Abstract: The present invention provides a projection display apparatus realizing improved operability at the time of registration adjustment irrespective of a use situation of the apparatus. In the case where misregistration occurs between primary color lights, video signals for three colors are corrected (registration adjustment is performed) so as to reduce the misregistration in accordance with an input adjustment value. An image inverting process is performed on an input video signal so that the image is inverted in a display screen. By a configuration by the user, the image is properly inverted in the display screen. When the image inverting process is performed, an adjustment value, with a sign different from that in the misregistration direction in a coordinate system where the image is not inverted, is input by an operation on the display screen.

Abstract: A projector includes a projection unit, an imaging unit, a correction control unit acquiring first correction information based on a first captured image acquired by capturing a distortion detection image projected onto a projection surface, and a distortion correction unit performing distortion correction based on the first correction information.

Abstract: A computer implemented method for utilizing a plurality of self-activating display shaping devices to provide shape adjustment information for a digital image projected on a display is disclosed. In one embodiment, the plurality of display shaping devices are automatically activated, the plurality of display shaping devices defining a desired digital image shape for a display. In addition, the plurality of display shaping devices is utilized to identify an actual projected digital image shape. The actual projected digital image shape is then compared with the desired digital image shape for the display. Correction information is then provided for adjusting the actual projected digital image shape to approximate the desired digital image shape for the display.

Abstract: A projector device that generates a projection image, photographs this projection image and performs various adjustments to the projection image.

Abstract: An apparatus and method for reducing the visibility of speckle in coherent light comprises propagating the coherent light through a multimode optical waveguide 106 to reduce a coherence length of the coherent light by intermodal dispersion. A vibratable membrane mirror 104 is arranged to reflect the coherent light either before or after passing through the multimode optical fibre further to reduce the coherence length by distributing wave packets across different propagating modes and to erase the modal structure by averaging the distribution of energy across the modes leading to a more uniform illumination. The invention may be used for speckle removal in a laser scanning projector.

Abstract: Methods and apparatus for projecting a tangible image of data characterizing an object onto a surface of the object itself. Three-dimensional measurements of the object are obtained, the measurements are processed for projection, and a tangible image is projected onto the object, the image conveying information based on the three-dimensional measurements. The image may be projected concurrently with performance of measurements. In an exemplary dental context, information derived in part from three-dimensional measurements of a tooth or replica may be projected onto the actual tooth or replica. In interactive application, a work piece is be measured during the course of fabrication, and three-dimensional information, derived from contemporaneous non-contact measurement, is projected onto the work piece in order to direct the user with the formation of the work piece.

Abstract: A projector includes a light source, a light modulator that modulates the light flux emitted from the light source in accordance with an image signal to form image light, a projection optical apparatus that enlarges and projects the image light, a reflection section having a reflection surface disposed along the direction in which the projection optical apparatus outputs the image light, the reflection surface reflecting the image light, and an adjustment section that adjusts the inclination angle of the reflection section with respect to the direction in which the image light travels.

Abstract: An image processing device adapted to correct distortion of an image projected on a projection screen with projection light emitted from a projector includes a detection section adapted to detect at least one of display positions of a plurality of predetermined figures displayed in a correction image projected by the projector on the projection screen, the plurality of figures arranged at densities varying in accordance with an incident condition of projection light to the projection screen, a distortion correction information generation section adapted to generate distortion correction information based on the display position detected and correction image data representing the correction image, an acquisition section adapted to acquire image data representing the image to be projected on the projection screen, and a distortion correction section adapted to execute a distortion correction process using the distortion correction information on the image data acquired.

Abstract: A projection system uses a transformation matrix to transform a projection image p in such a manner so as to compensate for surface irregularities on a projection surface. The transformation matrix makes use of properties of light transport relating a projector to a camera. A display pipeline of user-supplied image modification processing modules are reduced by first representing the processing modules as multiple, individual matrix operations. All the matrix operations are then combined with, i.e., multiplied to, the transformation matrix to create a modified transformation matrix. The created transformation matrix is then used in place of the original transformation matrix to simultaneously achieve both image transformation and any pre and post image processing defined by the image modification processing modules.

Abstract: Embodiments include systems and methods for reducing visible artifacts such as Moiré, or interference, patterns, in displays. One embodiment includes a display device comprising a plurality of light modulators and a plurality of illumination elements configured to direct light to the light modulators. The directed light of the plurality of illumination elements collectively defines an nonuniformly varying pattern of light.

