scholarly journals Limits of subjective and objective vection for ultra-high frame rate visual displays

Displays ◽  
2020 ◽  
Vol 64 ◽  
pp. 101961 ◽  
Author(s):  
Séamas Weech ◽  
Sophie Kenny ◽  
Claudia Martin Calderon ◽  
Michael Barnett-Cowan
Keyword(s):  
Frame Rate ◽  
Visual Displays ◽  
High Frame Rate

scholarly journals Limits of subjective and objective vection for ultra-high frame rate visual displays

2020 ◽  
Author(s):  
Séamas Weech ◽  
Sophie Kenny ◽  
Claudia Martin Calderon ◽  
Michael Barnett-Cowan
Keyword(s):  
Optic Flow ◽  
Path Length ◽  
Visual Motion ◽  
Postural Sway ◽  
Human Perception ◽  
Frame Rate ◽  
Large Field ◽  
Visual Displays ◽  
High Frame Rate ◽  
Postural Responses

AbstractLarge-field optic flow generates the illusory percept of self-motion, termed ‘vection’. Smoother visual motion displays generate a more compelling subjective sense of vection and objective postural responses, as well as a greater sense of immersiveness for the user observing the visual display. Research suggests that the function linking frame rate and vection asymptotes at 60 frames per second (FPS), but previous studies have used only moderate frame rates that do not approach the limits of human perception. Here, we measure vection using subjective and objective (mean frequency and path length of postural centre-of-pressure (COP) excursions) responses following the presentation of high-contrast optic flow stimuli at slow and fast speeds and low and ultra-high frame rates. We achieve this using a novel rendering method implemented with a projector capable of sub-millisecond temporal resolution in order to simulate refresh rates ranging from very low (15 FPS) to ultra-high frame rates (480 FPS). The results suggest that subjective vection was experienced most strongly at 60 FPS. Below and above 60 FPS, subjective vection is generally weaker, shorter, and starts later, although this pattern varied slightly according to the speed of stimuli. For objective measures, while the frequency of postural sway was unaffected by frame rate, COP path length was greatest for 480 FPS stimuli. Together, our results support diminishing returns for vection above 60 FPS and provide insight into the use of high frame rate for enhancing the user experience in visual displays.

Measurement of regional pulse wave velocity using very high frame rate ultrasound

Choonpa Igaku ◽  
2015 ◽  
Vol 42 (6) ◽  
pp. 701-709
Author(s):  
Hideyuki HASEGAWA ◽  
Kazue HONGO ◽  
Hiroshi KANAI
Keyword(s):  
Pulse Wave Velocity ◽  
Wave Velocity ◽  
Pulse Wave ◽  
Frame Rate ◽  
High Frame Rate ◽  
Very High

scholarly journals High frame-rate multichannel beam-scanning microscopy based on Lissajous trajectories

2014 ◽  
Vol 22 (20) ◽  
pp. 24224 ◽  
Author(s):  
Shane Z. Sullivan ◽  
Ryan D. Muir ◽  
Justin A. Newman ◽  
Mark S. Carlsen ◽  
Suhas Sreehari ◽  
...  
Keyword(s):  
Frame Rate ◽  
Scanning Microscopy ◽  
Beam Scanning ◽  
High Frame Rate ◽  
Lissajous Trajectories

scholarly journals Optimization of Microbubble Concentration and Acoustic Pressure for Left Ventricular High Frame Rate EchoPIV in Patients

2021 ◽  
pp. 1-1
Author(s):  
Jason Voorneveld ◽  
Lana B.H. Keijzer ◽  
Mihai Strachinaru ◽  
Daniel J. Bowen ◽  
Ferit O. Mutluer ◽  
...  
Keyword(s):  
Acoustic Pressure ◽  
Left Ventricular ◽  
Frame Rate ◽  
High Frame Rate

scholarly journals Intracardiac flow visualization using high‐frame rate blood speckle tracking echocardiography: Illustrations from infants with congenital heart disease

2021 ◽  
Vol 38 (4) ◽  
pp. 707-715
Author(s):  
Massimiliano Cantinotti ◽  
Pietro Marchese ◽  
Martin Koestenberger ◽  
Raffaele Giordano ◽  
Giuseppe Santoro ◽  
...  
Keyword(s):  
Congenital Heart Disease ◽  
Heart Disease ◽  
Flow Visualization ◽  
Speckle Tracking ◽  
Congenital Heart ◽  
Speckle Tracking Echocardiography ◽  
Frame Rate ◽  
High Frame Rate ◽  
Intracardiac Flow
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