Abstract:
The invention is a method and apparatus for generating an autostereo image. The apparatus comprises at least one light source generating at least two views of an image, a parallax or "slit"-type barrier screen and at least one light-transmitting elements projecting the at least two different views provided by the light source at one or more apertures in the barrier screen. A viewer viewing the screen perceives an autostereo image as a result of the left and right eyes of the viewer seeing different views of the image. In one embodiment, the light source comprises at least one digital projector. In one embodiment, the light-transmitting elements comprise fiber optic strands. A first end of the strand is arranged to receive light projected by one of the light sources. A second end of the strand is arranged to project at a rear side of the barrier screen.
Abstract:
A process and system for displaying large (more than 1 million voxels) volumetric 3D images gives substantially higher resolution than is achievable with prior art techniques. The process and system utilize a sequence of helical slices of a 3D data set to generate a series of 2D images on a reflective surface of a light modulator. The series of 2D images generated on the light modulator are projected into a volumetric 3D-space display using an illumination light source and projection optics. Voxels in 3D space are illuminated for each 2D projected image, each voxel being located at its corresponding spatial location such that the 3D image thus generated can be viewed from any angle in a walkaround fish-tank manner without utilizing any viewing aids.
Abstract:
A post-processing method and apparatus are described whereby a second image is formed by horizontally shifting pixel primitives of a first image by an amount determined by their respective depths to give a parallax shift. To avoid gaps appearing in the shifted image, two z-buffers are maintained during rendering of the first image with the second being loaded by discarded values of the first such as to provide a record of the first occluded primitive for each pixel. The horizontal shift is applied to the contents of both z-buffers and the results written to a third z-buffer such that gaps due to the varied shift applied to the first image values (the unshifted contents of the first buffer are filled by previously occluded values from the second buffer. The two images may then be output to a suitable stereoscopic display such as a Virtual Reality headset.
Abstract:
The invention relates to a device for display an autostereoscopic image on a video screen (20) having a cylindrical lens array (10) disposed in front of it.The video screen (20) has pixels made up of p color points (RGB) placed horizontally side by side, the number of viewpoints for the autostereoscopic image is different from p.times.n (where n is a non-zero integer), and the lens.sub.-- array (10) has a pitch equal to the product of the pitch of the color points (R, G, B) multiplied by the number of viewpoints, e.g. four.
Abstract:
A system stream contiguous reproduction apparatus to which are input one or more system streams interleaving at least moving picture data and audio data, and system stream connection information includes a system clock STC generator for producing the system clock that is used as the system stream reproduction reference clock. The system stream contiguous reproduction apparatus further includes one or more signal processing decoders that operate referenced to the system clock STC, decoder buffers for temporarily storing the system stream data transferred to the corresponding signal processing decoders, and STC selectors for selecting a system clock STC referenced by the signal processing decoders when decoding the first system stream, and another system clock STC referenced by the signal processing decoders when decoding a second system stream reproduced contiguously to the first system stream.
Abstract:
A camera includes a device for variably focusing and condensing an image on an optical light. The camera includes a lens in which a clear liquid is disposed between opposing transparent elastic films. Pressure is externally applied to one of the films at a predetermined position, thereby changing the ratio of curvature of the transparent elastic film. This changes the focal length of the lens, thereby producing an image wherein all positions are in focus due to the persistence of vision effect of human vision.
Abstract:
A stereoscopic imaging arrangement comprises a) an optical device (1) having an objective (2) and further lens means (3) located remotely from but in the optical path of the objective and b) a stereoscopic imaging device (4) arranged to receive light from said further lens means and form an image on a photosensitive image plane (7), the stereoscopic imaging device having shutter means (5) arranged to selectively occlude light exiting from left and right regions of said further lens means to form right and left images on said image plane and having means for combining said right and left images to form a stereoscopic representation of the field of view of said objective. The image may be displayed on a monitor (9) and viewed stereoscopically with switching spectacles (10).
Abstract:
An HMD is provided with two piezoelectric vibrating gyros which detect vertical and horizontal angular velocities, and a horizontal sensor which detects a vertical angle. While the user's head rotates, shooting direction of a three-dimensional camera is varied in accordance with the angles obtained by integration of the detected angular velocities. While the head is stationary, the obtained vertical angle and the output of the gyro is corrected based on the angle detected by the horizontal sensor. The shooting direction of the camera can be manually set irrespective of the direction of the head, and information on the viewing direction is displayed together with a taken image.
Abstract:
A stereo-graphic system has an optical apparatus, an imaging apparatus and a recording and reproducing apparatus. The optical apparatus has a first optical device for providing right eye picture information which has a first direction. The optical apparatus also has a second optical device for providing left eye picture information which has a second direction which is coincident with the first direction. The right eye picture information and the left eye picture information are compressed along the first direction. The imaging apparatus has an imaging device which has an imaging area for providing an output image signal. The imaging area has a right region and a left region. A focusing device in the imaging apparatus focuses the right eye picture information and the left eye picture information on the right region and the left region respectively. The recording and reproducing apparatus has a recording medium, a recording device and a reproducing device. The recording device records the output image signal from the imaging device on the recording medium. Further, the reproducing device reproduces a reproducing signal from the recording medium. The reproducing signal is provided to a converter which expands the compressed right eye picture information and the compressed left eye picture information.
Abstract:
Rotating image data of a subject which is composed of two-dimensional image data for each predetermined angle of rotation of the subject is stored in storing device. Reference image data and image data delayed from the reference image data are selected out of the two-dimensional image data for each predetermined angle of rotation of the subject which are stored in the storing device, and are successively read out. One of the reference image data and the delayed image data which are read out is output as a left eye image signal, and the other image data is output as a right eye image signal.