Abstract: A beam projection apparatus and method with automatic image adjustment. A beam projection apparatus includes an actuator module being operable to move the beam projection apparatus, a beam projector being operable to project images, and a control module being operable to search surrounding structures around the beam projection apparatus and select a plane portion of the surrounding structures as a screen, to control the actuator module to move the beam projection apparatus for image display on the selected plane portion, and to control the beam projector to project the images on the selected plane portion.

Abstract: A combination display is provided. The combination display includes a front projector and a direct-view screen having a shared video processing system.

Abstract: According to an embodiment, a color is projected onto a surface. An estimate of the surface color is processed and a projection color is selected as a function of the surface color estimate and a chosen color so that the projection color yields the chosen color or a color substantially similar to the chosen color when projected onto the surface. The projection color can then be projected onto the surface for display.

Abstract: A high-resolution image is generated using multiple spatially offset lower-resolution digital micro-mirror device (DMD) panels. Multiple lower-resolution subframe signals for controlling the spatial light modulators are generated from a high-resolution image signal using a resolution reduction and interpolation algorithm. The spatial light modulators under control of the subframe signals are illuminated by a light source and light beams reflected from the spatial light modulators are combined and directed onto a screen for display.

Abstract: A method and system of projecting images with high degrees of image offset while limiting the physical offset of the projection lens elements. The methods and systems provided limit the displacement of the optical elements relative to the optical axis of the display panel and enable a very thin, efficient projector.

Abstract: A projection apparatus for projecting an input image onto the projection surface includes a correction unit configured to correct distortion of an image to be displayed on the projection surface, a projection unit configured to project an image corrected by the correction unit, a communication unit configured to communicate with an external imaging apparatus, and a control unit configured to control the correction unit, wherein the control unit transmits distortion information concerning distortion of an image to be displayed on the projection surface to the imaging apparatus via the communication unit.

Abstract: A system and method for projecting coherent (e.g., laser) light imagery onto an interior surface of a 3-dimensional projection surface is provided. In some aspects, there is provided a coherent light source, which may comprise more than one wavelength (color) component such as red, green and blue laser sources. In some aspects, one or more light component is directed through optical elements within the system so as to modulate the source light with image data or information by way of a microdisplay apparatus. In addition, the coherent light rays are reflected or redirected as needed by optical lens assemblies, which can include positive lens elements, negative lens elements, mirrors, and/or prisms. The rays move from their source to the microdisplay and on through the various optical assemblies towards the surface of the projection screen. In some aspects, the rays move through the system with little or no ray crossing because of the simplicity of the construction of the same.

Abstract: Methods, systems, and computer-readable media for generating a projected image are provided. Movement measurements are received from an accelerometer within a projection device. A determination is made as to whether the movement measurements indicate movement of the projection device. Upon determining that the movement measurements indicate movement of the projection device, a movement correction factor is determined based on the movement measurements to compensate for the movement of the projection device. The projection device is caused to generate a projected image according to the movement correction factor.

Abstract: A projector for acquiring a coordinate of a bright spot includes a half transparent and half reflecting mirror (22), an imaging device (24), and a processing system (25). The half transparent and half reflecting mirror (22) is provided on a light path between the light source (21) and the zooming system (23). The imaging device (24) captures an external light ray reflected by the half transparent and half reflecting mirror (22). The processing system (25) acquires the coordinate of the bright spot according to the image of the image of the bright spot captured by the imaging device.

Abstract: An image processing system includes a determination unit that determines a distortion state of a projected image, and a correction unit that performs distortion correction of the image according to the distortion state, wherein the correction unit performs distortion correction calculation using either an intersection point of diagonal lines of the image after distortion correction in a display area of an optical modulator or a center of gravity of the image as the origin.

Abstract: A screen having a display angle of 360°, wherein in the light path of a projection means and in the area of the central axis of a projection surface closed about 360° formed by a pillar a mirror is located, wherein the mirror is configured as a spherical mirror.

Abstract: An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.

