Search results for "Frame"

Dynamic Augmented Kalman Filtering for Human Motion Tracking under Occlusion Using Multiple 3D Sensors

2020

In this paper real-time human motion tracking using multiple 3D sensors has been demonstrated in a relatively large industrial robot work cell. The proposed solution extends state-of-the-art by augmenting the constant velocity model and Kalman filter with low-pass filtered velocity states. The presented method is able to handle occlusions by dynamically inclusion in the Kalman filter of only those 3D sensors which provide valid human position data. Human motion tracking was achieved at a frame rate of 20 Hz, with a typical delay of 50 ms to 100 ms and an estimation accuracy of typically 0.10 m to 0.15 m.

Evaluating State-Based Intention Recognition Algorithms against Human Performance

2014

In this paper, we describe a novel intention recognition approach based on the representation of state information in a cooperative human-robot environment. We compare the output of the intention recognition algorithms to those of an experiment involving humans attempting to recognize the same intentions in a manufacturing kitting domain. States are represented by a combination of spatial relationships in a Cartesian frame along with cardinal direction information. Based upon a set of predefined high-level states relationships that must be true for future actions to occur, a robot can use the approaches described in this paper to infer the likelihood of subsequent actions occurring. This wo…

Ontology-based state representations for intention recognition in human–robot collaborative environments

2013

In this paper, we describe a novel approach for representing state information for the purpose of intention recognition in cooperative human-robot environments. States are represented by a combination of spatial relationships in a Cartesian frame along with cardinal direction information. This approach is applied to a manufacturing kitting operation, where humans and robots are working together to develop kits. Based upon a set of predefined high-level state relationships that must be true for future actions to occur, a robot can use the detailed state information described in this paper to infer the probability of subsequent actions occurring. This would allow the robot to better help the …

Chapter 11. Computational representation of FrameNet for multilingual natural language generation

2021

The problem of interoperability: A common data format for quantum chemistry codes

2007

A common format for quantum chemistry (QC), enhancing code interoperability and communication between different programs, has been designed and implemented. An XML-based format, QC-ML, is presented for representing quantities such as geometry, basis set, and so on, while an HDF5-based format is presented for the storage of large binary data files. Some preliminary applications that use the format have been implemented and are also described. This activity was carried out within the COST in Chemistry D23 project “MetaChem,” in the Working Group “A meta-laboratory for code integration in ab initio methods.” © 2007 Wiley Periodicals, Inc. Int J Quantum Chem, 2007

Implementation and Deployment Evaluation of the DMAMAC Protocol for Wireless Sensor Actuator Networks

2016

Abstract The increased application of wireless technologies including Wireless Sensor Actuator Networks (WSAN) in industry has given rise to a plethora of protocol designs. These designs target metrics ranging from energy efficiency to real-time constraints. Protocol design typically starts with a requirements specification, and continues with analytic and model-based simulation analysis. State-of- the-art network simulators provide extensive physical environment emulation, but still have limitations due to model abstractions. Deployment testing on actual hardware is therefore vital in order to validate implementability and usability in the real environment. The contribution of this article…

Finalità aziendali e Conceptual Framework. Soggetti destinatari dell'informazione e contrapposizioni di interessi.

2014

(ENTITY’S ENDS AND CONCEPTUAL FRAMEWORK. USERS OF FINANCIAL INFORMATION AND CONFLICTS OF INTERESTS). Conceptual Frameworks supply the rational bases upon which financial reports standards are built. Their study, then, is of core relevance for fully understanding essentials and trends of financial reports standard peculiar contents. Thus, in this work, the authors read again the structures of the two main International Frameworks (namely, the ‘private’ one by the IASB, and the ‘public’ one by the IPSASB) under the diachronic light shed by a critical and historical survey. This dynamic reading of the basic assumptions and principles of Conceptual Frameworks (from now on, simply, CF) focuses o…

Conceptual Framework: Dibattito e proposte

2014

Analysing Intercultural Dialogue Through Conceptual Densities

2020

In this chapter, we exemplify our methodological approach to analysing ‘densities’ of interrelated concepts in European education policy documents. We scrutinize instances where many of the core concepts of intercultural dialogue appear in the documents at the same time. Four core educational themes and four longer excerpts from the selected policy documents are examined in more detail. The chosen documents deal especially with multilingualism, migration, history teaching, and lifelong learning. The analysis of the conceptual densities in the chosen excerpts indicates how the meanings of intercultural dialogue are constructed through the conceptual frameworks and co-occurrences of their cor…

On the rhetoric and relevance of IS research paradigms: a conceptual framework and some propositions

2003

This paper discusses the relevance of IS research with respect to the rhetoric associated with three IS research paradigms in use - positivism, constructivism/interpretivism and critical research. The discussion is framed in terms of the following dimensions: ontological, epistemological and methodological assumptions, relationship between theory and practice, and the role of the researcher in the research process. Based on this discussion, the authors propose a theoretical framework to study the relationship of the espoused assumptions of a researcher's perspective with the degree of relevance of their knowledge claims to various stakeholders. In conclusion, some key propositions are eluci…