A projection device includes: a projection unit configured to project image light to a projection target; an image-capturing unit configured to capture an image of a range including the projection target to generate a captured image; a communication unit; and a control unit configured to transmit the captured image to an information processing device by the communication unit and cause a reception image received by the communication unit from the information processing device to be projected by the projection unit. The projection unit includes an image light forming unit configured to form image light and a projection optical system configured to project the image light formed by the image light forming unit toward the projection target. The image-capturing unit includes an imaging element configured to receive light through the projection optical system.

Systems and methods for projecting a multi-faceted image onto a convex polyhedron based on an input image are described. A system can include a controller configured to determine a mapping between pixels within a wide-angle image and a multi-faceted image, and generate the multi-faceted image based on the mapping.

An electronic device comprises a projector that is configured to project an image and a control unit. The control unit is configured to control an orientation of the image to be projected to a first orientation and onto a first surface when the electronic device is in a first attitude, and to control the orientation of the image to be projected to a second orientation different from the first orientation and onto a second surface different from the first surface when the electronic device is in a second attitude different from the first attitude.

A method for adjusting a projection picture includes: receiving a first image, captured by a first imaging module, of a position where the projection picture is located, and a second image, captured by a second imaging module, of surroundings of a projection device; identifying, based on the first image, whether a projection shade is present within a projection range of a projecting module; identifying position information of a projection shade in response to the projection shade being present; identifying, based on the second image, movable directions and movable distances of the projection device; and controlling, based on the position information of the projection shade and the movable directions of the projection device and the movable distances in the movable directions, the position adjusting module to adjust the projection device, such that the projection device escapes from the projection shade and a complete projection picture is acquired.

A signal detection device of the present invention includes a first control unit configured to determine whether there are inputs of a plurality of external signals connected thereto, a second control unit configured to be activated after the first control unit is activated, a first input unit connected directly to the first control unit and configured to input a first external signal, which is one type of the plurality of external signals, and a second input unit connected to the first control unit via the second control unit and configured to input a second external signal, which is another type of the plurality of external signals, and the first control unit determines whether there is an input of the first external signal before the second control unit is activated and determines whether there is an input of the second external signal after the second control unit is activated.

Hand gestures may be performed to control a visual projector. When a human hand is placed into a projection field of the visual projector, the visual projector responds to hand gestures performed by the human hand. The human hand, for example, may gesture to rotate a projected image or to correct the projected image. The visual projector may thus manipulate and/or correct the projected image in response to the gesture performed by the human hand.

A projection capture system includes a camera to capture video of objects in a capture space, and a light emitting diode (LED) projector to illuminate the objects in the capture space and to project images captured by the camera into a display space. The projector includes a sequential display mode for sequentially displaying red, green, and blue light to project images captured by the camera into the display space, and a camera flash mode for simultaneously displaying red, green, and blue light to provide white light for illuminating the objects in the capture space during video capture.

The present disclosure relates to the technical field of digital projection display, and discloses a projection method and a projection apparatus. The method includes: acquiring a target object image; identifying attribute information of a target object based on the target object image; acquiring preset projection content based on the attribute information of the target object; acquiring a projection path; and projecting a projection screen based on the preset projection content and controlling the projection screen to move along the projection path. In this way, the projection is more flexible and more pertinent.

One variation of a method for augmenting surfaces in a space includes: at a projection system, recording a sequence of scans of the space; aggregating the sequence of scans into a projector-domain image of the space; detecting a set of objects in the projector-domain image; identifying an object, in the set of objects, as of a first type; detecting a surface proximal the object in the projector-domain image; defining an association between the surface and a content source based on the first type of the object; based on the association, warping visual content output by the content source according to a profile of the surface extracted from the projector-domain image; actuating a projector assembly in the projection system to locate the surface in the field of view of a light projector in the projection system; and projecting the visual content, via the light projector, toward the surface.

A signal detection device of the present invention includes a first control unit configured to determine whether there are inputs of a plurality of external signals connected thereto, a second control unit configured to be activated after the first control unit is activated, a first input unit connected directly to the first control unit and configured to input a first external signal, which is one type of the plurality of external signals, and a second input unit connected to the first control unit via the second control unit and configured to input a second external signal, which is another type of the plurality of external signals, and the first control unit determines whether there is an input of the first external signal before the second control unit is activated and determines whether there is an input of the second external signal after the second control unit is activated.