Abstract: The present invention provides an image display device which detects projection region suitable for performing a display of an image and displays an image on the detected projection region. The present invention provides an image display device which displays an image on a projection surface by projecting light on the projection surface. The image display device includes an aptitude detection part which detects an aptitude as the projection surface, and a projection control part which controls projection light such that the an image to be displayed on the projection surface falls within a predetermined projection region in response to a detection result by the aptitude detection part.

Abstract: Aspects of the present invention include systems and methods for obtaining a light transport between a projector and a camera. In embodiments, the light transport between the projector and the camera is represented as a matrix and is obtained assuming that the projector displays on a surface that is planar or at least substantially planar. The light transport matrix is obtained by finding a homography between the projector and the camera. Using the homography to correlate camera and projector pixels and using color values in a captured solid color image, the light transport matrix can be obtained. In embodiments, at least an approximation of an inverse light transport matrix can also be computed, which is useful for many applications, such as inferring unknown projector images.

Abstract: Three or more projectors project their respective images to form a composite image. In some cases all three projected images overlap. In order to compensate for distortions in this overlap, blending values are assigned to the projector pixels that contribute to the overlap regions. Pixels that contribute to the overlap of two projectors are assigned a blending value associated with this projector pair. Pixels that contribute to the overlap of three projectors are assigned a blending value that is the greater of the two blending values associated with the two projector pairs, after such blending value has been scaled.

Abstract: A rear projection imaging system with an image warping distortion correction system using a camera and processing unit to generate a warping map that corrects for image distortion. The warping map is generated in an iterative process by displaying a known pattern on a viewing screen and, through the use of a camera, having a microprocessor determine the location and shape of the pattern on the screen. The microprocessor then compares the displayed image to the original reference image, calculates the distortion effects present in the projection optics, and generates a warping map.

Abstract: A multi-screen display apparatus is a multi-screen display apparatus in which screens of a master apparatus and slave apparatuses are arranged. Each of the master apparatus and the slave apparatuses includes a light source for three primary colors formed of a semiconductor light emitting element, and a memory circuit for storing a brightness corresponding to a control current that is specific to each of the primary colors of the light source. The master apparatus determines a common target brightness based on the brightness outputtable by the master apparatus itself and the brightnesses outputtable by other apparatuses. Each of the master apparatus and the slave apparatuses reads, as a target control current, the control current corresponding to the target brightness from the memory circuit, and supplies the target control current to the light source.

Abstract: A projector includes a projecting unit that projects a calibration image containing a plurality of types of pattern images having different shapes, a storing unit that stores correction data showing a correction value for each of the pattern images, a selecting unit that receives selection of a pattern image selected by a user from the pattern images, and a correcting unit that corrects distortion of an image projected by the projecting unit based on the correction value corresponding to the selection.

Abstract: A method and system for optimizing a data structure for manipulation of matrices in a parallel environment limits computational branching. The data structure further is further optimized for linear data storage and synchronization among multiple processing threads.

Abstract: A calibration image including dots and scale points is projected at first and second display surfaces. A location of a scale point may be modified. A location for a registration point is determined and the registration point is added to the calibration image. The projected calibration image is captured. A location of the captured registration point and locations captured scale points are identified. Captured dots that are projected onto the first display surface and their locations are identified. Each of the captured dots identified as being projected onto the first display surface are mapped to a corresponding dot of the calibration image. Dots of the calibration image that are not projected onto the first display surface are identified, locations of each of the identified dots are determined, and a synthetic dot is added to the captured image for each identified dot. The captured image may be provided as input to a process for determining one or more inverse offsets.

Abstract: A projector comprises a projection unit, an image pickup unit, a control unit, and a correction unit. The projection unit is configured to project a video based on a video signal. The image pickup unit is configured to pick up an image of a projection video projected by the projection unit and output the picked-up image. The control unit is configured to determine a projection video projected by the other projector based on the picked-up image received from the image pickup unit. The correction unit is configured to carry out correction of the video signal so that the projection video projected by the projection unit is aligned with the projection video projected by the other projector.

