Results 51 to 60 of about 2,016,364 (199)

Real-time motion analytics during brain MRI improve data quality and reduce costs [PDF]

, 2017
Head motion systematically distorts clinical and research MRI data. Motion artifacts have biased findings from many structural and functional brain MRI studies.
Dosenbach, Nico U.F., Earl, Eric A, Fair, Damien A, Greene, Deanna J, Klein, Rachel L, Koller, Jonathan M, Miranda-Dominguez, Oscar, Nagel, Bonnie J, Nguyen, Annie L, Nigg, Joel T, Snyder, Abraham Z, Van, Andrew N, Wesevich, Victoria   +12 more
core   +3 more sources

Robust Camera-Based Eye-Tracking Method Allowing Head Movements and Its Application in User Experience Research

Journal of Eye Movement Research
Eye-tracking for user experience analysis has traditionally relied on dedicated hardware, which is often costly and imposes restrictive operating conditions.
He Zhang, Lu Yin
doaj   +1 more source

A hybrid 3-D reconstruction/registration algorithm for correction of head motion in emission tomography [PDF]

, 2002
Even with head restraint, small head movements can occur during data acquisition in emission tomography that are sufficiently large to result in detectable artifacts in the final reconstruction.
Fulton, RR, Hutton, BF, Kyme, AZ, Lau, YH, Skerrett, DW   +4 more
core   +1 more source

Natural head orientation and spatial hearing with symmetric frontal maskers

Frontiers in Neuroscience
The purpose of this study was to evaluate the effect of natural, undirected head orientation on speech perception in the presence of interfering speech maskers that were symmetrically arranged to minimize the better-ear advantage.
Heesung Park, Nathan C. Higgins, Erol J. Ozmeral   +2 more
doaj   +1 more source

A Kinematic Model for 3-D Head-Free Gaze-Shifts

Frontiers in Computational Neuroscience, 2015
Rotations of the line of sight are mainly implemented by coordinated motion of the eyes and head. Here, we propose a model for the kinematics of three-dimensional (3-D) head-unrestrained gaze-shifts. The model was designed to account for major principles
Mehdi eDaemi, Mehdi eDaemi, Mehdi eDaemi, Mehdi eDaemi, J.Douglas eCrawford, J.Douglas eCrawford, J.Douglas eCrawford, J.Douglas eCrawford, J.Douglas eCrawford, J.Douglas eCrawford, J.Douglas eCrawford   +10 more
doaj   +1 more source

Abnormal head movements. [PDF]

Journal of Neurology, Neurosurgery & Psychiatry, 1979
Abnormal head movements have been studied in a variety of diseases using objective recording techniques and the data analysed with respect to the frequency content of the movement. Flopping, nodding, tic, chorea, myoclonic jerks, and most head tremors involve frequencies of approximately 2 and 4 Hz which correspond to the natural fundamental and second
M A, Gresty, G M, Halmagyi
openaire   +2 more sources

Input Sources and Properties of Position-Sensitive Oculomotor Fibres in the Rock Lobster, Panulirus Interruptus (Randall) [PDF]

, 1972
Sets of head-up, head-down, eye-up and eye-down motor fibres were studied in the oculomotor nerve of the rock lobster. An eye-withdrawal fibre was also investigated.
Wiersma, C. A. G., Yanagisawa, K., York, B.   +2 more
core  

Head movement to specifier positions

Glossa, 2019
Syntactic movement of phrases, modeled in terms of Internal Merge, has traditionally been distinguished on empirical grounds from syntactic movement of heads, modeled by other means. I demonstrate that, once the class of head movements implicated in word
Boris Harizanov
doaj   +2 more sources

Articulatory features for speech-driven head motion synthesis [PDF]

, 2013
This study investigates the use of articulatory features for speech-driven head motion synthesis as opposed to prosody features such as F0 and energy that have been mainly used in the literature.
Ben Youssef, Atef, Braude, David A., Shimodaira, Hiroshi   +2 more
core   +1 more source

Tracking human face features in thermal images for respiration monitoring [PDF]

A method has been developed to track a region related to respiration process in thermal images. The respiration region of interest (ROI) consisted of the skin area around the tip of the nose.
AL-Khalidi, F. Q., Burke, D., Elphick, H., Saatchi, R.   +3 more
core   +1 more source