The invention relates to a decorative panel, in particular a decorative floor panel, ceiling panel or wall panel. The invention also relates to a decorative covering composed of a plurality of, preferably interconnected, decorative panels according to the invention, wherein said covering preferably includes entire panels and sawn panel parts and/or cut panel parts.

In a system in which a first electronic device, a server, and a second electronic device wirelessly communicate with each other, the first electronic device may detect object information associated with at least one object from a video being captured and may transmit the object information to the server, the server may identify a location of the object based on the object information and may transmit service information associated with the location of the object to the second electronic device, and the second electronic device may provide the service information to a user.

In a system in which a first electronic device, a server, and a second electronic device wirelessly communicate with each other, the first electronic device may detect object information associated with at least one object from a video being captured and may transmit the object information to the server, the server may identify a location of the object based on the object information and may transmit service information associated with the location of the object to the second electronic device, and the second electronic device may provide the service information to a user.

A positioning device including a plate having a first side and a second side opposite to the first side, a guiding pin mounted to the plate and extending perpendicularly from the first side of the plate, and an expandable pin mounted to the plate. An expandable portion of the expandable pin extends perpendicularly from the first side of the plate. The positioning device further includes at least two reflectors, and an identifier. The at least two reflectors and the identifier are not located on a common straight line. Furthermore, a method for mounting two structural parts to one another using such positioning device is provided.

A two-dimensional information code is provided. Inside the information code, specification Patten regions, a recording region, and an information addition region are arranged. In the specification pattern region, predetermined-shape specification patterns are arranged. Data expressed by a plurality of types of cells are recorded in the data recording region. Additional information, which is different from the data recorded in the data recording region, can be recorded in the information addition region.

A method including generating first images and/or text on a plurality of items, printing a plurality of unique identifiers, each unique identifier being printed over the images and/or text on a corresponding one of the plurality of items, capturing a plurality of second images, each second image including a corresponding one of the plurality of unique identifiers, and storing the captured plurality of second images in a computer readable memory.

Disclosed is a two-dimensional code which is not likely to be affected by contamination or out-of-focus photographing thereof and can thus be accurately recognized even when it is photographed under various photographing conditions. The disclosed two-dimensional code comprises: cells representing binary-coded data that are arranged as a pattern in the form of a two-dimensional matrix, the two-dimensional code comprising: a position detection pattern; plural data blocks created by dividing a region of the two-dimensional matrix that excludes the part of the position detection pattern; and a separation space arranged between the plural data blocks that are adjacent.

Disclosed is a two-dimensional code which is not likely to be affected by contamination or out-of-focus photographing thereof and can thus be accurately recognized in a short time even when it is photographed under various photographing conditions. The disclosed two-dimensional code comprises: cells representing binary-coded data that are arranged as a pattern in a two-dimensional matrix; and four or more different position detection patterns.

Disclosed are various embodiments involving use of a multi-scale fiducial by an autonomously controlled aerial vehicle. A first image at a first location is captured, and a first fiducial at a first scale of a multi-scale fiducial is recognized within the first image. The autonomously controlled aerial vehicle is piloted relative to the multi-scale fiducial based at least in part on information contained within the first fiducial. A second image at a second location is captured, and a second fiducial at a second scale of the multi-scale fiducial is recognized within the second image. An action is then performed based at least in part on information contained within the second fiducial.

A method including generating first images and/or text on a plurality of items, printing a plurality of unique identifiers, each unique identifier being printed over the images and/or text on a corresponding one of the plurality of items, capturing a plurality of second images, each second image including a corresponding one of the plurality of unique identifiers, and storing the captured plurality of second images in a computer readable memory.