Abstract: A high dynamic range scenographic image and video projection system and method involving the projection of an image of an object or collection of objects onto the object, 2D or 3D, in such a manner than projected image elements are positioned substantially on the actual image of the object. The projection enhances or otherwise alters the hue, contrast, brightness, saturation, luminance, and/or other visible features of the object. Visual and not-visual features may be projected onto the object or the area around the object to enhance or disguise the object as well as the surroundings of the object.

Abstract: A method having corresponding apparatus and computer-readable media comprises: receiving a first image, wherein the first image includes a plurality of substantially parallel first stripes, wherein the first image conforms to a virtual display space, wherein the virtual display space comprises a first plurality of first pixel locations; projecting the first image from a projector onto a surface, wherein the projector is described by a projector space comprising a second plurality of second pixel locations; capturing a second image of the first image projected onto the surface, wherein the second image conforms to the virtual display space; detecting edges of the first stripes based on the second image; generating second stripes based upon the edges of the first stripes; and determining a correspondence between each second pixel location and one or more of the first pixel locations based upon the second stripes.

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: The present invention provides a projection display apparatus realizing easy recognition of the effect of registration adjustment. The projection display apparatus includes: a light source; a spatial light modulation device modulating, on the basis of a video signal, each of primary color lights for color display emitted from the light source; projecting means for projecting, onto a screen, each of the primary color lights modulated by the spatial light modulation device; and correcting means for correcting, based on a given correction value, the video signal for each of the primary color lights so as to reduce misregistration between the primary color lights projected on the screen, and supplying the corrected video signal to the spatial light modulation device. Validation/invalidation of correction on the video signal by the correcting means is switched in accordance with an operation from the user.

Abstract: An image correction apparatus that corrects images displayed by a plurality of image display apparatus, the images arranged contiguously or superimposed is disclosed. The image correction apparatus includes a correction reference value generator that generates a correction reference value common to the plurality of image display apparatus based on display characteristics of each of the image correction apparatus that form the plurality of image display apparatus, and a correction data generator that generates correction data for each of the image display apparatus, the correction data used to correct pixel values with reference to the correction reference value.

Abstract: A projector includes: a projection lens which includes a zoom mechanism capable of controlling a projection view angle; a zoom drive unit which drives the zoom mechanism; a zoom amount storing unit which stores a zoom amount provided by the zoom drive unit; an operation signal receiving unit which receives a predetermined operation signal; and a zoom control unit which controls the zoom drive unit in such a manner as to set an initial zoom condition determined based on the zoom amount stored in the zoom amount storing unit when the operation signal receiving unit receives the predetermined operation signal.

Abstract: A projection display device has an imager that modulates light from a light source in accordance with an image signal, a projection optical system that enlarges and projects the light modulated by the imager onto a projection plane, a focus adjustment part disposed in the projection optical system, and a displacement part that displaces the imager in a direction vertical to a light axis of the projection optical system, in conjunction with the focus adjustment part.

Abstract: Described herein is processor for providing image data signalling to a projector. The provided image data signalling represents an image to be projected by the projector. The processor comprises both an input to receive movement signalling associated with movement of the projector, and an output configured to provide image data signalling to the projector. The processor is also configured to provide image data signalling to the projector based on received movement signalling.

Abstract: In a rear-projection TV system in which the image is generated by an optical engine and projected through a mirror towards a diffusion plate screen, picture quality adjustment is undertaken at the optical block level to reduce the distance between the adjustment device and screen and thereby improve production throughput in the dark room in which the adjustments are made.

Abstract: An image processor that corrects image signals corresponding to sub-pixels which form one pixel includes: a shift amount storage section that stores shift amounts of display positions of display sub-pixels corresponding to the sub-pixels which form a display pixel with respect to a predetermined reference position within a display image; and an image signal correcting section that corrects image signals corresponding to sub-pixels, which form each pixel of an input image, on the basis of the shift amounts stored in the shift amount storage section. The image signal correcting section corrects image signals in which dummy image signals corresponding to dummy sub-pixels, which are provided outside sub-pixels in an endmost portion of the input image, are added to input image signals of the sub-pixels.