Abstract: A projector that projects video light corresponding to an image signal onto a display surface includes: a light source device that emits light; a housing that houses at least the light source device; a projection lens, that is, an optical element that transmits the video light projected onto the display surface and emits the video light toward the outside of the housing; a detecting unit that detects detection light supplied to the optical element; and a control unit that adjusts a light amount of the video light on the basis of a result of the detection by the detecting unit. The projector is set such that, when the optical element is in a normal setting state, the light amount density of the video light is equal to or lower than a predetermined value on an emission surface for emitting the video light of the optical element.

Abstract: An adjustable display board system comprises a display board, first and second grippers, first and second racks, and a handle. The first and second grippers are coupled to the display and include a plurality of teeth. The first and second racks are mounted to a rigid structure and include a plurality of teeth generally greater than the number of teeth of the first and second grippers. The teeth of the first and second grippers mesh with the teeth of the first and second racks to maintain the vertical position of the display board. The handle is pushed to disengage the grippers from the racks and allow vertical motion of the display board. The adjustable display board system also comprises a display board, a linear actuator unit, and one or more pivot arms. The linear actuator unit includes a movable actuator rod and is coupled to the one or more pivot arms, which in turn is coupled to the display board. Motion of the actuator rod is converted to raising and lowering of the display board.

Abstract: The image projection apparatus includes a light modulating element modulating light according to an image signal, a correcting part performing correction processing on the image signal to decrease geometric distortion in a projection image by using correction data, a memory storing first correction data corresponding to interchangeable optical units, and a controller acquiring identification information of the interchangeable optical unit attached to the apparatus, reading the first correction data corresponding to the acquired identification information from the memory, and setting the read first correction data as the correction data for the correction processing. The controller acquires, when no first correction data corresponding to the acquired identification information is stored in the memory, second correction data stored in a memory in the attached interchangeable optical unit, and sets the acquired second correction data as the correction data for the correction processing.

Abstract: A method for calculating a position adjustment amount of projected image includes a first image step of obtaining first image data which is obtained by an image capturing device imaging first feature points which are displayed using light modulated by a first light modulation device, a second imaging step of obtaining second image data which is obtained by the image capturing device imaging a second feature point which is displayed using light modulated by a second light modulation device, an adjustment amount calculation step of calculating an adjustment amount based on the first image data and the second image data.

Abstract: A display position control device for projection image which controls a display position of a projection image displayed on a projection surface includes: a display position adjustment control unit which divides display position shift amount from a display target position of the projection image on the projection surface into a value an integer number times larger than a pixel pitch of the projection image and a value smaller than the pixel pitch; a display position control processing unit which performs display position control through image processing based on the value the integer number times larger than the pixel pitch; and a display position control mechanism which performs optical display position control based on the value smaller than the pixel pitch.

Abstract: A lightweight, compact image projection module has a laser package having a common exit port, and a plurality of lasers mounted in the package and operative for emitting a plurality of laser beams of different wavelengths through the common exit port. An optical assembly focuses the laser beams exiting the common exit port, and includes a common focusing lens through which the laser beams pass along respective paths that are in angular misalignment. An optical corrector element in at least one of the paths corrects the misalignment to produce aligned beams. A scanner sweeps the aligned beams in a pattern of scan lines, each scan line having a number of pixels. A controller causes selected pixels to be illuminated, and rendered visible, by the aligned beams to produce the image.

Abstract: Provided is a display method used for a display device that displays a design image and a pickup image in a superimposing manner, including: a distortion correction process of correcting distortion of the pickup image; an alignment process of aligning a position of the design image and a position of the pickup image; and a display process of displaying the design image and the pickup image in the superimposing manner. In the distortion correction process, the distortion of the pickup image is corrected so that a quadrangle formed by connecting four points on the pickup image becomes a rectangle in parallel with a vertical axis and a horizontal axis, the four points specified on the pickup image corresponding to four points on the design image which are connected to form a rectangle in parallel with the vertical axis and the horizontal axis.

Abstract: A projector includes a projection section which projects a calibration image onto a projection target through a projection panel, a shape determination section which determines a shape of the projection target, a correction target area setting section which sets a correction target area, an aspect ratio calculation section which calculates an aspect ratio of the correction target area, a determination section which determines whether or not a value which indicates a difference between the aspect ratio of the correction target area and a reference aspect ratio satisfies a set condition, and an image generation section which generates an image having the shape of the correction target area on the projection panel when the set condition is satisfied, and generates an image having the reference aspect ratio on the projection panel when the set condition is not satisfied.

