A passenger service unit is provided. The passenger service unit includes at least one projector configured to project an image onto one or more display surfaces, at least one sensor configured to indicate a current position of the one or more display surfaces, and a projector controller in communication with the at least one projector and the at least one sensor. The projector controller is programmed to receive a signal from the at least one sensor indicating a current position of a display surface and instruct the at least one projector to project at least one image onto the tray table based on the current position of the display surface.

A display method includes imaging a captured image containing a first marker placed on a surface and a second marker placed on the surface, and displaying a first image corresponding to the first marker and a second image corresponding to the second marker in an arrangement corresponding to an arrangement of the first marker and the second marker in the captured image on the surface.

An electronic apparatus is disclosed. The electronic apparatus includes: an image projector, and a processor configured to: control the image projector to project a test image including a plurality of markers onto a projection plane, based on first information indicating a location of the plurality of markers in the test image and second information indicating a location of the plurality of markers in an image of the projection plane photographed by an external device, acquire third information indicating a location of a vertex of the test image in the photographed image, correct the third information based on posture information of the external device, and perform keystone correction based on the corrected third information.

An image display system includes a body, a first correction unit, and a second correction unit. The body houses a display unit to display an image and projects a virtual image, corresponding to the image, onto a target space using outgoing light of the display unit. The first correction unit corrects for distortion of the image. The second correction unit corrects a display location of the image on the display unit in accordance with an orientation signal representing a change in orientation of the body. Each of divisional areas of a display screen of the display unit is assigned with a distortion correction parameter for correcting for the distortion of the virtual image. The first correction unit applies distortion correction to each of the image regions of the image on the display screen based on a distortion correction parameter assigned to a divisional area where the image region is displayed.

The projection image compensating method according to an embodiment of the present disclosure includes acquiring mesh data, at least one representative image, at least one supplementary image, and position information which is information about an obtaining pose of each image for an indoor space; adding an index of each of the plurality of faces to a matrix corresponding to a size of the at least one representative image in accordance with a result of projecting the plurality of faces which configures the mesh data to the at least one representative image; detecting at least one occluded face among the plurality of faces, using an index added to the matrix; and extracting pixel information which is information of a pixel value corresponding to the at least one occluded face from the at least one supplementary image.

A projector projects a first image onto a projection surface to thereby display a first projected image on the projection surface, acquires first imaging data obtained by capturing the first projected image, determines, based on the first imaging data, a type of a three-dimensional shape on the projection surface, projects a second image including a plurality of points onto the projection surface to thereby display a second projected image on the projection surface, acquires second imaging data obtained by capturing the second projected image, specifies, based on the second imaging data and the type of the three-dimensional shape on the projection surface, positions of the respective plurality of points on the projection surface, generates, based on the positions of the respective plurality of points, and correction data for correcting distortion of an image projected onto the projection surface, corrects, based on the correction data, image data input to the projector.

A first image including a first line segment is projected onto a projection surface to acquire first imaging data of a first projected image. A second image including a first mark and a second mark overlapping the first line segment is projected onto the projection surface to acquire second imaging data of a second projected image. Based on a positional relation between a third mark and a fourth mark located on a second line segment corresponding to the first line segment and a positional relation between the first mark and the second mark located on the first line segment, relation data that associates the first mark and the third mark and associates the second mark and the fourth mark is generated. Correction data is generated based on the relation data. Image data is corrected based on the correction data. A corrected image is projected onto the projection surface.

The techniques disclosed herein provide apparatus, methods and systems that adaptively adjust the signal waveform (or waveshape) of the drive signal to a slow-scan mirror to compensate for non-linearities observed in the slow-scan feedback signal from a slow-scan mirror. Over large scan angles and high temperatures, the slow-scan mirror in a laser beam scanning device may exhibit a nonlinear response to the drive signal that results in poor image quality issues such as bright lines, bands in the display image, and image distortion. The presently disclosed technologies track the linearity performance of the overall system by detecting non-linearities in waveform of the slow-scan feedback signal real time, and consequently apply a pre-distortion to the drive waveform to compensate for these detected non-linearities. The parameters, logic and blocks of the control may be implemented in hardware, software or combinations thereof.

A projection apparatus projects a first image projected by a first projection portion and a second image projected by a second projection portion in a partially overlapping manner, and includes: a processor configured to perform a projection control on a first region of the first image set as an overlapping region with the second image and a second region of the second image set as an overlapping region with the first image, and the processor is configured to: in a case where a first operation of providing an instruction to change the first region and the second region is received, perform at least one of: a control of projecting the first image; or a control of projecting the second image; and in a case where a second operation of providing an instruction to confirm the first region is received, finish the control corresponding to the first operation.

A projector and a projection system are provided. The projection system includes the projector and a mobile device. The projector receives an audio-visual signal coming from the mobile device via a default wireless domain when the projector is connected to the mobile device, and outputs an image according to the audio-visual signal. The projector also charges the mobile device.