Abstract: A projection apparatus comprises a receiver, a processor, and a frame projector. A sensor detects a horizontal position of a user in front of a screen and transmits a horizontal position signal. The receiver receives the horizontal position signal. The processor generates an on screen display (OSD), and superimposes the OSD onto a projection frame. The frame projector projects the superimposed frame onto the screen. During projection, the OSD covers the face of the user.

Abstract: A projector displays an image on a projection surface. The projector has a zoom adjusting module and a keystone correcting module. The zoom adjusting module adjusts zoom level of a zoom lens for enlarged projection of image light. The keystone correcting module corrects trapezoidal distortion of the image displayed on the projection surface by means of forming the effective panel image in a revised image formation area, the revised image formation area being part of the image formation area of the panel surface.

Abstract: In a rear-projection TV system in which the image is generated by an optical engine and projected through a mirror towards a diffusion plate screen, picture quality adjustment is undertaken at the optical block level to reduce the distance between the adjustment device and screen and thereby improve production throughput in the dark room in which the adjustments are made.

Abstract: An image projection kit and an imagery content distribution system and method. In one aspect, the invention is a method of distributing projection clip files and/or displaying imagery associated with projection clip files on an architecture comprising: a) storing a plurality of projection clip files on a server that is accessible via a wide area network; b) authenticating a user's identity prior to allowing downloading of projection clip files stored on the server; c) identifying the projection clip files downloaded by the authenticated user; and d) charging the user a fee for the projection clip files downloaded by the user.

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: An image projection apparatus includes an image processing device, an illuminating device, a light valve, and a projection optical system; wherein the projection optical system is formed in such a way that at least one of a first deviation corresponding to an amount of the magnification chromatic aberration of a light having a central wavelength of the red light relative to the green light and a second deviation corresponding to an amount of the magnification chromatic aberration of the blue light relative to the green light is larger than a fixed-pixel pitch, and a third deviation corresponding to an amount of the magnification chromatic aberration of a light having a maximum wavelength of the red light relative to a light having a minimum wavelength of the red light is not larger than the fixed-pixel pitch; wherein the first deviation and/or the second deviation is eliminated by supplying the compensated video signal to the light valve.

Abstract: A projector comprises a projection unit, an image pickup unit, a control unit, and a correction unit. The projection unit is configured to project a video based on a video signal. The image pickup unit is configured to pick up an image of a projection video projected by the projection unit and output the picked-up image. The control unit is configured to determine a projection video projected by the other projector based on the picked-up image received from the image pickup unit. The correction unit is configured to carry out correction of the video signal so that the projection video projected by the projection unit is aligned with the projection video projected by the other projector.

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

Abstract: In an image displaying apparatus, first and second detecting units detect quantities of light propagating through a light path at two different locations. A variation calculating unit calculates the variation in the light quantity in the light path based on the quantities of light detected by each of the first and second detecting units. A controlling unit controls the quantity of light propagated to the screen if the variation in the light quantity exceeds a predetermined value.

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: Provided is an apparatus and method for providing image-correction function in a projector. The apparatus includes an image-inputting module which receives a photographed image of a surface on which an image is to be projected; an image-analyzing module which analyzes an input state of the surface and calculates a color difference as a correction amount; an image-correcting module which applies the correction amount to the image projected onto the surface; and an image-projecting module which projects the corrected image onto the surface.

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: The dimensions of a viewing screen are altered to fit the aspect ratio of video being displayed on the viewing screen. A viewing screen includes screen covers which may be displaced horizontally along the viewing screen. If a different aspect ratio video is being displayed, the screen covers are moved horizontally to increase or decrease the viewing area of the viewing screen. The video is then optically resized and shifted to fit the height or width of the screen.

