Abstract: A projected still or video image is controlled with light generated by a laser pointer, for example. A device with a projector and a display controller projects an image onto a surface, and an image sensor views the projected image. A handheld device outputs a beam of light. A controller receives information from the image sensor regarding the presence or movement of light from the handheld device interacting with the projected image on the surface, and a control function is implemented if the light from the handheld device interacts with the projected image in accordance with a stored predetermined visual interactions such as encircling, “scratching,” or other movements. The controller may be programmed to recognize light of a specific laser wavelength in conjunction with a control operation.

Abstract: A scan projection device and a controlling method are projected. The scan projection device comprises a light source module, a scanning module and a scan driving device. The light source module is for providing an image beam. The scanning module has a first direction scanning frequency and a second direction scanning frequency. The first direction scanning frequency is 2N+1 times of the second direction scanning frequency, wherein N is an integer. The scanning module is for projecting the image beam towards a particular direction and scanning a projection surface. The scan driving device controls the scanning module to scan the projection surface back and forth along a scan trace at the first direction scanning frequency and the second direction scanning frequency.

Abstract: The present disclosure is related to a method for calibrating a projector. The method includes receiving by a processing element one or more mapping images. After receiving the images, the method includes defining by the processing element a non-linear color mapping function, the color mapping function mapping pixels between the projector and a camera used to capture the mapping images. The method then includes determining by the processing element a compensation image using the color mapping function. The compensation image corresponds to an input image and takes into account variations in the surface onto which the input image is to be projected.

Abstract: A projection image area detecting device includes a projection image area detecting unit configured to detect marker image areas in a photographed image that is obtained by photographing a projection image area including a projection image. The marker image areas include marker images that are used for identifying four corners of the projection image area. The projection image area detecting unit detects the marker image areas by identifying a color included in the marker image areas that continues to change as time passes.

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: Embodiments of the present invention disclose a method and an apparatus for controlling a conference place environment in video communication, in which, the method for controlling a video communication conference place environment includes: generating illumination feedback information indicating an illumination effect of a video communication conference place, in which the illumination feedback information comprises: a parameter indicating an illumination flaw or a parameter indicating correction of the illumination flaw; and outputting the illumination feedback information, so that a lighting controlling device in the video communication conference place controls lighting in the video communication conference place according to the illumination feedback information. By use of technical solutions provided by the embodiments of the present invention, a conference place environment in video communication is able to be remotely controlled.

Abstract: A projector capable of notifying the user of the fact that the installation angle has been varied when the projector is in operation is provided. The projector includes an angle detector adapted to detect an installation angle of the projector, a keystone distortion correction device adapted to perform a keystone distortion correction of a projection image projected on the projection surface based on the installation angle detected by the angle detector, and a controller adapted to record a variation in the installation angle as installation angle variation information on the storage device in a case in which the angle detector detects the variation when the projector is in operation, and then announce occurrence of the variation in the installation angle in a case in which the installation angle variation information is recorded on the storage device in a power-OFF sequence of the projector.

Abstract: A projector includes a projection section that projects a plurality of patterns having lightness values different from each other, an imaging section that captures an image of the plurality of patterns projected by the projection section, and a projection state adjustment section that adjusts, based on any of the plurality of patterns captured by the imaging section, a projection state in which the projection section performs projection.

Abstract: An augmented reality system may generate an augmented reality environment by projecting images onto various surfaces within a scene. A projection accessory display device (PADD) provides known characteristics for projection, and may be configured to simplify generation and maintenance of the projected image upon the PADD. The PADD may also provide one or more input devices which accept input from a user within the augmented reality environment. The PADD may comprise non-electronic passive components, electronic active components, or a combination thereof.

Abstract: Objects and their placement within a particular scene may be characterized using structured light with no or minimal manual intervention or calibration to the scene. The structured light pattern may be rendered with visible light, yet imperceptible to users, by generating a set of opposing excursions in one or more image properties for durations which are shorter than the integration time of the human eye. A set of assumptions and ongoing testing of those assumptions against physical objects identified within the environment allows characterization of the scene and the objects therein.

Abstract: A CPU controls an attitude adjustment unit to change the lengths of legs of an electric leg part independently of each other so that a roll angle is changed to roll a projected image, and controls an image converter to correct the projected image to be a rectangular image on a projection target based on the changed roll angle.