Abstract: There are provided a write light valve for generating image-writing light by modulating write light, a driver for writing images into the write light valve based on image data, read light valves for each color for generating respective color image lights by modulating each received color illumination light, an imaging lens group for guiding the image-writing light emitted from the write light valve to the respective read light valves, a dichroic cube for combining together color image lights emitted from the respective read light valves, a projection lens for projecting each color image light combined together. The imaging lens group has a distortion aberration which reduces or cancels out a distortion aberration of the projection lens.

Abstract: An apparatus and method of reducing speckle in projection of images is provided that includes the elements or features of producing a first image and displacing the first image to produce a second image that will reduce speckle relating to the first image when the first image and the second image are displayed on a display medium.

Abstract: A theft preventing system easy to operate and capable of implementing countermeasures to theft of a projection type image display device is provided. The projection type image display device is equipped with a unit for detecting a used condition of the device and a unit for registering a used condition of the device. By further equipping the device with a unit for inhibiting normal operations of the device in its used condition other than the registered condition, a simple and easy-to-operate unauthorized use preventing system can be realized and thus protection of the device against theft can be attained.

Abstract: Method and apparatus for display image adjustment is described. More particularly, handles associated with polygon vertices of a polygon rendered image are provided as a graphical user interface (GUI). These handles may be selected and moved by a user with a cursor pointing device to adjust a displayed image for keystoning, among other types of distortion. This GUI allows a user to adjust a projected image for position of a projector with respect to imaging surface, as well as for imaging surface contour, where such contour may be at least substantially planar, cylindrical, or spherical and where such contour may comprise multiple imaging surfaces. This advantageously may be done without special optics or special equipment. An original image is used as texture for rendering polygons, where the image is applied to the rendered polygons.

Abstract: An image processing device for a projector including an image formation section that emits light of an image, and a projection system that projects the emitted light onto a projection surface. The image processing device has a distortion correction technique for images displayed on the projection surface. The image processing device has a target display area determination section that determines, in a display area serving as a reference on the projection surface, based on a current value of a parameter, any of target display areas set for values possibly taken by the parameter within an allowable range to be targeted on a distortion-free image for display on the projection surface; a reference formation area determination section that determines a reference formation area to be formed with a virtual distorted image and a correction application section that generates corrected image data for supply to the image formation section.

Abstract: A projector system is provided with at least one projector mobile in a specified space and adapted to project a video to a projection area included in the specified space in accordance with inputted video information, a plurality of position sensors each including a position detecting section for detecting a positional relationship of the projector with the projection area and arranged in a specified positional relationship with the specified space, and a controller for controlling a video to be projected from the projector to the projection area based on detection results by the position detecting sections of the plurality of position sensors.

Abstract: A projector includes a projection section which projects a calibration image onto a projection target through a projection panel, a shape determination section which determines a shape of the projection target, a correction target area setting section which sets a correction target area, an aspect ratio calculation section which calculates an aspect ratio of the correction target area, a determination section which determines whether or not a value which indicates a difference between the aspect ratio of the correction target area and a reference aspect ratio satisfies a set condition, and an image generation section which generates an image having the shape of the correction target area on the projection panel when the set condition is satisfied, and generates an image having the reference aspect ratio on the projection panel when the set condition is not satisfied.

Abstract: A projection type image display apparatus includes an image display element, and a projection optical unit, which is configured to project an image displayed on the image display element, enlargedly, upon a screen. The projection optical unit includes a lens group, which is configured to compensate an distortion on an image surface on the screen, a mirror for compensating a trapezoidal distortion on the screen. The mirror reflects lights emitted from the lens group, so as to project upon the screen obliquely.

Abstract: Embodiments include a method and apparatus for projecting a panoramic image, the method including steps of generating an image on an image generation surface, and then projecting the generated image on a projection surface to obtain a panoramic projected image, the points of the generated image being projected on the projection surface according to a non uniform distribution determined as a function of at least one parameter of a set comprising the shape of the generated image, the shape of the projection surface, and the position of an observation point of the projected image, in relation to the projection surface.

Abstract: A rear projection display includes a projector for projecting light from a light source as an optical image, an exterior cabinet for enclosing the projector, a projection screen provided for the exterior cabinet on which the optical image is projected, and two or more optical sensors provided in a region where the optical image is projected from the projector other than an image display region.

Abstract: An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.

