Results 221 to 230 of about 149,057 (262)

Compression of Visual Space before Saccades

Perception, 1997
We studied how the human visual system recalibrates visual coordinates to compensate for saccadic eye movements. Observers made 20 horizontal saccades to a target on an otherwise featureless red screen, and reported the apparent position of a vertical green bar that was briefly displayed before, during, or after the saccade.
ROSS J.   +2 more
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Compression of Pictorial Space through Perspective Reversal

Perceptual and Motor Skills, 1963
Artists frequently wish to compress portrayed space, and restrict it to the vicinity of the picture plane. One "rule" for doing this is to "reverse" some or all of the linear perspective.-ere, six pictures were scaled by each of 43 naive judges on a graphic scale end-anchored at least three-dime~zsionul (0 ) and mosd three-dimensional ( 10) .
J, HOCHBERG, V, BROOKS
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Relativistic impedance change of compressed space

Physics Essays, 2018
Permittivity and permeability of free space appear in the formulas for electrostatic force and magnetostatic force in the SI system of units. One school of thought is that these two numbers are merely scale factors that give the correct numerical values and units of force in Newtons in the SI system.
Basart, John P., Mina, Mani
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Compressive Hyperspectral Imaging of Space Objects

Classical Optics 2014, 2014
For space objects, because of wavelength-dependent atmospheric turbulence blurring, the coded-aperture snapshot spectral imager (CASSI) multiplexes blurred hyperspectral images in a single snapshot. An algorithm is proposed to solve for true hyperspectral images.
Qiang Zhang, Robert J. Plemmons
openaire   +1 more source

Postsaccadic visual references generate presaccadic compression of space

Nature, 2000
With every rapid gaze shift (saccade), our eyes experience a different view of the world. Stable perception of visual space requires that points in the new image are associated with corresponding points in the previous image. The brain may use an extraretinal eye position signal to compensate for gaze changes, or, alternatively, exploit the image ...
M, Lappe, H, Awater, B, Krekelberg
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Space-time compression of FLIR video

Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2000
Here we discuss space-time processing of tactical forward looking IR (FLIR) video. Using a FLIR data set which does not have the perspicuity of traditional video segments, we apply a succession of simple signal processing operations to improve compression. These include transforms in time and space as well as nonlinear processing.
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Focal length and compression of space

Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, 2002
Images taken with long telephoto lenses exhibit a characteristic perspective distortion known as compression of space. Objects that are actually far apart appear unusually close together, and observed texture gradients and optic flows impart a distorted sense of orientation and depth. An attempt is made to quantify the space compression.
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Phase space compression of muon beams

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1986
Abstract A phase space compression technique applicable to short-lived particles is proposed. Its specific feature is that it treats each single particle separately by measuring its phase via position sensitive particle detectors and steers it via pulsed electromagnetic deflection.
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