Abstract: An augmented reality environment allows interaction between virtual and real objects. Various surfaces within the environment such as walls, tables, countertop, chairs, floor, ceiling, and so forth may be used as projection surfaces. Qualified projection surfaces are determined, and an initial projection surface is selected for use from these. This selection may take into account user preferences, user orientation, types of image to be projected, and so forth. Other qualified projection surfaces may have visual indicators projected thereon, indicating relative suitability for use as a projection surface.

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 includes: an image forming unit that forms a projection image; a detection unit that detects a condition at a projection surface onto which the projection image is projected; a correction unit that corrects a source image based upon the condition at the projection surface to obtain the projection image; and a projection unit that projects the projection image.

Abstract: An optical scan unit (10) is configured to include a light source (11), a divergent light conversion element (12) having such positive power as to convert divergent light from the light source (11) into convergent light to form a spot on a projection plane, an optical deflector (13) deflecting a light beam from the divergent light conversion element (12) to a first scan direction and a second scan direction which is orthogonal to the first scan direction, and a deflection angle conversion element 14 (14) having such negative power as to convert a deflection angle of the light deflected by the optical deflector (13).

Abstract: A system for projecting changeable electronic content across multiple display surfaces. The system includes display surfaces arranged at a non-zero angle with respect to one another, such as three orthogonal display surfaces in the corner of a rectangular shaped product container. Changeable electronic content, including video and digital still images, is converted such that, when the projector receives and projects the content to the multiple display surfaces, the content is displayed undistorted to a viewer.

Abstract: Various embodiments relate to a projection device for projecting useful data onto a projection surface. In this case, a first laser device generates radiation having a first wavelength and a second laser device generates radiation having a second wavelength. The spots of the respective beams are detected by a sensor device and fed to a drive device for the laser devices. Said drive device temporally shifts the drive signals relative to one another in such a way that a horizontal distance between the spots is minimized. Various embodiments furthermore relate to a corresponding method for projecting useful data.

Abstract: A projection display device including: an image projection section configured to project an image toward a projection surface; an imaging section configured to shoot the image projected on the projection surface; a location specifying section configured to specify a location of a position indication light based on a shot image by the imaging section; and a display control section configured to set a projection range of the image to a range including an image area corresponding to the location specified by the location specifying section, and to alter the projection range of the image in accordance with the set projection range.

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: First imaginary screen outer peripheral line is calculated supplementing one side that is undetected with one side of an outer peripheral line of image light that is calculated, an imaginary screen aspect ratio that is an aspect ratio of an area defined by the first imaginary screen outer peripheral line is calculated, whether the imaginary screen aspect ratio is more vertically oriented than a first ratio or not is determined. When a result of the determination of the imaginary aspect ratio is more vertically oriented than the first ratio, the imaginary screen aspect ratio is changed to second ratio that is different from the first ratio, and the one undetected side is calculated according to the second ratio, and the first imaginary screen outer peripheral line is corrected and a second imaginary screen outer peripheral line is calculated.

Abstract: A projection apparatus and a location method for determining a position of a light point on a projection image of the projection apparatus are provided. The projection apparatus comprises a lens, a light detector, a light guide module and a processing circuit. The light guide module is configured to receive the light point via the lens, and to guide the light point into the light detector. The light detector outputs a detection signal to the processing circuit according to the light point within a detection period. The processing circuit determines the position of the light point on the projection image according to the detection signal.

Abstract: A projector system includes an image generator and at least one projector for receiving an image from the image generator and projecting the image onto a screen to provide a final projected image. A computer generates correction data based on a calibration process that includes comparing an uncorrected image projected by the at least one projectors with a geometrically correct image. Wherein the at least one projector maps incoming pixel locations from the image generator to corrected pixel locations in the final projected image based on the correction data.

Abstract: A projector system may include a camera, a controller unit and a projecting unit. The camera may pick up a first image of a projection surface by visible light and a second image of the projection surface by a decreased visible light. The controller unit may perform a keystone distortion correction processing on a basis of the first image and perform an interactive processing on a basis of the second image. The projecting unit may project an image based on the performed keystone distortion correction.

