Abstract: A light integrator in a first aspect, comprises:an elongated tapered solid core having first and second ends and an elongated surface therebetween, down which a decreasing total proportion of light can propagate by total internal reflection at the elongated surface;a layer of reflective material positioned adjacent at least a portion of the elongated surface, which reflective layer is of a first material having sufficient porosity, with pores which are vacant or contain a second material having an index of refraction lower than that of the core, such that the layer reduces total internal reflection in the core less than it would be reduced using a non-porous layer of the same dimensions of only the first material; andfirst and second light ports defined by regions of the core not covered by the reflective material, positioned such that light can pass through the first port, propagate down the core by total internal reflection at the elongated surface, while an increasing total proportion passes through the el

Abstract: A system and method that generates computer graphic images using anti-aliasing rendering to create sets of offset images each of a lower resolution than the resolution desired. The anti-aliasing rendering is performed using offset weights that effectively cause a graphic model to be rendered at different rendering points for each low resolution image which are offset between low resolution images. The lower resolution offset images are then interlaced or combined to produce the desired high resolution image.

Abstract: A method for making large format lenticular 3-D images by enlarging a smaller source image utilizes an optical enlarger that is calibrated by forming a first reference image pattern from a first piece of lenticular material having the same pitch as a second piece of lenticular material, and a second reference image comprising lines having a pitch corresponding to the spacing between the same views of the source image. The source image is derived by photographing an original scene from different views taken from spaced apart positions. The first reference image is positioned at a copy plane and the second reference image is positioned at the source plane. The relative orientation of the reference images are adjusted to provide a Moire pattern that achieves desired spacing and parallelism. With the adjustment of the enlarger optics completed, the source image is positioned at the source plane and an enlargement is made at the copy plane.

Abstract: The present invention is a system and method that performs a scaling and thresholding operation or a scaling and halftoning operation for each pixel from an image sensor in a single step. The system creates, depending on a mode selected, scaled threshold values or scaled dither matrix values from the scan of a reference document and a predetermined threshold or a predetermined dither matrix. The values are loaded into a single memory. The output of the memory is supplied to a comparator which compares the pixel data from the scanner sensor to the scaled threshold values or the scaled dither matrix values. The serial output of the comparator is converted into parallel data and stored for further processing.

Abstract: A method is disclosed of operating on a stored digital image produced by scanning the photographic element to smooth film-grain noise. The method includes extracting and storing a set of statistics of the grain pattern of the film type carrying the image, such statistics being representative of local, spatial, and spectral properties of a photographic grain pattern of that type of film; and using the stored set of statistics to operate upon the stored digital image to change such stored digital image so as to smooth film-grain noise when an image is produced.

Abstract: An integral image element, comprising:an integral lens sheet with opposed front and back surfaces, the front surface carrying convex surfaces of a plurality of lens elements;an integral image positioned behind the back surface; anda non-specular reflective layer positioned behind the integral image which layer reflects more than 80% of visible light reaching the reflective layer from in front of the layer, before penetrating the reflective layer a distance of 10 microns.A method of making the foregoing type of integral image element is also provided.

Abstract: This invention provides a method for transforming an input color space to an output color space where each of a plurality of specified colors and/or color regions are constrained to be transformed by any one of a plurality of explicitly specified color calibration or color enhancement strategies. The method involves a two step process: 1) constraints are applied to some subset of the points in the input color space explicitly specifying the transform into the output color space; 2) the reminder of the points are then transformed by a mapping strategy which preserves color continuity. The mapping strategy used in the preferred embodiment is based on a computer graphics geometric morphing technique. In the preferred embodiment, multi-dimensional look-up tables are used to implement the color transformation.

Abstract: An improved stereoscopic picture, comprising:(a) a lenticular faceplate material having a predetermined number of lenticules, the lenticules having a given pitch and a given subtended primary angle; and(b) a photographic receiver mounted on the lenticular faceplate material and on which are recorded sets of right and left perspective views of a first pair of stereoscopic pictures, the lenticular faceplate material and the photographic receiver being aligned so that each set on the photographic receiver corresponds to an associated given lenticule of the lenticular faceplate material, the width of the sets of right and left perspective views being less than the pitch of the lenticules.

Abstract: A color reversal photographic element comprises a support bearing a red-sensitive, cyan dye-forming unit, a green-sensitive, magenta dye-forming unit, and a blue-sensitive, yellow dye-forming unit, each unit comprising a photosensitive silver halide layer and an image-dye forming coupler; the element contains an interimage effect-controlling means which is characterized as having the capability of simultaneously forming a red image of high relative chroma and a yellow-red tint image of substantially lower relative chroma when the element is exposed to a red color standard object having CIELab values for D.sub.55 reference white a*=30.46, b*=19.16, C*=35.98, L*=40.12 and a yellow-red tint color standard object having CIELab values for D.sub.55 reference white a*=17.26, b*=18.01, C*=24.95, L*=66.98; the resulting images have a red reproduction coefficient equal to or greater than 0.88 and a ratio of red reproduction coefficient to yellow-red tint reproduction coefficient equal to or greater than 1.15.

Abstract: A method and apparatus for controlling the positioning of a filmstrip in a film scanning gate using signal states derived from a pair of spaced film sprocket holes or perforation ("perf") sensors on either side of the film scanning gate in conjunction with line scan counts and filmstrip drive, stepper motor half-step counts. The filmstrip is advanced by the stepper motor in a pre-scan operation through the film scanning gate for line scanning the image frames at a low resolution and advanced in the reverse direction back into the film scanning gate for high resolution scanning in a main-scan operation. A line scan array of line scan counts and half-step counts as well as first and second perf arrays of half-step counts and perf sensor states are generated in the pre-scan operation. Image frame borders are located in the pre-scan operation as border line scan counts and correlated in the line scan array to the half step counts to go to in the main-scan.

