Abstract: A neutralizing sheet for an autostereoscopic image viewing system. The image viewing system includes a lenticular sheet covering a display screen. The neutralizing sheet including a pliable portion and is movable between a first position and a second position. The pliable portion has a refractive index similar to the lenticular sheet. When pressed into the lenticular sheet to define the first position, the pliable portion deforms to assume the shape of the lenticular sheet. Thus, refraction through the lenticular sheet is neutralized and viewing of planar images is enabled. In the second position, the neutralizing sheet is separated from the lenticular sheet and viewing of stereoscopic images is enabled.

Abstract: A dual mode autostereoscopic lens sheet. The lens sheet has at least one refractive region and at least one non-refractive region. When the lens sheet is held in intimate juxtaposition with a display, stereoscopic content may be viewed in the refractive region while planar content may be simultaneously viewed in the non-refractive region. In a preferred embodiment, the non-refractive region forms a vertical column on one end of the lens sheet and the refractive region forms a vertical column on the other end of the lens sheet. Advantageously, the refractive region defines a picture area having an aspect ratio of approximately 1.3:1.

Abstract: A polarizing modulator for use in an electronic stereoscopic display system having a sequentially scanning display includes a plurality of liquid crystal segments arranged contiguously in a direction of the sequential scan. The liquid crystal material used in each segment has its phase shift tuned to eliminate the perception of a visible line between segments. In a preferred embodiment, the phase shift is tuned by applying a bias voltage to the liquid crystal in its low state.

Abstract: A system and method for interdigitating multiple perspective views in a stereoscopic image viewing system. A lenticular sheet is affixed in intimate juxtaposition with a display area having a defined aspect ratio. The display area includes a plurality of scan lines each having a plurality of pixels, each pixel including subpixels. A map having the same resolution as the display is created to store values corresponding to each subpixel in the display area. Preferably, the map is generated beforehand and stored for later use through a lookup operation. A buffer stores a frame having n views, wherein each of the n views has the same aspect ratio as the display area. A plurality of masks is also created and stored. Each mask corresponds to a unique one of the n views and includes opaque areas and a plurality of transparent windows, each of which corresponds to a selected subpixel location.

Abstract: A system and method for interdigitating multiple perspective views in a stereoscopic image viewing system. A lenticular sheet is affixed in intimate juxtaposition with a display area having a defined aspect ratio. The display area includes a plurality of scan lines each having a plurality of pixels, each pixel including subpixels. A map having the same resolution as the display is created to store values corresponding to each subpixel in the display area. Preferably, the map is generated beforehand and stored for later use through a lookup operation. A buffer stores a frame having n views, wherein each of the n views has the same aspect ratio as the display area. A plurality of masks is also created and stored. Each mask corresponds to a unique one of the n views and includes opaque areas and a plurality of transparent windows, each of which corresponds to a selected subpixel location.

Abstract: A parallax panoramagram has increased depth and sharpness when a sharpness filter is applied after interdigitation of multiple image portions. An optical path of wave train (204) (on-axis) and wave train (205) (off-axis) intersect a single lenticle (201). The lenticle has a focal length (208) and the on-axis (204) and off-axis (205) wave trains correspond to different stripes. These wave trains (204 and 205) comme to focus at points (206 and 207) respectively. The surface (202) has a cylindrical curvature, and bracket (203) denotes the width of the lenticle (201). Each eye of the observer sees its own perspective view when looking at a lenticular stereogram.

Abstract: A neutralizing sheet for an autostereoscopic image viewing system. The image viewing system includes a lenticular sheet covering a display screen. The neutralizing sheet including a pliable portion and is movable between a first position and a second position. The pliable portion has a refractive index similar to the lenticular sheet. When pressed into the lenticular sheet to define the first position, the pliable portion deforms to assume the shape of the lenticular sheet. Thus, refraction through the lenticular sheet is neutralized and viewing of planar images is enabled. In the second position, the neutralizing sheet is separated from the lenticular sheet and viewing of stereoscopic images is enabled.

Abstract: A dual mode autostereoscopic display. A lenticular sheet is coupled to a display surface by a mechanical mechanism. The lenticular sheet has a thickness which is less than the focal length. The mechanism is used to raise and lower the lenticular sheet over a fixed distance between a raised position, wherein the lenticular sheet is parallel to and separated from the display surface, and a lowered position, wherein the lenticular sheet is parallel and close to the display surface. In the raised position, a user observes stereoscopic content. In the lowered position, the user observes planar content.

Abstract: A lenticular antireflection screen for an electronic display. A lens sheet is arranged in juxtaposition with the display surface of an electronic display. There may or may not be an air gap between the lens sheet and the display surface. The lens sheet has a thickness that is proportional to the pitch of the lenticules. The front surface of the lens sheet includes lenticules oriented at an angle other than 90 degrees relative to a horizontal edge of the lens sheet. The optimum angle for a particular display can be determined by rotating the lens sheet in front of the display and observing when reflections are minimized. In an alternative arrangement, the rear surface of the lens sheet includes concave lenticular elements with a negative diopter power.

