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Estimation of accelerometer orientation for activity recognition
2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012Tri-axial accelerometers have been widely used for human activity recognition and classification. A main challenge in accelerometer-based activity recognition is the system dependence on the orientation of the accelerometer. This paper presents an approach for overcoming this challenge by calibrating the accelerometer orientation using pre-defined ...
Ascher Friedman +3 more
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Estimation of seafloor electromagnetic receiver orientation
Geophysics, 2012ABSTRACT If the orientation of a seafloor electromagnetic (EM) instrument is unknown, it has to be estimated afterwards, relatively early in the processing. Here we present a method to estimate the horizontal and vertical orientation of seafloor electromagnetic receivers.
L. Mütschard, K. Hokstad, B. Ursin
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Investigation of Orientation Estimation of Multiple IMUs
Unmanned Systems, 2020Inertial Measurement Units (IMUs) were first applied to aircraft navigation and large devices in the 1930s. At that time their application was restricted because of constraints such as size, cost, and power consumption. In recent years, however, Micro-electromechanical (MEMS) IMUs were introduced with very favorable features such as low cost ...
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Estimating Costs for Agent Oriented Software
2006Despite the progress in agent oriented software engineering, there is still a long way before achieving maturity. Among others, there is a lack of shared experience in evaluating the cost when developing software using the agent paradigm. This paper provides some results on this issue. It collects data from real agent based projects and gives hints for
Jorge J. Gómez-Sanz +2 more
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An Orientation Estimator for the Wheelchair's Caster Wheels
IEEE Transactions on Control Systems Technology, 2011Wheelchair ergometers are a highly valuable tool in the study of the biomechanics of manual wheelchair propulsion. However, current ergometers have some drawbacks that affect their level of realism. For example, the moment of inertia of the wheelchair-user system and the caster wheels' orientation are usually neglected, despite their high influence on ...
Félix Chénier +2 more
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Estimating Uncertainty in Task-Oriented Dialogue
2019 International Conference on Multimodal Interaction, 2019Situated multimodal systems that instruct humans need to handle user uncertainties, as expressed in behaviour, and plan their actions accordingly. Speakers’ decision to reformulate or repair previous utterances depends greatly on the listeners’ signals of uncertainty. In this paper, we estimate uncertainty in a situated guided task, as leveraged in non-
Dimosthenis Kontogiorgos +2 more
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New operators for optimized orientation estimation
Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205), 2002This paper focuses on directional textures. It provides a new framework for the design of convolution masks dedicated to orientation estimation. We propose a new technique based on the combination of two complementary operators: a gradient-based operator which is adapted to sloped regions and a valleyness detector which fits the crests and valleys.
Jean-Pierre Da Costa +3 more
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Application-Oriented Evaluation of Measurement Estimation
2003The design and operation of telecommunication networks often requires measurement-based decisions. Examples of such decisions are QoS-based routing, where the measurement of the utilized link capacity influences the path selection, or cache location that uses measurements of average TCP throughput.
Adam Wierzbicki, Lars Burgstahler
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Supervised Learning for Yaw Orientation Estimation
2018 International Conference on Indoor Positioning and Indoor Navigation (IPIN), 2018With free movement and multi-user capabilities, there is demand to open up Virtual Reality (VR) for large spaces. However, the cost of accurate camera-based tracking grows with the size of the space and the number of users. No-pose (NP) tracking is cheaper, but so far it cannot accurately and stably estimate the yaw orientation of the user's head in ...
Tobias Feigl +2 more
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Estimation of Multiple Orientations at Corners and Junctions
2004Features like junctions and corners are a rich source of information for image understanding. We present a novel theoretical framework for the analysis of such 2D features in scalar and multispectral images. We model the features as occluding superpositions of two different orientations and derive a new constraint equation based on the tensor product ...
Cicero Mota +3 more
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