Abstract: A projection system and an image processing method thereof are provided. The system includes a projector module, a photography module and a processing module. The projector module projects a first image frame to an object surface. The photography module photographs the object surface to derive a second image frame including the first image frame and an indication point, wherein the indication point is formed by light projected on the object surface by an external device. The processing module analyzes the second image frame to derive coordinate of the indication point in the second image frame, derives coordinate of at least a feature point of the first image frame in the second image frame according to a linear-approximation method, and transforms the coordinates of the indication point in the second image frame to the coordinates in the first image frame by using two-dimensional coordinate transformation equations.

Abstract: A projector, that projects an image, includes a light source, a liquid crystal panel that modulates light output from the light source and forms an image in response to input image data, a projection optical device that projects the image formed by the liquid crystal panel, a control device that controls the liquid crystal panel, and an acceleration sensor that detects a position of the projector. The control device includes a determination unit that determines whether or not the position detected by the acceleration sensor is a predetermined position, and a correction unit that corrects an orientation of the image data so that a longer side of the image data may coincide with a longer side of an image formation area of the liquid crystal panel if the determination unit determines that the detected position is the predetermined position.

Abstract: In a back-projection image display device, image light outputted from a projection device is reflected by a reflection mirror held by a base frame and projected onto the back of a screen, to display an image on the screen. An image distortion correcting mechanism includes adjustment mechanisms that deform the reflection mirror, drive units that generate driving force necessary for the deformation of the reflection mirror by the adjustment mechanisms, and a control substrate that supplies power to the drive units. The control substrate supplies power to the drive units in response to a control signal supplied from a remote control unit. This allows pin distortion and barrel distortion, as well as trapezial distortion to be corrected by remote control in the back-projection image display device.

Abstract: A chart generation unit generates an adjustment chart, and a projection unit projects the adjustment chart onto a circular cylinder. A parameter acquiring unit acquires 12 parameters in total, relating to the positions of four corners and middle points of a top side and a bottom side of a chart and lateral expansion of the chart, the chart being input by a user through manipulations of an operation unit. A transform function determination unit calculates, from the total of 12 parameters, an accurate transform function for projecting an image onto the circular cylinder. An image conversion unit applies geometric transformation to the image based on the calculated transform function.

Abstract: In an example, a content projecting system includes a communication module configured to receive an instruction to project content. The content projecting system further includes a projector configured to be affixed to a vehicle. The projector is further configured to project the content onto a projection surface separate from the vehicle.

Abstract: A virtual-sunroof system for providing a virtual sunroof at an interior of a vehicle for viewing by a passenger of the vehicle. The system includes a virtual-sunroof imaging device configured and arranged at the vehicle to collect image information from an environment above the vehicle and create digital image data using the image information. The system also includes a virtual-sunroof projection device configured and arranged in the vehicle to be in communication with the virtual-sunroof imaging device for providing a virtual sunroof display. The virtual sunroof display provided (a) is viewable above a head of the passenger, (b) is formed using the image data, (c) represents accurately at the interior of the vehicle a rendition of the environment above the vehicle, and (d) has a size, shape, and location corresponding generally to a size, shape, and location that an actual conventional-type sunroof would have in the vehicle.

Abstract: An image processing apparatus includes an acquiring unit, a specifying unit, a smoothing unit, and an output unit. The acquiring unit acquires resolutions of first and second projectors and region information regarding projected regions. The specifying unit specifies a boundary between the projected regions, the second projector having higher resolution than the first projector, based on the acquired region information. The smoothing unit executes smoothing on a predetermined region within a projected region based on the acquired resolutions of the first and second projectors such that a pixel, obtained based on a first pixel by executing the smoothing, has been affected according to a second pixel then a third pixel, wherein the first pixel is in the predetermined region, the first and second pixels are arrayed parallel to the specified boundary, and the first and third pixels are arrayed perpendicular to the boundary. The output unit outputs smoothed image data.

Abstract: An image projecting device for projecting an image on a screen is provided. The image projecting device includes a toppling detecting part that detects a toppling of the image projecting device; a toppling direction detecting part that detects a direction in which the image projecting device topples; and a controlling part that controls the image projecting device such that the image projecting device continues to project the image if the toppling detecting part detects the toppling of the image projecting device and the toppling direction detected by the toppling direction detecting part is directed toward the screen, while the image projecting device stops projecting the image if the toppling direction detected by the toppling direction detecting part is directed away from the screen.