Abstract: A lenticular stereogram has an improved viewing zone for a specific viewing distance when an image print (207) having an optimum image column width is utilized. The optimum image column width is determined by observing a series of two color prints having variable image column widths mounted under a lenticular screen (206) through an imaging apparatus.

Abstract: A video code is embedded into the active video area of a stereo subfield. The video code is detected using an electronic circuit and used to maintain synchrony of the selection device with perspective images. Preferably, the video code is a predetermined sequence of colors.

Abstract: A stereoscopic media player is implemented by a software application loaded onto a PC having a DVD player and a video monitor interconnected therewith. The software application includes program instructions for mapping stereoscopic images stored in a side-by-side format on the DVD into an above-and-below format for display on the monitor.

Abstract: A pair of stereoscopic eyewear includes an element for integral assembly with the eyewear including a conductive circuit trace. The conductive pattern provides electrical contact between a contact area of the frame (which is hardwired to an electrical cable) and the contact pads of the liquid crystal shutter pair. Preferably, a conductive elastomer is used to facilitate the electrical contact to the shutters and the frame. Additionally, each wire of the cable is terminated with a fixed electrical contact adapted to securely mate with a slot in the frame that correspond to the contact area. A lens assembly attaches to the frame to rigidly hold the frame, the shutters and the conductive trace in intimate juxtapostion.

Abstract: A method for synthesizing multiple intermediate view images from a pair of planostereoscopic source images. The source images have different perspective views which are spaced apart in a horizontal plane. Control points are defined at corresponding locations in the source images, and each control point includes position and color information. Intermediate images are created as transformations of the source images by “morphing” from one source image to the other using position and color information from each of the corresponding locations. In a panoramagram embodiment, the intermediate images and the source images are then interdigitated to create a single output image with a continuum of views ranging from one source image to the other source image.

Abstract: An autostereoscopic lenticular screen has a lenticular screen held in juxtaposition with a display surface. The lenticular screen has lenticules disposed on one side thereof and a smooth surface on the other side thereof. In one aspect of the invention, a closed chamber is formed over the lenticules. In order to deactivate the refractive properties of the lenticular screen, and thereby view the display in a planar mode, an optically clear fluid, such as a floropolymer, is introduced into at least a portion of the closed chamber. In order to activate the refractive properties of the lenticular screen, and thereby view the display in a stereoscopic mode, the optically clear fluid is removed from the closed chamber. In a particularly preferred arrangement, the lenticular screen is oriented such that the lenticules face inwardly toward the display screen, and the smooth surface of the lenticular screen is coated with an antireflective material.

Abstract: An autostereoscopic display system wherein an interdigitated stereogram is generated and displayed on an electronic display. The display includes a lenticular screen over the surface of the display which allows the user to observe the stereogram on the display and obtain a true stereoscopic effect. In accord with the invention, the resolution of master images is minimized and then the pixels from the master images are mapped to form the interdigitated stereogram. The optimum minimization of the resolution is obtained when the ratio of horizontal resolution to vertical resolution for the master images approximates the screen aspect ratio of the display. In this way, less computation is involved in remapping the pixels to form an interdigitated stereogram.

Abstract: A stereoscopic photography system utilizes digital camera technology to create stereoscopic content. The camera has a photosensitive material optically aligned with a lens for capturing images, a viewfinder screen for viewing the images captured on the photosensitive material, and a zoom control for adjusting the focal length of the lens. An optical attachment is securely coupled to the camera lens in a manner that permits adjustment. The optical attachment causes a stereo pair of images to be focused through the lens onto the photosensitive material The camera is coupled to a processor having a first program for digitizing the stereo pair of images and a second program for transforming the digitized stereo pair of images into a predefined format. The transformed images are displayed on a monitor and observed through either a modulating overlay screen or modulating eyewear.

Abstract: An alternating unipolar carrier waveform is used to drive a pi-cell modulator. The pi-cell is driven by the carrier, but the carrier never changes polarity within the time period that the cell is energized. However, each time the cell is energized, i.e., once per field, the polarity alternates.

Abstract: A color organ is realized through software programming. Audio signals are input to a microprocessor-based controller. The controller then correlates an object to each audio signal on the basis of selected waveform characteristics. The object is then rendered for display on an electronic display. The display may be autostereoscopic, or it may be viewed through a stereoscopic selection device.

Abstract: An electronic stereoscope displays field-sequential stereoscopic images on a display screen at a predetermined field rate. The images are viewed through left and right electro-optical shutters driven out of phase with each other and synchronously with the field rate. Left and right lenses are also provided in correspondence with the left and right shutters to accommodate and converge the user's eyes on the display screen.