Abstract: A projection lens unit and a projection mirror unit are moved relative to an illumination optical system, between a first position where an image is projected in a shape that is longer along a direction of projection onto a projection plane and a second position where an image is projected in a shape that is longer along a direction perpendicular to the direction of projection onto the projection plane. When the projection lens unit and the projection mirror unit are located in the first position, a vertically long image is projected onto the projection plane (portrait display). In this state, when the projection lens unit and the projection mirror unit are moved to the second position, a horizontally long image is projected onto the projection plane (landscape display).

Abstract: A video projector includes a laser projection unit that has linear-polarization short-wavelength laser light sources and emits laser lights from the laser light sources, a lens system that collects the laser lights from the laser projection unit, a liquid crystal cell that spatially modulates the collected laser lights, a camera shake correcting optical system that is capable of translating vertically and horizontally on a plane that is perpendicular to the optical axis of the laser projection unit, a prism that transmits the laser lights from the liquid crystal cell and branches the light reflected by the screen, and a camera device that can observe or capture the video image that is branched by the prism. The present invention provides a video projector that can prevent the camera shake and can be held in hands.

Abstract: Non-rigidly coupled, overlapping, non-feedback optical systems for spatial filtering of Fourier transform optical patterns and image shape characterization comprises a first optical subsystem that includes a lens for focusing a polarized, coherent beam to a focal point, an image input device that spatially modulates phase positioned between the lens and the focal point, and a spatial filter at the Fourier transform pattern, and a second optical subsystem overlapping the first optical subsystem includes a projection lens and a detector. The second optical subsystem is optically coupled to the first optical subsystem.

Abstract: A projector includes a lighting optical system for emitting a lighting beam, a color separation/light guiding optical system for separating the lighting beam from the lighting optical system into optical paths for three colored light beams, a light modulation device provided for each of the colored light beams and for modulating the light beam, which is separated and guided to the optical path for each of the colored light beams by the color separation/light guiding optical system, in accordance with image information, a light beam combining optical system for combining the colored light beams each modulated by the light modulation device for each of the colored light beams, and a projection optical system for projecting the light beams output via the light beam combining optical system.

Abstract: A method of inhibiting a subject's eyes from being exposed to projected light when the subject is positioned in front of a background on which an image is displayed comprises capturing at least one image of the background including the displayed image, processing the captured image to detect the existence of the subject and to locate generally the subject and masking image data used by the projector to project the image corresponding to a region that encompasses at least the subject's eyes.

Abstract: An image display device of the present invention comprises projectors, a reflecting mirror, a screen, an image signal processor which performs a distortion correction, and a base for supporting the projectors, the reflecting mirror, and the screen. The projectors, reflecting mirror, and screen are assembled in one to constitute a single moving unit, and the image display device further comprises a lifting device capable of moving the moving unit in a vertical direction with respect to the base.

Abstract: A projector includes a lighting device, a first image forming unit including first through third light modulation elements, a second image forming unit including fourth through sixth light modulation elements, a polarization combining optical system, a projection optical system, and an image correction device, wherein the image correction device, based on one of combined transmittance and combined reflectance obtained by combining one of transmittances and reflectances corresponding to gray-scale values of two of the first through sixth light modulation elements for modulating the same colored light beam, outputs the drive value corresponding to the input image data for driving the two light modulation elements corresponding to the predetermined colored light beam.

Abstract: An image display system includes: an information processing apparatus that performs a predetermined image correcting process on image data; an image display apparatus that displays an image on the basis of the image data corrected by the information processing apparatus; and a signal transmitting member that connects the information processing apparatus and the image display apparatus and transmits signals therebetween. The information processing apparatus includes: a first image correction processing unit that performs a predetermined image correcting process on the image data; and a transmission data generating unit that compresses the image data corrected by the first image correction processing unit to generate transmission data to be transmitted to the image display apparatus through the signal transmitting member.

Abstract: A scanning projection apparatus for displaying image comprises a light source for generating a light beam, a beam scanner which deflects the light beam to project a two dimensional image field, a modulation means for modulating the intensity of the light beam, and a sensor to detect the scanned light beam. The light source may consist of a plurality of semiconductor lasers and/or solid state lasers to generate light beams with wavelengths of red, green and blue colors aligned into a single light path. The image field is divided into an active image field for displaying image and a dark field in the perimeter of the image field wherein the light beam is switched off to reduce inherent image defects.