Results 271 to 280 of about 137,229 (305)
Some of the next articles are maybe not open access.
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
openaire +2 more sources
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
openaire +1 more source
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 ...
openaire +1 more source
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
openaire +1 more source
Location and orientation estimation with an electrosense robot
2012 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2012We have designed an underwater robot that uses perturbations of an emitted electric field to sense, localize, and map its environment. This system is inspired by weakly electric fish, which emit an electric field to sense objects, localize prey, and communicate. When nearby objects distort the electric field, electroreceptors (fish) or voltage sensors (
Yonatan Silverman +3 more
openaire +1 more source
Explicit Learning of Feature Orientation Estimation
2019 IEEE International Conference on Image Processing (ICIP), 2019While many learning-driven algorithms for local feature detection and description have submerged during recent years. One key component in the pipeline, namely orientation estimation, still remains underdeveloped. Among all sorts of difficulties, the impracticality and tedium of finding a "ground truth" feature orientation as a learning target is one ...
Ji Dai +2 more
openaire +1 more source
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
openaire +1 more source
Multiscale Orientation Estimation of Perceptual Boundaries
Proceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006The dominant orientation at any point, P, in an image is the direction from P in which there is the least gray-level variance. It is often defined by using gradient estimates, but may be extended to employ neighbourhood operators that provide some degree of phase invariance.
Jeffrey Ng, Anil A. Bharath
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source