摘要:
An electro-optical display system for visually displaying a polarized spatially multiplexed image (SMI) of a 3-D object for use in stereoscopic viewing thereof with high image quality and resolution. In the illustrative embodiment, electro-optical display system comprises a liquid crystal display device and a micropolarization panel of electrically-passive construction. The liquid crystal display device has a display surface for visually displaying a composite pixel pattern representative of a spatially multiplexed image composed of first and second spatially modulated perspective images of the object, consisting of first and second pixel patterns. The micropolarization panel includes an optically transparent laminate portion and an optically transparent substrate portion which is in direct physical contact with the laminate portion. First and second optically transparent patterns are permanently formed in the optically transparent laminate portion. The first optically transparent pattern spatially corresponds to and is spatially aligned with the first pixel pattern displayed on the display surface so as to impart a first polarization state P.sub.1 to light emanating from the first pixel pattern and passing through the first optically transparent pattern. The second optically transparent pattern spatially corresponds to and is spatially aligned with the second pixel pattern displayed on the display surface so as to impart a second polarization state P.sub.2 to light emanating from the second pixel pattern and passing through the second optically transparent pattern.
摘要:
A desktop-based stereoscopic projection display system affording high-resolution stereoscopic and peripheral viewing of three-dimensional color imagery over a field of view of at least 180.degree.. The projection volume required by each image projector of the display system is disposed substantially within the overall display volume of the display system, while maximizing the viewing volume within which the viewer is free to move during interactive stereoscopic viewing sessions. The display system utilizes high-resolution image projectors, keystoning correcting optics and projection-beam folding mirrors which are compactly mounted immediately above the upper volume-boundary surface of the overall display volume of the system, in order to permit the use of three-dimensional display structures having footprints and display volumes that are supportable upon desktops and in other viewing environments characterized by spatial restrictions.
摘要:
A method and apparatus for generating complex 3D stereo images in response to real time viewer head movement by dynamically accessing pairs of stereo images selected from among a precomputed set of images. The precomputed images correspond to a predetermined set of possible viewpoints, and are accessed based upon a prediction of viewer head movement. The arrangement of predetermined viewpoints may be along one, two, or three dimensions.
摘要:
A multi-mode stereoscopic imaging system is described. It is the first stereo system which is convertible back and forth from the auto stereo viewing mode without glasses to the binocular stereo viewing mode with glasses. It is based on micro-polarizer arrays and spatial multiplexing of images. The system consists of a stereo image component and an auto parallax barrier component. Both components use the properties of .mu.Pols. Switching from one mode to the other is accomplished manually, and electronically with the aid of a liquid crystal light valve. The system combines the benefits of auto-stereo imaging and the binocular stereo imaging of prior art techniques without their limitations.
摘要:
A stereoscopic imaging system enabling observation of a stereoscopic image due to parallax by reproducing, on a single screen in an image-reproducing means two kinds of images of an object which are taken by two imaging units and between which there is parallax and by observing the images in such a manner that the left and right eyes of the observer observe only the separate images taken by the separate imaging units corresponding to the left and right eyes, wherein there is provided swing means for mechanically or electronically shifting the optical axes of the respective lenses of said two imaging units, by which swing means the observer can view a stereoscopic image without fatigue and in a natural condition.
摘要:
A method for providing stereoscopic image display in which right and left eye images are transmitted to the right and left eyes of a viewer by a lenticular lens sheet. The sheet consists of an array of lenticular lenses and a combined image obtained by combining pixels for right and left eye images with binocular disparity data. To maintain stereoscopic alignment when the viewer moves, this method detects the position of the viewer and, accordingly shifts the positions of the pixels for the right and left eye images on the combined image; thus, the right and left eye images are always correctly transmitted to the right and left eyes of the viewer.
摘要:
When the direction of the view line of the dominant eye of the operator moves while the operator watches the image display plane of the image display device, the view line direction measuring device measures such movement and the direction of the view field is moved, within the space, in the moving direction of the view line according to the result of calculation by the arithmetic operation unit. Thus, the image display can be obtained with reduced errors caused by the manual operation and with improved operability.
摘要:
An electro-optical backlighting panel construction for use in portable computer-based systems having direct and projection viewing modes of operation. In the illustrative embodiments of the present invention, the electro-optical backlighting panel is integrated with a LCD display panel, a micropolarization panel, and a touch-screen writing panel to provide several different types of portable computer-based systems including, for example, a portable notebook computer, a computer-driven image display device, and a portable pen-computing device. In general, each of these computer-based systems are capable of selectively displaying color video images on an actively driven display surface, or projecting such video images onto a wall surface or projection screen. These computer-based systems can be easily reconfigured for projection viewing without any sort of physical modification to the LCD display panel assembly. If desired, these computer-based systems can be used to directly view "spatially-multiplexed" images of 3-D objects or imagery during the direct viewing mode, and when desired these spatially-multiplexed images can be projected onto a wall surface or projection screen during the projection viewing mode. When the spatially-multiplexed images are viewed through electrically-passive polarized glasses, the 3-D object is perceived with stereoscopic depth sensation in either mode of viewing.
摘要:
A light source comprises an array of contiguous transparent blocks, each of which contains a light emitter such as a cold cathode fluorescent tube. The blocks have a transparent front surface which may be optically diffusing, the other surfaces being coated with a thin optically reflective layer so that each block acts as a light guide. The tubes are independently controllable, for instance so as to simulate a moving light source which may be controlled so as to track the position of an observer of a 3D display.
摘要:
Images of an object are taken from a plurality of angles so as to generate two-dimensional images obtained from the plurality of angles. The two-dimensional images are sequentially displayed in the form of stripes by a displaying device. The two-dimensional images displayed by the displaying device are deflected by a parallel scanning part by a deflection angle dependent on the individual two-dimensional images and supplied to respective virtual apertures.