Results 241 to 250 of about 2,236,841 (295)

Late-season flow recovery and trough-aligned subsidence reveal coexisting subglacial drainage components beneath the western Greenland Ice Sheet

Andersen J, Gimbert F, Davison B, Livingstone S, Sole A, Bjørk A.   +5 more
europepmc   +1 more source

Directed Caused Accompanied Motion Events in Sudest, an Oceanic Language With Classificatory Verbs

Typological Studies in Language, 2022
This chapter explores the expression of directed caused accompanied motion events (directed CAM) in Sudest, an Austronesian language of Vanatɨna and Yeina Islands, Papua New Guinea.
Sheppard, Harriet
exaly   +2 more sources

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Direction repulsion in motion transparency

Visual Neuroscience, 1996
AbstractA series of experiments investigated perceived direction of motion and depth segregation in motion transparency displays consisting of two planes of dots moving in different directions. Direction and depth judgments were obtained from human observers viewing these "bi-directional" animation sequences with and without explicit stereoscopic depth
E, Hiris, R, Blake
openaire   +2 more sources

Detection of Independent Motion Using Directional Motion Estimation

Computer Vision and Image Understanding, 1999
It is shown that the problem of independent motion detection can be addressed by analyzing constraints on low-dimensional directional (projected) components of flow fields. We construct a robust algorithm, implemented as a recursive filter, to extract directional motion parameters from long image sequences.
Sándor Fejes, Larry S. Davis
openaire   +2 more sources

Direct dynamic motion vision

Proceedings., IEEE International Conference on Robotics and Automation, 2002
A method is presented for estimating the structure of a scene and the motion of an observer relative to the scene from a sequence of images. Two key features distinguish this method from previous solutions to this problem: no computation of optical flow is required, which leads to considerable speedup, and a Kalman filtering algorithm takes advantage ...
openaire   +1 more source

Direct evidence for occlusion in stereo and motion

Image and Vision Computing, 1990
Discontinuities of surface properties are the most important locations in a scene; they are crucial for segmentation because they often coincide with object boundaries. Standard approaches to discontinuity detection decouple detection of disparity discontinuities from disparity computation.
James J. Little, Walter E. Gillett
openaire   +3 more sources

Direct observation of plasma dielectric motion

Physical Review Letters, 1987
Local measurement in magnetized plasma of the ion velocity distribution function synchronous with an externally launched electrostatic wave carries information concerning the wavelength perpendicular to the magnetic field as well as the wave amplitude and phase.
Skiff, F., Anderegg, F.
openaire   +2 more sources

DIRECTION-OF-MOTION STEREOTYPES: A REVIEW

Ergonomics, 1962
The offets of directional relationships between controls and displays are examined, with special reference to the influence of experience and of conditions of stress. Methods of investigation are discussed. The literature is reviewed to determine what stereotypes appear to be reasonably well-established, and attention is drawn to a number of ...
openaire   +2 more sources

Representations of motion and direction.

Journal of Experimental Psychology: Human Perception and Performance, 2000
In 6 experiments, incidental memory was tested for direction of motion in an old-new recognition paradigm. Ability to recognize previously shown directions depended greatly on motion type. Memory for translation and expansion-contraction direction was highly veridical, whereas memory for rotation direction was conspicuously absent. Similar results were
C M, Price, D L, Gilden
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Motion streaks provide a spatial code for motion direction

Nature, 1999
Although many neurons in the primary visual cortex (V1) of primates are direction selective, they provide ambiguous information about the direction of motion of a stimulus. There is evidence that one of the ways in which the visual system resolves this ambiguity is by computing, from the responses of V1 neurons, velocity components in two or more ...
openaire   +2 more sources