Abstract: A light guide plate 10 includes: a first incidence surface 26; a first emission surface 21 intersecting with the first incidence surface 26 in a direction perpendicular thereto for emitting the light entering through the first incidence surface 26; a second incidence surface 27; and a second emission surface 23 intersecting with the second incidence surface 27 in a direction perpendicular thereto for emitting the light entering through the second incidence surface 27. The light guide plate 10 is planar. The first incidence surface 26 and the second incidence surface 27 are provided on side surfaces along directions perpendicular to each other; the first emission surface and the second emission surface are provided in different regions on the same plane of a first surface; and second protrusions 25 is provided on the second emission surface 23, which extends in a direction perpendicular to the second incidence surface 27.

Abstract: An image analyzer (12) of an input device (1) analyzes images acquired by an image acquirer (11) and extracts image areas representing a user's body parts. A coordinate extractor (13) extracts, from the image areas representing body parts, coordinates of feature points on body parts, and generates body motion information (200d) representing trajectories of motions of body parts. When determined that predetermined body motions are performed based on the body motion information (200d), a body motion determiner (15) detects center coordinates of trajectory shapes of the predetermined body motions. A start coordinate detector (16) detects start coordinates of the predetermined body motions based on the body motion information (200d).

Abstract: A projection control apparatus, method and non-transitory computer-readable storage medium are disclosed. A projection control apparatus may include a memory storing instructions; and one or more processors configured to process the instructions to: cause a projection apparatus to project an image; detect a user operation; control the projection apparatus to change projection parameters upon detecting a first user operation; and control the one or more processors to change the image without changing the projection parameters upon detecting a second user operation.

Abstract: An image inputter inputs image data in which a user has been captured. An extractor extracts a region corresponding to a hand of the user included in the image data input by the image inputter. A determinator determines whether or not the region corresponding to the hand of the user extracted by the extractor is in a stationary state. If it is determined by the determinator that the region corresponding to the hand of the user is in a stationary state, a recognizer recognizes the shape of the region corresponding to the hand of the user extracted by the extractor. Otherwise, if it is determined by the determinator that the region corresponding to the hand of the user is not in a stationary state, the recognizer recognizes the movement of the region corresponding to the hand of the user extracted by the extractor. An inputter inputs data associated with the shape or the movement recognized by the recognizer.

Abstract: An inputter inputs a captured image of a hand captured by a camera. An acquirer acquires information indicating the distance between the camera and the hand. A storer stores reference data for specifying a hand gesture and a command corresponding to the gesture, for each distance between the camera and the hand. A selector selects, from among the reference data stored in the storer, reference data corresponding to the distance indicated by the information acquired by the acquirer. A specifier refers to the reference data selected by the selector, specifies a hand gesture in the captured image input by the inputter, and specifies a command corresponding to the specified gesture.

Abstract: An information processing system, method and non-transitory computer-readable storage medium are disclosed. The information processing system may include a memory storing instructions; and at least one processor configured to process the instructions to detect an actual object, determine at least one of an orientation and a position of a first image within a projection surface, based on at least one of an orientation and a position of the actual object, and project the first image onto the projection surface in at least one of the determined position and determined orientation.

Abstract: A projection control apparatus, method and non-transitory computer-readable storage medium are disclosed. A projection control apparatus may include a memory storing instructions; and one or more processors configured to process the instructions to: cause a projection apparatus to project an image; detect a user operation; control the projection apparatus to change projection parameters upon detecting a first user operation; and control the one or more processors to change the image without changing the projection parameters upon detecting a second user operation.

Abstract: An information processing system, method and non-transitory computer-readable storage medium are disclosed. The information processing system may include a memory storing instructions; and one or more processors configured to process the instructions to detect an actual object, project a first image, detect a user's operation on the actual object, and execute a task regarding the first image on the basis of the user's operation.

Abstract: An image analyzer (12) of an input device (1) analyzes images acquired by an image acquirer (11) and extracts image areas representing a user's body parts. A coordinate extractor (13) extracts, from the image areas representing body parts, coordinates of feature points on body parts, and generates body motion information (200d) representing trajectories of motions of body parts. When determined that predetermined body motions are performed based on the body motion information (200d), a body motion determiner (15) detects center coordinates of trajectory shapes of the predetermined body motions. A start coordinate detector (16) detects start coordinates of the predetermined body motions based on the body motion information (200d).

Abstract: An image inputter inputs image data in which a user has been captured. An extractor extracts a region corresponding to a hand of the user included in the image data input by the image inputter. A determinator determines whether or not the region corresponding to the hand of the user extracted by the extractor is in a stationary state. If it is determined by the determinator that the region corresponding to the hand of the user is in a stationary state, a recognizer recognizes the shape of the region corresponding to the hand of the user extracted by the extractor. Otherwise, if it is determined by the determinator that the region corresponding to the hand of the user is not in a stationary state, the recognizer recognizes the movement of the region corresponding to the hand of the user extracted by the extractor. An inputter inputs data associated with the shape or the movement recognized by the recognizer.

Abstract: An inputter inputs a captured image of a hand captured by a camera. An acquirer acquires information indicating the distance between the camera and the hand. A storer stores reference data for specifying a hand gesture and a command corresponding to the gesture, for each distance between the camera and the hand. A selector selects, from among the reference data stored in the storer, reference data corresponding to the distance indicated by the information acquired by the acquirer. A specifier refers to the reference data selected by the selector, specifies a hand gesture in the captured image input by the inputter, and specifies a command corresponding to the specified gesture.

Abstract: Where each of m and n are any natural number: a drawing region subdivider 5 for subdividing a drawing region into an m×n matrix of drawing subregions having m rows and n columns,; a target vector data selector 6 for discriminating, for each of the drawing subregions, vector data necessary for drawing the drawing subregion from vector data of an image; and a subdivisional drawer 7 for drawing, for each of the drawing subregions after the subdivision by the drawing region subdivider 5, an image based on a drawing subregion target vector data 23 discriminated by the target vector data selector 6 are provided as necessary for drawing the drawing subregion. Preferably, a curve vector data replacer 71 of the subdivisional drawer 7, for each of the drawing subregions, replaces curve vector data outside of the drawing subregion from vector data configuring a figure to be subdivisionally drawn with straight-line vector data and performs a fill processing.

Abstract: Where each of m and n are any natural number: a drawing region subdivider 5 for subdividing a drawing region into an m×n matrix of drawing subregions having m rows and n columns,; a target vector data selector 6 for discriminating, for each of the drawing subregions, vector data necessary for drawing the drawing subregion from vector data of an image; and a subdivisional drawer 7 for drawing, for each of the drawing subregions after the subdivision by the drawing region subdivider 5, an image based on a drawing subregion target vector data 23 discriminated by the target vector data selector 6 are provided as necessary for drawing the drawing subregion. Preferably, a curve vector data replacer 71 of the subdivisional drawer 7, for each of the drawing subregions, replaces curve vector data outside of the drawing subregion from vector data configuring a figure to be subdivisionally drawn with straight-line vector data and performs a fill processing.