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Holopanoragramme
Machine translation starting from :   
This is why in a holographic stereogram when
the surface of each elementary hologram of a plane image is too broad or that the
difference between the points of view of the plane images is too large, the observer must
move away from a certain distance compared to the holographic image not to distinguish an
evolution jerked from the relief due to incoherent displacements of the cerebral image
from each point of view and a certain depth.
But more the depth between the cerebral image of the simulated relief and the holographic
images of the plane images increases, more incoherent displacements widens and becomes
more perceptible by the eye of the observer following its vision, when it remains at a
certain distance compared to the holographic image.
The only means which the observer has to perceive a continuous evolution of the relief
without incoherent displacements which widen in-depth by more delaying the normal
evolution of the relief and by accentuating the jumps of the image from one point of view
to another, is then to be driven at a speed higher than approximately twenty-five couples
of stereoscopic images a second according to the retinal persistence used in
cinematography. The distance covered by the observer in one second depends then on the
difference between the points of view.
By taking a one meter broad opening, thousand rectangular elementary holograms of a width
of a millimetre representing each one only one plane image can be holographed to make
evolve the simulated relief of the object photographed inside the horizontal field of
vision.
From same the one height meter opening, thousand rectangular elementary holograms a height
of a millimetre representing each one only one plane image can be also holographed to make
evolve the simulated relief of the object photographed inside the vertical field of
vision.
However, these two thousand elementary holograms are not enough to allow an evolution of
the relief simulated in all the directions inside the totality of the opening of one
square meter (either a million square millimetres).
It is on the whole a million plane images and a million elementary holograms which should
be very precisely recorded according to a millimetre-length squaring.
In cinematography or video, the catch of thousand sights remained simple to carry out in
less than one minute and following only the horizontal one for the realization of a
holographic stereogram to relief simulated without vertical parallax.
But to approach the vision of reality, obtaining an evolution of the simulated relief of a
holographic stereogram in all the directions of space while multiplying by thousand this
first operation, request to face a serious time constraint thereafter, with more than
eleven hours for the realization of a million catches of sight at a rate of twenty-five a
second, and as many hours, even much more, for a million holographic recordings.
This is why the improvement of the space-time definition of the simulated relief of a
holographic stereogram with the greatest number of plane images that one could obtain
inside a large opening, remains not easily possible being given on the one hand, material
impossibility in space to take million photographs at the same time all the few tenth of
millimetres for obtaining a portrait for example, or on the other hand, considerable time
to take those with the corresponding holographic recordings successively.
In addition, with regard to a holographic stereogram carried out starting from a
succession of images in 2 dimensions of an animated object, the animation of its
stereoscopic image generated by the displacement of the observer or of its support has as
a disadvantage of being seen at the same moment in advance by an eye and late by the other
eye, as if each eye of the observer looked at at the same time a slide different from a
cinematographic film representing an object animated with shifts in time, at different
moments.
In spite of these restrictions of space and time of the stereoscopy applied to holography,
the holographic recordings of images to two dimensions have mainly an interest in the
field of the synthesized images and research in data processing for the storage of a great
number of pages in a minimum of space.
On the other
hand, the memorizing of the totality of the visual information disseminated at the
same time in space by a fixed object with three dimensions, is obtained by the holographic
recording of the object itself, for a time of realization much less long and
without the use of an extreme number of images with two dimensions.
Thanks to this natural luminous phenomenon, the integral writing thus brings the
possibility of carrying out, in only one catch of direct sight on the three-dimensional
object one quasi-instantaneous duration, the equivalent of million different photographs,
this for the restitution most faithful of the object to real scale where one finds in the
angle of vision the totality from the points of view, as through a window open on the real
world.
So that when the observer moves in front of Holopanoragramme, each part
of the volume of the image of the object remains motionless, whatever the distance of
observation and the depth from the relief, as well as the speed of the exploratory
movement.
The observer distinguishes any incoherent displacement then, nor no jump between each
point of view.
The apparent evolution of the relief of the image thus presents the space-time
high definition which is found in all the directions of observation inside the opening of
Holopanoragramme, with an evolution without jerks and perfectly continuous, thanks to the
extreme density in the number of the points of view.
With the
multitude of objects and characters who it remains to holograph, the basic technique for
the recording of Holopanoragramme more simply consists in directly
positioning the object in three dimensions (or its primary hologram) in front of a
holographic apparatus to record in a very short time, quasi-instantly, the extreme number
of information on its relief.
Holopanoragramme has thus the effectiveness to bring to the observers
evolving in the field of vision, an extreme feeling of real presence of the object with a
visual comfort, thanks to the optimal optical quality of its true relief with
space-time high definition.
After the true relief, this other quality of Holopanoragramme obtained
only by holographic ways without the old stereoscopy, is consequently irreproachable for
the presentation of exceptional objects, while being definitively in conformity with our
vision of reality.
"...5/5...
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