The three-dimensional display, capable to adapt to the user, the Laboratory developed ultrafast optoelectronics and information processing LPI together with engineers Samsung Electronics Research Center in Moscow. Basic (they breakthrough) benefits of development — "naturally" shaped volume image for each user, the maximum possible for this technology alignment settings of focus and angle of convergence of the optical axes on the subject and the high efficiency of the system.
The idea of creating a display capable of self-adjust to the person belongs to the employee LPI, the candidate of physical and mathematical sciences Andrew PUTILINA"When we simply look at a three-dimensional object, then changing its position with respect to it or twisting it, we can consider it. So the person creating a three-dimensional picture. For the natural formation of three-dimensional enough to form different images for the right and left eyes, the main thing here — the formation in the brain of a three-dimensional model of the object. And after it was formed, one begins to perceive the object as a volume. There should also be a three-dimensional image of the object, the person must be immersed in a 3D-image in terms of their actions. "
If the sensation of the object of a person is not formed in a natural way, then the object model consists wrong (here is not so much in the same proportions as in the changes on our behavior). For example, in reality, if we turn to some aspect about the subject, then he must turn to us, that is, to give yourself to consider. In modern 3D movie theaters when the object of our situation does not change — the man turns his head, and the object is rotated — "walking" — along with her. That is unnatural, so a headache — it is a natural companion of almost all stereo displays (including autostereoscopic when not to wear stereo glasses). Effect when the object is "walking" behind the head of the observer, arises as a consequence of the previous experience of the person placing objects in the objects, but the natural "showing of the subject in a new way" when the position of the viewer is called the effect of looking around. The second effect of a parasite occurs at the approach of the observer to the object. When this happens, the human eye, which is understandable, trying to focus on the object itself, and this is not possible, because the object is not real, and formed a flat-screen display. In this case, the focus is also accompanied by a slight shift of the optical axis of the eye, roughly speaking, if the object is close, the eyes converge when far — apart. These mechanisms are called by accommodation — adjustment of focus and convergence — to set the angle of convergence of the optical axes on the subject. Work accommodation and convergence must agree, but most displays that consistency is not, and therefore, another factor in the treasury of the causes of headaches.
"When an object is" get out "of the screen is called the removal, the setting is a person of focus is in the plane of the display, and the convergence in the virtual removal of the plane, where it should be a parallax angle of right and left images. This is a contradiction. If the subject is out of the plane of the screen is not strong, then the contradiction is not very strong, or if the subject had gone off the screen, this is called the extension to infinity, the contradiction is not very strong, but the more we do take-out of the image plane of the screen, the more we have convergence and disagreement accommodation. That is all spectacular offsets is a significant mismatch. "
To solve these problems, and was born diagram of an adaptive display, in other words, not just stereo displays, and adaptive system, featuring multi-view stereo information, everyone — individually. In general sketch diagram consists of a system for tracking the position of the human eye lenses and Microprojector that build a larger area of the lens stereo image for each eye, which is then focused on the area of their location. Smoothing the problems of perception stereo images is achieved both through the lens design — the patent provides examples of holographic and microprism lens, and by the fact that Microprojector designs immediately stereo image and the mobile is setting focus, and the distance between the projector and adaptively changes. Such a system can not only mitigate the problems described, but also save a lot of energy and computing resources.
"The volume of light energy that enters the human eye from the display in the order of a million (!) Share of the radiated energy. Area of the world, which takes place in the human eye, is 1-2 mm2, multiplying by two, we get what passes in both eyes, everything else is gone. So when we thought through our adaptive system, we laid her in the fact that if we do not consume excess energy, and will "spit" it only in the place where the person, then our display will consume very little energy. Roughly speaking, two small LEDs will be enough to display the information. And this man seems very bright ", — says Andrey.
As for the cost of computing resources, this is achieved through the implementation of parallel computer systems, that is, to display and process the information you need so much of the 'robots', how many people are involved in watching video. "Imagine we have a model or a three-dimensional image of some object, then the model changes or the angle of view of a person, you must immediately issue a new information according to changes or new angle of vision. When computing power naturally parallelized, that is run on each person individually, it also considerably reduces system ", — summarizes Putilin.