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Lecture Notes in Computer Science
shown that more than two different rigid motions can hardly ever give rise to the same direction of flow at every point on a hemisphere. ... Hereafter, for the sake of brevity, we will refer to the motion field also as the flow field or simply flow, and to the direction of the motion field as the directional flow field or simply directional ... Equation (36) describes a second order curve on the sphere, which we will call the zero motion contour of the rigid motion (t,w). The zero-motion contour consists of two closed curves on the sphere. ...doi:10.1007/3-540-61123-1_132 fatcat:ddazunpfmrcpfdenupy2a2ztt4
I show here that the class of surfaces leading to ambiguous motion fields is extremely restricted-only certain hyperboloids of one sheet (and some degenerate forms) qualify. ... Furthermore, the viewer must be on the surface for it to lead to a potentially ambiguous motion field. ... Later, Professor Dean Merchant of Ohio State University pointed out the relevance of the earlier Ph.D. thesis of Arthur Brandenberger  on exterior orientation. ...doi:10.1007/bf00127824 fatcat:pdbqswma7jdixkwlj4x6ef2fyi
The fact that we are hardly ever aware of ambiguous visual input during natural vision must be attributed to the fact that ambiguous stimulation is truly ambiguous only when it is completely isolated from ... when their orientations promote grouping  and ambiguous apparent motion dot displays share a perceived direction of motion  , as do lines ambiguously rotating in depth  . ...doi:10.1098/rstb.2011.0358 pmid:22371615 pmcid:PMC3282309 fatcat:d57d2nbz6jghnbz3nlaszjlfay
The London Magazine Enlarged and Improved
Proteéted by Rae of the Houfe, you refolv- add fuel to the fire of popular "y, and, fince you could not ruin 2 conviction, to ruin by bold ons, by ambiguous hints, and Aree _ You’ will pardon me ‘f with ... in the in- tte of the motion. ...
Advances in Sound Localization
It is axisymmetric, with a relative sound pressure null at locations in the field that are perpendicular to the axis of source motion. ... Contour plot of sound pressure field in the test arena. A and B are alternative fish release sites. B. Particle motion field in the test arena calculated from pressure gradient measurements. ... Sound source localization (SSL) is defined as the determination of the direction from a receiver, but also includes the distance from it. ...doi:10.5772/13892 fatcat:jdwf73p7ujawdczmt7zclcrt7m
Scientific American Supplement
change in direction of P motion in space when CAP came into a straight line; this sudden change in direction of P’s motion is due to the rota- tion of the line AP. ... The parallelogram of motion still stands without ex ception and hints that general direction of motion is along P R and equal to P R. ...
In particular, we leverage on the pair of visual rays that are parallel to each other but opposite in direction, and compute what we call the quasiparallax for translation recovery. ... narrow field of view. ... In this paper, we pursue this strategy of pooling motion information from visual fields that are 180 • opposite to each other for general ego-motion estimation. ...doi:10.1007/s11263-009-0226-0 fatcat:25loiildprapbm2phl73wp2dfm
The argument is based on Larmor's radiation formula, where in a synchrotron case the radiation power is along the instantaneous direction of motion of the charge. ... This apparent paradox is resolved when effects on the charge motion are calculated not from Larmor's formula but from Lorentz's radiation reaction formula. ... All charges of a given energy and pitch angles, directed towards the observer in a narrow angle 1/γ around the line of sight not only lose energy but will also get shifted outside the angle 1/γ around ...arXiv:1602.09033v1 fatcat:e4bfl2phunfvplw5wytveo7wpu
A third answer, hardly ever entertained, is that space is a biological/ ecological concept. ... In the second experiment the point-light figure was walking backwards, making the global orientation of the point-light fig- HUMAN EXPERIMENTAL PSYCHOLOGY ure opposite to the direction of global motion ...
Of course this tendency is hardly ever, if ever, completely realized. It is a limiting coincept, like that of law and causation. ... the field wherein such variations occur we are not concerned; enough that they are widely prevalent. ...doi:10.2307/2013103 fatcat:jbm3drcwxzh37ltzdr2g3d2j2u
state of the observer in perceiving ambiguous displays. ... Here we offer an overview of both classical and recent contributions on how stable and transient states of the observer can impact ambiguous perception. ... CONCLUDING REMARKS The truthfulness of the outside world, as it appears to the viewer's eye, is hardly ever questioned by the man in the street. ...doi:10.3389/fnhum.2014.00979 pmid:25538601 pmcid:PMC4259127 fatcat:viw5x6hg5rcmllwh534zadvpke
Human observers are able to match and discriminate simple light field properties (e.g. average illumination direction and diffuseness) of objects and scenes, but they make systematic errors, which depend ... Image analysis on the basis of second order statistics and human observers estimates correspond well and are both subject to the bas-relief and the convex-concave ambiguities. ... Susan te Pas, Astrid Kappers and Jim Todd for the fruitful collaboration in the studies which were reported in this paper, the technical support from Utrecht University, and Philips Research for the use of ...doi:10.1117/12.817162 dblp:conf/hvei/Pont09 fatcat:muwthz4z25cethh4ckuewboqyu
Music Theory Online
While Clarke notes in 2005 that only "partial convergence" between the two fields had taken place, in 2015, such a union is hardly uncommon. ... meaning-is as relevant as ever. ... the profound impact of human beings and their cultures; and that in a reciprocal fashion perceivers are highly structured organisms that are adapted to that environment" (17) ...doi:10.30535/mto.21.3.14 fatcat:bzoqjl6g3vexvcuowxwrgfvygm
The polarization of electrons induced by quantum fluctuations of the vacuum field can be used as a robust radiation detector for the Unruh effect, where an idealized thermometer accelerated through vacuum ... It is the vertical fluctuations (in the direction of the magnetic field) which induce spin transitions. ... motion. ...doi:10.1051/epn/19912204078 fatcat:vfq7tdjo3jhl3eze5wmlljp2ny
The commonly proposed mechanism is a spatio-temporal motion detector with a receptive field, for which spatial distance and temporal delays are interchangeable, and which has generally been regarded as ... Spatio-temporal interpolation describes the ability of the visual system to perceive shapes as whole figures (Gestalts), even if they are moving behind narrow apertures, so that only thin slices of them ... INTRODUCTION Spatio-temporal interpolation is one of those integrative components underlying our visual experience so perfectly that one would hardly ever think that there is a problem at all. ...doi:10.1371/journal.pone.0000264 pmid:17327923 pmcid:PMC1800347 fatcat:cs2wdvdaavasvkls4hyaocelym
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