Results 11 to 20 of about 5,098,360 (254)

Hierarchical video summarisation in reference frame subspace [PDF]

open access: yes, 2009
In this paper, a hierarchical video structure summarization approach using Laplacian Eigenmap is proposed, where a small set of reference frames is selected from the video sequence to form a reference subspace to measure the dissimilarity between two ...
Sadka, AH, Crookes, D, Jiang, RM
core   +6 more sources

The role of Scene Type and Priming in the processing and selection of a spatial frame of reference [PDF]

open access: yes, 2013
Johannsen K, de Ruiter J. The role of Scene Type and Priming in the processing and selection of a spatial frame of reference. Frontiers in Psychology. 2013;4:182.The selection and processing of a spatial frame of reference (FOR) in interpreting verbal ...
Johannsen, Katrin   +5 more
core   +1 more source

Operational Quantum Reference Frame Transformations [PDF]

open access: yesQuantum
Quantum reference frames are needed in quantum theory for much the same reasons that reference frames are in classical theories: to manifest invariance in line with fundamental relativity principles and to provide a basis for the definition of observable
Titouan Carette   +2 more
doaj   +1 more source

A computational model of the referential semantics of projective prepositions [PDF]

open access: yes, 2006
In this paper we present a framework for interpreting locative expressions containing the prepositions in front of and behind. These prepositions have different semantics in the viewer-centred and intrinsic frames of reference (Vandeloise, 1991).
Kelleher, John   +4 more
core   +2 more sources

SIRGAS reference frame analysis at DGFI–TUM

open access: yesJournal of Geodetic Science, 2022
The Deutsches Geodätisches Forschungsinstitut (DGFI) has been involved in the research activities of the Latin American Reference Frame SIRGAS since its establishment in 1993.
Sánchez Laura   +3 more
doaj   +1 more source

Coordinated Control of Wind Energy Conversion System during Unsymmetrical Fault at Grid

open access: yesEnergies, 2022
High penetration of wind power into the grid necessitates the coordinated action of wind energy conversion systems and the grid. A suitable generation control is required to fulfill the grid integration requirements, especially during faults.
Hemant Ahuja   +4 more
doaj   +1 more source

Effects of initial eye position on saccades evoked by microstimulation in the primate superior colliculus: implications for models of the SC read-out process

open access: yesFrontiers in Integrative Neuroscience, 2011
The motor layers of the superior colliculus (SC) are thought to specify saccade amplitude and direction, independent of initial eye position. However, recent evidence suggests that eye position can modulate the level of activity of SC motor neurons.
Jennifer M Groh   +3 more
doaj   +1 more source

Four-state reference-frame-independent quantum key distribution with non-qubit sources

open access: yes, 2021
The discrepancy between theory and experiment severely limits the development of quantum key distribution (QKD). Reference-frame-independent (RFI) protocol has been proposed to avoid alignment of the reference frame.
Yuqing Huang (153028)   +8 more
core   +1 more source

Geodetic Reference Frame for the Americas [PDF]

open access: yes, 2013
SIRGAS (an acronym of the Spanish term for ‘Geocentric Reference System for the Americas’) is an international organisation under the umbrella of the International Association of Geodesy (IAG) and the Pan-American Institute of Geography and History ...
Brunini, Claudio Antonio   +1 more
core   +1 more source

Different roles of alpha and beta band oscillations in sensorimotor gating

open access: yesFrontiers in Human Neuroscience, 2014
Alpha (8-12Hz) and beta band (18-30Hz) oscillations have been implicated in sensory anticipation and motor preparation. Here, using magneto-encephalography, we tested whether they have distinct functional roles in a saccade task that induces a remapping ...
Verena Nadine Buchholz   +3 more
doaj   +1 more source

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