Abstract: Generating a three-dimensional image of a three-dimensional scene by generating projection data and projecting light rays based on the projection data to generate the three-dimensional image. Sampling of the data is based on at least one physical parameter associated with the projection of light rays by a projection system used to project the light rays.

Abstract: A method for providing an ultrasound image, includes: assembling data from ultrasound image data of a subject; performing linear wave inversion to provide a reflectivity volume from the assembled data; and performing vision processing to identify and localize features within the ultrasound image.

Abstract: A three dimensional image is displayed by providing initial data corresponding to the three dimensional image, generating a plurality of sets of data from the initial data, each set of data corresponding to an intersection of the three dimensional image with a surface, and displaying the three dimensional image using a three dimensional display based on the sets of data. A data processor is used to operate on the sets of data to re-center the three dimensional image.

Abstract: Enhanced image sequences are provided by a high resolution imaging system (HRIS) for generating an enhanced image, where the system includes a device for outputting an image sequence including a plurality of K source images, each source image including a plurality of pixels; and a projector for projecting, within a period of integration, each of the source images to an optical filter, the filter adapted for providing pixels of each source image as sub-pixels of pixels in the enhanced image. The enhanced images may be two-dimensional or three-dimensional. A method and computer program product are provided for generating enhanced images, as well as techniques for fabrication of the HRIS.

Abstract: A 3-D display may comprise a rotating optical diffuser for displaying 3-D parallax images in specific substantially unidirectional viewing zones as the rotating optical diffuser rotates; and a projector for projecting images through the rotating optical diffuser.

Abstract: A system and a method for rendering data associated with a 3-D scene description are provided. The system includes a graphics processing unit configured to operably communicate with a communications bus. The graphics processing unit is further configured to receive the 3-D scene description from the communications bus and to generate a 3-D image data set comprising at least a first 2-D data field based on the 3-D scene description. The graphics processing unit is further configured to transmit the 3-D image data set through the communication bus.

Abstract: In general, in one aspect, the invention features systems that include a spatial light modulator, a scanning optical component configured to direct light from the spatial light modulator along a plurality of different paths, a projection optical assembly including a plurality of projection lens modules corresponding to the plurality of different paths, wherein each projection lens module is configured to receive light from the spatial light modulator directed along the corresponding path and projects an image of the spatial light modulator to a common image space.

Abstract: A 3D display may comprise a rotating optical diffuser screen; and a projector for projecting images through the rotating optical diffuser screen. The rotating optical diffuser screen may be structured to optically create an exit pupil, said exit pupil having a limited horizontal viewing angle for displaying 3D images in specific viewing zones as the rotating optical diffuser screen rotates.

Abstract: A three-dimensional (3D) display apparatus includes an image generation subsystem (IGS) for generating at least one two-dimensional (2D) image and providing filtered rays derived from the at least one 2D image to an optical element for modulating the filtered rays and producing a 3D image, wherein the filtered rays comprise limited overlap of pixel information. A method and a computer program product for generating 3D images are provided.

Abstract: A system and a method for generating dithering patterns associated with a digital image are provided. The method includes generating a first table index value indicative of a location in a first table where first, second, and third color intensity values associated with a plurality of pixels on the display device are stored. The method further includes transmitting the first table index value from a computer to a second device via a communication bus. The method further includes accessing the first table using the first table index value to obtain the first, second, and third color intensity values associated with the plurality of pixels, the accessing being performed by the second device. The method further includes generating first, second, and third dithering patterns associated with the plurality of pixels based on the first, second, and third color intensity values, respectively, and position values indicative of positions of the plurality of pixels.

Abstract: A minimized-thickness angular scanner of electromagnetic radiation includes an optical sandwich having a two-dimensional (2D) image source, and a scanning assembly that includes a first optic and a second optic, wherein at least one of the first optic and the second optic are oscillatorily translating. Translation of the optics provides for generation of a three-dimensional (3D) image, while the optical sandwich design provides for compact implementation of 3D displays.

Abstract: Three-dimensional display apparatus and methods are disclosed. The apparatus and methods generate three-dimensional images for an observer by providing components of the image in a series of frames to an image space. Providing the image components can include: scanning an image of a light shaping element over an image space wherein each of a plurality of zones of the light shaping element is projected to each of a plurality of zones of the image space; and, selectively illuminating portions of the light shaping element zones during each of several frames during the scan, wherein each light-shaping element zone scatters the illumination and at least a portion of the scattered illumination provides a component of the three-dimensional image in the image space.

Abstract: A method for rapid rendering of a desired line in a volumetric display having a rotatable screen includes stepping the rotatable screen through a sequence of angular positions and, at each angular position, rendering, on the rotatable screen, a rasterized approximation of a line segment containing an intersection of the desired line and the rotatable screen.

Abstract: In general, in one aspect, the invention features an optical system which forms a light field by providing components of the light field in a series of frames to an image space. The optical system includes a spatial light modulator, a projection lens assembly configured to image the spatial light modulator to the image space for each of a plurality of optical paths, and a scanning optical component configured to direct light from the spatial light modulator through the projection lens to the image space, wherein during operation the scanning optical component directs light corresponding to successive frames along each of the plurality of optical paths through the projection lens assembly.

Abstract: A holographic imaging system and method includes a radiation source for generating radiation. A data base has a set of elements, each element is indicative of a trajectory of a light ray exiting a point in a recorded scene. A spatial light modulator is receptive of the radiation from the radiation source and the elements of the data base mapped to the spatial light modulator, thereby projecting from the spatial light modulator an optical signal in the nature of a two dimensional bitmap of the recorded scene. A diffractive optical element includes a set of basis fringes receptive of the projected optical signal from the spatial light modulator for diffracting the optical signal in a specified direction. A multiplexer is receptive of the elements of the data base for multiplexing the elements of the data base to the spatial light modulator. A timing device synchronizes multiplexing the elements of the data base to the spatial light modulator and diffracting the optical signal in a specified direction.

Abstract: A 3D display may comprise a rotating optical diffuser screen; and a projector for projecting images through the rotating optical diffuser screen. The rotating optical diffuser screen may be structured to optically create an exit pupil, said exit pupil having a limited horizontal viewing angle for displaying 3D images in specific viewing zones as the rotating optical diffuser screen rotates.

Abstract: A 3-D display may comprise a rotating optical diffuser for displaying 3-D parallax images in specific substantially unidirectional viewing zones as the rotating optical diffuser rotates; and a projector for projecting images through the rotating optical diffuser.

Abstract: A radiation conditioning system is presented as comprising a radiation source for generating radiation, a spatial light modulator receptive of the radiation from the radiation source, a control signal for addressing the spatial light modulator, and a radiation conditioning device of the radiation field from the spatial light modulator for conditioning the radiation field.

Abstract: A method for rendering a polytope in a volumetric display includes partitioning the polytope into a plurality of polytope sections, each of the polytope sections being disposed in an active slice defined by an entry plane and an exit plane. The presence of an imaging screen within the active slice is then detected. While the imaging screen is within the active slice, a connecting polygon is defined on the basis of a projection of the polytope section on the entry plane. This connecting polygon is then rendered on the imaging screen.

Abstract: A method of rasterizing a line on a display having pixels with locations defined by a polar coordinate system uses the sign of a discriminant to choose which of two candidate pixels is to be the next pixel on the rasterized line. The discriminant, which is derived from the desired line, is evaluated at a point in the neighborhood of the candidate pixels. The discriminant value depends on the local slope of the line in polar coordinates. The method divides the line into segments having selected ranges of slope and rasterizes the desired line along each segment.