Abstract: In at least one embodiment of the disclosure, a projector comprises an imaging unit that photographs a projection surface and acquires a first photographed image during a projection of a featured image at a first time point and acquires a second photographed image during the projection of the featured image at a second time point different from the first time point. An image processing unit generates a reference image based on the first photographed image and generates a comparative image based on the second photographed image. A movement detecting unit detects a change in a relative position of the projector with respect to the projection surface by using the reference image and the comparative image generated by the image processing unit.

Abstract: A projection display device having a projection device projecting an image on a surface, and a position detection function of detecting an object's position between the surface and the projection device, includes: a light source emitting light beams toward the object; a light detector detecting the light beams reflected by the object; and a position detector detecting the object's position in an imaginary plane based on the light detector's result, wherein the light source emits, as the light beams, first through third light beams having first through third intensity distributions, the second intensity distribution having a highest intensity at a position failing to overlap a highest intensity of the first intensity distribution, and the third intensity distribution having a highest intensity portion at a position failing to overlap a straight line connecting the highest intensity portions of the first and second intensity distributions.

Abstract: A projector which projects projection light representing an image onto a projection surface, includes: a focus adjusting unit which shifts focus of the projection light according to operation by a user; an adjustment image projecting unit which projects an adjustment image containing a portion representing a predetermined pattern by the projection light; an imaging unit which shoots the projection surface to which the adjustment image is projected; a specifying unit which specifies a focusing condition of the focus on the projection surface by analyzing image data that is shot by the imaging unit; and a condition indicating unit which displays the specified focusing condition.

Abstract: A laser projection system is provided. The laser projection system comprises a laser light source, an optical element and a lens module. The laser light source provides a laser beam. The optical element has a first surface and a second surface. The laser beam is totally reflected by the first surface to pass through the second surface. The lens module is disposed beside the second surface of the optical element for reflecting the laser beam passing through the second surface, such that the reflected laser beam is projected on a projection screen.

Abstract: An image-capturing device and a projection automatic calibration method of a projection device are provided. The image-capturing device includes an image sensing device, a lens, a processing unit and a storage unit. The lens is configured to image a calibration pattern on the image sensing device. The processing unit is configured to issue a projection calibration requirement and analyze the calibration pattern imaged on the image sensing device to obtain information relating to the calibration pattern, and the processing unit is further configured to convert imaging coordinates of the calibration pattern imaged on the image sensing device into projecting coordinates of the projection device by executing a calibration driving program to establish a coordinate conversion table. The storage unit is configured to store the calibration driving program and the coordinate conversion table.

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 multimedia player for providing clear projection image includes; a projection unit displaying a projection image; a screen sensing unit sensing a color of a display plane on which the projection image will be displayed; and a virtual input unit for detecting and providing coordinates of a position being touched on the projection image, wherein a driving unit of the projection unit controls a focal length of a projection lens unit based on a projection image being captured by the screen sensing unit.

Abstract: A projector includes: an imaging unit that picks up an image of a projection target area with light in a first wavelength band and generates a first pickup image and picks up an image of the projection target area with light in a second wavelength band and generates a second pickup image; an image generating unit that performs keystone distortion correction on the basis of the first pickup image; a positional-information generating unit that generates, on the basis of the second pickup image, positional information indicating a position of indication light included in the projection target area; and a projecting unit that projects an image based on the positional information in a state in which the keystone distortion correction is performed.

Abstract: It is an object to provide a mobile electronic device with high operability and high safety. The mobile electronic device includes an image projector that projects an image, a control unit that controls the operation of the image projector, a cabinet that holds the image projector and the control unit, and an acceleration sensor that detects an acceleration acting on the cabinet. The object is achieved in such a manner that when an acceleration of a given value or more is detected by the acceleration sensor, the control unit stops emission of light from the image projector or reduces an amount of light emitted from the image projector.

Abstract: An image projection device for displaying an image onto a remote surface. The image projection device employs a scanner to project image beams of visible light and tracer beams of light onto a remote surface to form a display of the image. The device also employs a light detector to sense at least the reflections of light from the tracer beam pulses incident on the remote surface. The device employs the sensed tracer beam light pulses to predict the trajectory of subsequent image beam light pulses and tracer beam light pulses that form a display of the image on the remote surface in a pseudo random pattern. The trajectory of the projected image beam light pulses can be predicted so that the image is displayed from a point of view that can be selected by, or automatically adjusted for, a viewer of the displayed image.

