes committed within English society from the late-Victorian era into modernity. Public admittance to this museum is strictly prohibited, preventing all but police staff from viewing the macabre exhibitions held within. The physical objects on display may vary, but whether the viewer is confronted with household items, weaponry or human remains, the evidence before them is undeniably associated with the immorality surrounding the performance of a socially bad death, of murder. These items have an object biography, they are both contextualized and contextualize the environment in which they reside. But one must question the purpose of such a museum, does it merely act as a Chamber of Horrors evoking the anomie of English society in physical form, or do these exhibits have an educational intent, restricted to their liminal space inside New Scotland Yard, to be used as a pedagogical tool in the development of new methods of murder investigation.


Author(s):  
Nikolai Karepanov

The author argues that traces include surrounding reality objects (physical objects and fields), altered by phenomena or events that occurred as a result of movement, processes and actions. The identification and investigation of traces of the investigated events is most often carried out at the places of their occurrence, separately studied and analyzed after their seizure in specially adapted and appropriately equipped conditions. The methods of traces detection are very diverse and are being constantly improved, so it is difficult even to classify them. Still, it is possible to distinguish some methodologies proposed in theory and practice. The author considers some methods of identifying traces when searching for living persons and corpses, identifying corpses; identifying and fixing traces of human hands; identifying traces on payment cards; identifying electronic traces, identifying traces of removing embossed images; identifying traces using the latest achievements of science and technology; identifying traces and constructing sign systems in description of material objects. The necessity of introduction of a standard of detecting and investigating the traces of crimes is also discussed, and a system of actions that should be included into this standard is proposed.


Author(s):  
V. A. Minaev ◽  
A. V. Mazin ◽  
K. B. Zdiruk ◽  
L. S. Kulikov

The article presents the scientific and methodological issues of formation of digital twins collections based on the use of the multi-aspect recursive decomposition algorithm of the subject area. The general approaches to the solution of topical issues of the modern stage of artificial intelligence are considered. The terminology is concretized in the interrelated areas of knowledge – information – data and its relation with the term of «digital twins» as information containers of knowledge is discussed. The structure, power estimation and metrizability of the information space presented as a recursively defined ordered set of elements – a collection of digital twins (DT-collections) are considered. It is shown that the practical implementation of this approach and its application as part of automated control systems involves maintaining the life cycle of the creation and operation of digital twins in the Integrated information storage, implementing a two-circuit scheme (model) of management. A new cognitive approach to assess the completeness of the knowledge measure in the information space is proposed. The model of the integrated information storage realizing accumulation of knowledge in data banks of primary and secondary information is considered. As an example, a recursive decomposition of a subset of engineering systems of an educational institution is performed.


Author(s):  
T. M. Robinson

This article argues the following five claims: 1. Plato’s description of the origins of cosmos in the Timaeus is not a myth, nor something unlikely: when he called it an eikos mythos or eikos logos, he meant a likely or trustworthy account on this very subject. 2. Among the details in this account, the following are prominent and surprising: a) the world was fashioned in time, in that precise point that was the beginning of time; b) several kinds of duration can be distinguished in cosmology (mainly eternity, sempiternity, perpetuity and time); and c) space is an entity characterized by movement and tension. 3. In the Statesman, Plato repeats much the same thing, adding this time the strange notion that the universe’s circular movement is periodically reversed. 4. In spite of the important differences in detail, there is a striking similarity between Plato’s account of the origins of the world and the explanation adopted by much of modern cosmology. 5. What Plato shares with so many instances of recent thought is here termed “cosmological imaginativity”. A first section of the paper deals exclusively with the Timaeus. Claims 1 and 2a are supported by a revision of the meanings of mythos and logos, followed by brief reference and discussion of the argument at Timaeus 27d, leading to the conclusion that Plato affirms that the ever-changing world has indeed had a beginning in time. Claim 2b describes five different types of duration, corresponding to Forms, the Demiurge, Space, the [empirical] world and its contents, physical objects. The second section is concerned with the myth in the Statesman, discussing it as a parallel and describing its peculiar turn to the Timaeus’ cosmology and cosmogony, a complex spheric and dynamic model. After digressing into some important ideas in modern cosmology, touching especially on affinities of some of Einstein’s ideas with of Plato’s own, the paper closes with a discussion of cosmological imaginativity, oriented to recover and recognize fully Plato’s greatness as a cosmologist.


Sign in / Sign up

Export Citation Format

Share Document