Abstract: A system (10) for multispectral imaging includes a first optical filter (24) having at least two passbands disposed in different spatial positions on the first optical filter, a second optical filter (20) having another at least two passbands, and processor (32) adapted to identify an intensity of light in the at least two passband of the second optical filter (20).

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: In at least one embodiment, a projector comprises a projection unit configured to project a video based on a video signal. An image pickup unit is configured to pick up an image of a projection video projected by the projection unit and output the picked-up image. A control unit is configured to determine a projection video projected by an other projector based on the picked-up image received from the image pickup unit. A keystone correction unit is configured to carry out keystone correction of the video signal so that the projection video projected by the projection unit is aligned with the projection video projected by the other projector.

Abstract: A focus evaluation value calculation unit acquires a captured image captured by an image capturing unit and then analyzes the image so as to calculate, as a focus evaluation value, a characteristic value that changes in accordance with the focus state of a video image adjusted by a focus adjustment unit. A focus evaluation value storage unit stores the focus evaluation value and a target value of a focus evaluation value. A focus state determination unit determines a display color of focus state information, which is shown as a graph with a color indicating the degree of focus. The focus state determination unit includes: a unit for calculating a change of the focus evaluation value; and a unit for determining the focus state information to be displayed by referring to a table that associates a combination of the change of the focus evaluation value, the focus evaluation value, and the target value with the display color of the focus state information.

Abstract: A deviation of an optic axis of a laser projector is detected, and the deviation is corrected. Laser projector's CPU executes: commanding a laser beam source of one color, out of laser beam sources of three colors, to emit a laser beam; shutting off the laser when sensing that the laser beam is received in a light-receiving region; applying a laser of a color to be detected as to the presence or absence of a deviation of the axis until its reception in the light-receiving region is sensed; keeping time starting when light reception in the light-receiving region is sensed and ending when light reception in a light-receiving region adjacent thereto is sensed; calculating a relative time difference of each of the colors with respect to a reference color; and correcting a light emission timing of the laser beam source of each of the color, based on the calculated time.

Abstract: A device and system which control a projector based on the DMX protocol includes a DMX signal receiving and processing circuit, an MCU microprocessor circuit, a DSP image processing circuit, a projection module device circuit, a DMX signal input port, a storage equipment port, an analogue video input port and a digital video input port. The DMX signal receiving and processing circuit includes the DMX signal input port, the MCU microprocessor circuit is connected with the DSP image processing circuit and the projection module device circuit, the DSP image processing circuit is connected with the storage equipment port, whereas the projection module device circuit is connected with the analogue video input port and the digital video input port. The device and system which control the projector based on the DMX protocol use standard DMX ports and are compatible with DMX ports of lighting equipment.

Abstract: The method included herein is an alternative energy wireless solar panel wind turbine communication server appliance node mechanism with built in communications server array, wireless energy and communications mechanism with protection, sharing, storage, accessing, authentication, battery management, certification, processing attachment and tracking mechanisms. The method and mechanism is utilized via networked servers, solar panels, and wireless electronic devices (online and offline) as well as mobile (wireless) communications devices built into one waterproof, temperature, controlled self sensing hardware package. The method and mechanism also works as part of a kilowatt hour banking system, and thermal passive solar control mechanism for living spaces.

Abstract: A method and apparatus for a projection display system includes a spatial light modulator and a volume illumination hologram. The spatial light modulator comprises a digital micromirror device, and the projection system includes a laser light source to produce a sequence of collimated, colored, light beams for the illumination hologram. Waste light produced by the spatial light modulator is transmitted to the illumination hologram, and the illumination hologram emits waste light from at least one of its edges. Waste light emitted from an edge of the illumination hologram is absorbed by a light sensor to control the intensity of the light beams. A projection focusing element is mounted proximate a side of the illumination hologram to focus the image beam from the spatial light modulator for viewing. A projection hologram is interposed between the side of the illumination hologram and the projection focusing element to manage waste light.

