Results 31 to 40 of about 20,396 (253)

Gaze stability for liveness detection [PDF]

Pattern Analysis and Applications, 2016
Spoofing attacks on biometric systems are one of the major impediments to their use for secure unattended applications. This paper explores features for face liveness detection based on tracking the gaze of the user. In the proposed approach, a visual stimulus is placed on the display screen, at apparently random locations, which the user is required ...
Ali, Asad, Hoque, Sanaul, Deravi, Farzin
openaire   +2 more sources

Stabilizing gaze in flying blowflies [PDF]

Nature, 1998
When the gaze is moved quickly, vision becomes blurred and the way in which three-dimensional structures are seen can be affected1. How can these effects be minimized? During flight, blowflies (Calliphora vicina) turn both the head and the thorax very quickly, producing gaze shifts which affect vision.
Schilstra, C., Hateren, J.H. van
openaire   +3 more sources

Gaze stabilization exercises derive sensory reweighting of vestibular for postural control. [PDF]

J Phys Ther Sci, 2017
Ueta Y, Matsugi A, Oku K, Okuno K, Tamaru Y, Nomura S, Tanaka H, Douchi S, Mori N.   +8 more
europepmc   +2 more sources

Head movements evoked in alert rhesus monkey by vestibular prosthesis stimulation: implications for postural and gaze stabilization. [PDF]

PLoS ONE, 2013
The vestibular system detects motion of the head in space and in turn generates reflexes that are vital for our daily activities. The eye movements produced by the vestibulo-ocular reflex (VOR) play an essential role in stabilizing the visual axis (gaze),
Diana E Mitchell, Chenkai Dai, Mehdi A Rahman, Joong Ho Ahn, Charles C Della Santina, Kathleen E Cullen   +5 more
doaj   +1 more source

Integration of visual and antennal mechanosensory feedback during head stabilization in hawkmoths

eLife, 2022
During flight maneuvers, insects exhibit compensatory head movements which are essential for stabilizing the visual field on their retina, reducing motion blur, and supporting visual self-motion estimation.
Payel Chatterjee, Agnish Dev Prusty, Umesh Mohan, Sanjay P Sane   +3 more
doaj   +1 more source

Conserved subcortical processing in visuo-vestibular gaze control

Nature Communications, 2022
Here, the authors show that gaze stabilization relies on a visuo-vestibular network conserved from lamprey to primates. This primordial blueprint highlights how visual and vestibular streams are organized to control fundamental aspects of eye movements.
Tobias Wibble, Tony Pansell, Sten Grillner, Juan Pérez-Fernández   +3 more
doaj   +1 more source

Human Gaze Stabilization During Active Head Translations [PDF]

Journal of Neurophysiology, 2002
This study investigated how binocular gaze is controlled to compensate for self-generated translational movements of the head where geometric requirements dictate that the ideal gaze signal needs to be modulated by the inverse of target distance. Binocular gaze (eye plus head) was measured for visual and remembered targets at various distances in six ...
Medendorp, W.P., Gisbergen, J.A.M. van, Gielen, C.C.A.M.   +2 more
openaire   +5 more sources

Retinal motion statistics during natural locomotion

eLife, 2023
Walking through an environment generates retinal motion, which humans rely on to perform a variety of visual tasks. Retinal motion patterns are determined by an interconnected set of factors, including gaze location, gaze stabilization, the structure of ...
Karl S Muller, Jonathan Matthis, Kathryn Bonnen, Lawrence K Cormack, Alex C Huk, Mary Hayhoe   +5 more
doaj   +1 more source

Active gaze stabilization

Proceedings of the 2014 Indian Conference on Computer Vision Graphics and Image Processing, 2014
We describe a system for active stabilization of cameras mounted on highly dynamic robots. To focus on careful performance evaluation of the stabilization algorithm, we use a camera mounted on a robotic test platform that can have unknown perturbations in the horizontal plane, a commonly occurring scenario in mobile robotics.
Lesmana, Martin, Landgren, Axel, Forssén, Per-Erik, Pai, Dinesh K.   +3 more
openaire   +3 more sources

Saccadic dysfunction in patients with hypoxic-ischemic encephalopathy [PDF]

Journal of Integrative Neuroscience, 2018
Electrophysiological monitoring of saccadic eye movements in patients with hypoxic-ischemic encephalopathy was carried out. Externally guided saccades (prosaccades) were recorded using a patented hardware-software complex for studying a subject's ...
Elena L. Teslenko, Elena V. Damyanovich, Ilija Damjanović, Zoran Gačić, Boris K. Baziyan
doaj   +1 more source