Abstract: Provided is a system for adjusting an image of a beam projector using a camera attached remote controller and a method thereof. The system for adjusting images of a beam projector according to the present invention includes: a remote controller photographing test images projected on a screen and detecting pattern images from the photographed test images and generating control information including at least one parameter necessary to adjust the images through the detected pattern images; and a beam projector receiving the control information for adjusting images from the remote controller and adjusting the input image by using parameters included in the received control information and outputting them to the screen. Therefore, the present invention adjusts colors and geometrical shapes of images at a user's viewpoint, thereby making it possible to improve the satisfaction of user and implement the system in various forms.

Abstract: An image display apparatus detects a projection angle of a projection unit that projects a screen image on a screen and is capable of vertically changing the projection angle, and corrects trapezoidal distortion of the screen image according to the projection angle. The image display apparatus changes the amount and direction of trapezoidal distortion correction based on the projection angle. The image display apparatus also determines whether a projection mode is projection upward to a wall or projection to a ceiling and changes the direction of trapezoidal distortion correction for projection upward to the wall and projection to the ceiling. Specifically, for projection upward to the wall, a correction factor is positive and an upper edge portion of the screen image is compressed for correction; and for projection to the ceiling, a correction factor is negative and a lower edge portion of the screen image is compressed for correction.

Abstract: A projector producing an imaginary input plane with high operability is provided. A projector according to an embodiment projects a VUI screen picture onto a desk, and projects a main projection screen picture to a wall. The projector includes a light receiving element. The light receiving element is arranged in a position where light emitted toward the desk (VUI screen picture) and reflected (or scattered) by an object near the desk enters. The projector calculates a position of the object based on light sensing timing by the light receiving element and light scan positions at various points in time. The projector changes a projected screen picture when it determines that object is simultaneously in contact with a plurality of portions of the VUI screen picture and at least one of contact positions moves.

Abstract: There is provided an image output device including a projectable region calculating unit that calculates a projectable region which is a region on a screen in which laser beam is projectable based on a trajectory in which scanning with the laser beam is performed using information specifying the screen onto which an image is projected by two-dimensional scanning with the laser beam, a projection window setting unit that causes the laser beam to be emitted and sets a projection window serving as a range in which the image is projected in the projectable region, and a generating unit that generates a pixel value of each of positions corresponding to pixels included in the image within the projection window on the screen for each pixel in a manner that the image is projected in the range set by the projection window.

Abstract: An underwater projection system, a controller and method of controlling are herein described. The controller providing, at least in part, a boundary setting module or methodology and/or an image correction module or methodology through a user interface for the underwater projection system. A user interface is provided to enable user control and input and adjustment of the image controller from an observation point outside of the media of the underwater projection system, while the adjustments are made in-situ. An optional automated edge or edge and surface detection system is also contemplated to assist in boundary detection within the water feature for the underwater image projection system.

Abstract: An image processing device is capable of suppressing the influence of the direction in which the image is projected on the projection surface to thereby improve the accuracy of the focus adjustment. The image processing device includes a detection section adapted to detect information regarding a direction in which an adjusting image for adjusting focus of an image to be projected on a projection surface is projected on the projection surface, and an adjusting image acquisition section adapted to obtain the adjusting image different in accordance with the information regarding the direction detected by the detection section.

Abstract: Devices and techniques are described for automatically calibrating a projector system. The projector system undergoing calibration is coupled to a computing device and an automated positioning platform coupled to a target structure. The computing device acquires images using a calibrated camera of one or more patterns projected by the projector onto the target structure when the target structure is in a plurality of repeatable poses. From these acquired images, intrinsic projector parameters may be determined. Once determined, the parameters may be used to correct images produced by the projector or acquired by the camera which include a projected pattern or portion thereof.

Abstract: A projection lens for projecting images with high degrees of image offset while limiting the physical offset of the projection lens elements. The projection lens arrangement limits the displacement of the optical elements relative to the optical axis of the display panel and enables a very thin, efficient projector.

Abstract: An image projection apparatus comprises a projection unit configured to project an image onto a projection plane, a correction unit configured to correct a range of the image projected by the projection unit, a deformation unit configured to deform the projected range of the image according to a designated correction point, and a control unit configured to optically change the projected range of the image projected by the projection unit according to a designation of an outside of a predetermined range as the correction point.