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 display apparatus for displaying color images on a screen by projecting each-color image beams modulated with a display device includes a memory storing correction data exhibiting a registration deviation amount on the screen; a displacement calculating unit calculating the registration deviation amount every one pixel of at least one-color signal based on the correction data stored in the memory; a correcting unit correcting the signal level of the one-color signal so that the signal level becomes in proportion to a brightness level on the screen; and a registration deviation correcting unit correcting the registration deviation of the one-color signal every one pixel by interpolation arithmetic processing of the color signal corrected with the correcting unit based on the registration deviation amount calculated with the displacement calculating unit, wherein the display device of the corresponding color is driven by the color signal corrected with the registration deviation correcting unit.

Abstract: The present disclosure generally relates to a rear projection system. The rear projection system may include a housing assembly configured to house at least a portion of a speaker system. The housing assembly may include a multi-function panel that is at least partially optically transmissive and includes an acoustically transparent portion. The rear projection system may further include a rear projection device positioned within the housing assembly and configured to project a graphical user interface onto an interior surface of the acoustically transparent portion of the multi-function panel. Other embodiments are also within the scope of the present disclosure.

Abstract: A method of calibrating a projection system is disclosed. The method includes determining a location of at least one hotspot on a screen within the projection system, initiating a calibration sequence of the projection system and ignoring the at least one hotspot during the calibration sequence of the projection system.

Abstract: Three or more projectors project their respective images to form a composite image. In some cases all three projected images overlap. In order to compensate for distortions in this overlap, blending values are assigned to the projector pixels that contribute to the overlap regions. Pixels that contribute to the overlap of two projectors are assigned a blending value associated with this projector pair. Pixels that contribute to the overlap of three projectors are assigned a blending value that is the greater of the two blending values associated with the two projector pairs, after such blending value has been scaled.

Abstract: A method for correcting a projection from a plurality of digital projectors is provided. The method includes receiving as an input a matrix which maps each pixel to be projected to a captured pixel that includes a row value and a column value and detecting a shift with respect row or column values in the matrix. The method further includes determining attributes of the shift, wherein the attributes include a type for the shift and an overlap length for the shift. A gradient length is determined from the overlap length. A gradient of pixel weightings is generated for each gradient length. The pixel weightings are uniformly sloping and are associated with pixels in the gradient length and neighboring pixels. Intersecting gradients re merged and a list that includes common points and diagonal points is created from the merging process. The method operations may be embodied as code on a computer readable storage medium.

Abstract: In general, in one aspect, an embodiment features computer-readable media embodying instructions executable by a computer to perform a method comprising: receiving a pixel for an image to be projected upon a display surface by a plurality of projectors as a composite projection comprising a plurality of partially overlapping component projections each generated by one of the projectors; and selectively increasing a luminance value of the pixel based on the luminance value of the pixel, a location of the pixel in the composite projection, a predetermined black-point threshold value, and a predetermined black-level compensation value.

Abstract: An image projection system (103) includes an image projector (104) and an image orientation device (106). The image orientation device (106) can be configured to cause a reference line (110) associated with an image (108) to remain aligned in a predetermined orientation on a projection surface (109) regardless of projection system motion. A second image orientation device (206) can be included as well. The second image orientation device (206) can be configured to cause portions of an image (208) to move with projection system motion while a reference line (210) remains stable.

Abstract: A projection apparatus adapted to be disposed on a surface and adapted to project an image frame onto the surface is provided. The projection apparatus includes a housing, an optical engine, a projection lens, a containing sink, an extension rod, and a curved surface reflection device. The optical engine is disposed in the housing, and capable of providing an image beam. The projection lens is disposed in the transmission path of the image beam. The containing sink is disposed on the housing and has a containing space. The extension rod is movably connected to the containing sink. The curved surface reflection device is pivotally connected to the extension rod. The extension rod and the curved surface reflection device are adapted to be contained in the containing space. The curved surface reflection device has a curved reflective surface capable of reflecting the image beam to the 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.