Abstract: A color reversal element having a red sensitive layer containing a cyan dye forming coupler, a green sensitive layer containing a magenta dye forming coupler, and a blue sensitive layer containing a yellow dye forming coupler, the red, green and blue sensitive layers each having a speed .gtoreq.120 as measured at a density of 0.3, a Dmax of .gtoreq.3.30 and a .increment.logE .ltoreq.1.85 measured from a density of 0.20 to 3.20, the Dmax and .increment.logE being measured following exposure and processing of the element. Daylight and tungsten balanced versions of the film are also provided. A method for processing such films and exposing them in electronic film writers is also provided. Film of the present invention allows a wide range of density values in an original film to be more faithfully reproduced and enable more faithful reproduction of colors recorded in the original scanned film.

Abstract: A color reversal photographic element having a light sensitive silver halide emulsion layer, and a second layer containing a light insensitive silver halide emulsion. The element additionally has a bleach accelerating releasing compound in the second layer or in a layer associated therewith. A method of processing such elements is also provided.

Abstract: Apparatus for automatically inserting 35 mm photographic slides into a slide scanning gate in the scanning station of a film scanner, scanning the slide, and ejecting the slides on completion of scanning. A vertical mount in the film scanner housing receives a rotatable slide tray having customer orders in selected tray slots to present each selected slide into alignment laterally in a horizontal plane with the film scanning gate. A load arm is actuated to load the slide from the tray slot into the scanning gate. The scanning gate accepts slides in mounts of varying size and thickness and centers the slide film image frame in alignment with a film scanning plane in the scanning station. The scanning gate is translated in the scanning station out of the load position for low and high resolution scans and returned to the load position.

Abstract: An apparatus and method of creating depth images with different depth image scenes being projected at different viewer orientations. At each of the orientations a different perspective series is provided to the viewer. To provide the different depth scenes at the different orientations, different depth content image slices of different depth content scenes are interleaved behind lenticules of a lenticular faceplate. The interleaving of different depth content scenes on an imaging substrate is accomplished by writing to a print file depth images of the different depth content scenes in successive positions prior to driving the printer with the print file contents to record on the substrate. The substrate is then attached to the lenticular faceplate.

Abstract: This invention provides a method for mapping an input color space to an output color space in such a way that the color reproduction characteristics of the saturated colors can be adjusted in a custom manner, while maintaining the desired tone reproduction on the neutral axis. This is accomplished by defining independently a tone transformation and a transformation for a plurality of highly saturated colors. A transformation is formed for the remaining color values having the specified transforms for the neutral and saturated colors as boundary values. In the preferred embodiment multi-dimensional look-up tables are used to implement the transform.

Abstract: A depth image is generated from a pair of stereo images by means of a disparity vector field-based digital image processing methodology. Specifically, images corresponding to missing angular views are derived from the stereo image pair based upon an iteratively refined set of disparity vector fields that associate desired missing image locations with the pair of stereo images. For a reduced angular separation between the optically recorded pair of stereo images, the stereo images are employed as the images corresponding to intermediate angular viewing locations, and images corresponding to missing angular views are reconstructed by either digitally interpolating or digitally extrapolating the stereo image pair, depending on whether or not the missing angular view is between the angular views of the stereo image pair or outside the angular views of the stereo image pair. The missing images are then interlaced with the images of the stereo to derive the depth image.

Abstract: A photographic materials with a high silver chloride red sensitive layer which has a high sensitivity and exhibits reduced thermal sensitivity. In particular the material has a silver halide emulsion of at least 90% silver chloride and compounds of formula I and II below: ##STR1## Where A, Z, X1, X2, R1, R2, W1-W12, D, G1, G2, Y1, Y2 are as defined in the specification.

Abstract: A photographic element with a silver halide emulsion having a maximum sensitivity in the visible region at less than 480 nm and being sensitized by a dye of formula (I): ##STR1## wherein: X.sub.1 and X.sub.2 each independently represent S, Se or O; R.sub.1 and R.sub.2 are, independently, an alkyl group; Z represents an aromatic group or heteroaromatic group that is directly appended to the benzene ring shown or is attached through a linking group provided that the atoms of the linking group are sp.sup.2 hybridized, or Z can be a fused aromatic ring group; the benzene rings shown can be further substituted or unsubstituted, and; A' is one or more ions as needed to balance the charge on the molecule.

Abstract: The present invention relates to polymethine spectral sensitising dyes comprising at least one intracyclic thioether function macrocycle.These special sensitising dyes may be used in silver halide photographic products.These spectral sensitising dyes improve the sensitivity of the photographic products whilst reducing the residual dye stain.

Abstract: An ultraviolet absorbing compound of formula (I) below, and photographic elements containing such a compound as an ultraviolet absorber: ##STR1## wherein: R.sub.4 is H or an alkyl group, and the benzo or phenyl ring shown may be further substituted or unsubstituted;X is --C(O)O-- wherein the carbonyl carbon is bonded to the N of NR.sub.4, or X is --SO.sub.2 --;L is a bivalent linking group;p is 0 or 1;A* is an alkyl group having an asymmetric carbon or silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon of A*.