Provided are an ink set and a printed article, the ink set comprising an ink jet ink A which contains a polymerizable compound, a photopolymerization initiator, and perylene black and in which a proportion of a polyfunctional polymerizable monomer in the contained polymerizable compound is 60% by mass or more, and an ink jet ink B which contains a polymerizable compound, a photopolymerization initiator, and an infrared absorbing dye and in which a proportion of a polyfunctional polymerizable monomer in the contained polymerizable compound is 60% by mass or more.

The present invention discloses a method for producing graphical indicators and interactive systems for utilizing the graphical indicators. On the surface of an object, visually negligible graphical indicators are provided. The graphical indicators and main information, i.e. text or pictures, co-exist on the surface of object. The graphical indicators do not interfere with the main information when the perception of human eyes are concerned. With the graphical indicators, further information other than the main information on the surface of object are carried. In addition to the main information on the surface of object, one is able to obtain additional information through an auxiliary electronic device or trigger an interactive operation.

A computer implemented method for recognizing an answer sheet includes the steps of: reading a filled answer sheet comprising at least one set of graphical codes; locating each set of graphical codes in the answer sheet; a set of graphical codes comprising one grid or two grids, wherein for each set of graphical codes, if the function mark of the first grid is filled, two sets or four sets of 8-digit binary codes are obtained according to the filling state of each of the filling areas in each grid of the set of graphical codes; and recognizing the corresponding characters according to the encoding format determined by the encoding format mark. If the function mark in the first grid is un-filled, the filling states of the eight icons of the encoding format mark are converted to the third set of binary codes for character recognition.

A method for inspecting a machine using augmented reality (AR) includes providing a user interface to a user device, receiving a video feed of the machine from a camera, displaying the video feed on the user interface, and overlaying a digital twin of the machine onto the video feed of the machine on the user interface, the digital twin comprising a sensor reading from each of one or more sensors embedded in the machine.

The present invention discloses a method and an apparatus for localization and mapping based on color block tags, applicable for real-time mapping of an area to be localized in which at least one color block tag is arranged, the method comprises: taking a location of a first color block tag as a coordinate origin of a coordinate system when information of the first color block tag is obtained by a mobile electronic device; moving the mobile electronic device to start to traverse the entire area to be localized from the coordinate origin, calculating coordinates of an obstacle detected by the mobile electronic device based on a location of the mobile electronic device relative to the coordinate origin; constructing a map based on recorded information of the color block tags and coordinates thereof and the coordinates of each obstacle when the traversal has been finished.

A barcoded end facet printed photonic chip includes: an optically transparent direct laser writing substrate including a transverse waveguide writing surface to receive a direct write laser light for off-axis direct write laser printing and a facet surface to receive the direct write laser light for on-axis direct write laser printing of a barcode-guided direct laser written optical coupling on the facet surface; a waveguide disposed in the optically transparent direct laser writing substrate and in optical communication with the facet surface; and an optically visible bulk impregnated barcode disposed in the optically transparent direct laser writing substrate arranged proximate to the waveguide and in optical communication with the facet surface.

A portable scan-assistance device is provided. A mobile device operated by a customer establishes a connection to the scan-assistance device at the start of a shopping trip by tapping the mobile device on the scan-assistance device or by the mobile device scanning a code affixed to the scan-assistance device. A status light on the scan-assistance device illuminates a designated color (such as blue) upon successful connection. A camera/image sensor/barcode reader of the scan-assistance device captures an item code of an item placed in front of the camera and forwards the item code to a mobile shopping application on the user mobile device during the customer's shopping trip. When an item code is successfully captured the status light of the scan-assistance device illuminates a second color (such as green), otherwise the status light of the scan-assistance device illuminates a third color (such as red).

The disclosed embodiments are generally directed to improving feature detection of rapidly acquired images using camera-enabled mobile devices involving a 2-D decal code, such as a QR code, for improving the reading accuracy of a rapid diagnostic antigen or antibody or enzymatic colorimetric directed test, such as for COVID-19 diagnosis. One primary issue with evaluating a Covid-19 rapid test is detecting and quantifying positive test lines from sampled test strips based on digital images of the test strip. Aspects of the present invention contemplate masking a QR code to improve the sample image resolution and contrast. Other aspects of the present invention contemplate methods and techniques to evaluate a test line on the sample image by enhancing an intensity curve along the test line and control line containing area by way of calculating the instantaneous change in pixel intensity and evaluating the position and intensity of those signals.

Technologies are shown for shipping route selection involving receiving sender and recipient shipping information for an item to be shipped and obtaining shipping route options for the item based on the sender and recipient shipping information. The route options are provided for display and selection of an option. A routing data block is created for the item at an address on a blockchain that stores shipping information for each stage of the selected route. A shipping tag is encoded with the blockchain address and attached to the item. The tag can be scanned to obtain the blockchain address and request information for a next stage of the shipping route from the block. The next shipping information from the block is received and utilized to ship the item to a next geolocation. The next shipping information can be determined based on current conditions, such as weather, pricing and availability.

The challenge of the present invention is to be able to use a large number of code generation apparatuses and to be able to identify each one.

In the apparatus, a plurality of electrodes detected by a change in a physical quantity detected by a touch panel by bringing it into contact with or by substantially into contact with the touch panel connected to a first information processing apparatus is arranged on a bottom surface of a housing, and the apparatus comprises a communication processing unit that is equipped with a housing formed of a conductive member connected to the plurality of electrodes and that enters a connected state based on at least a part of an electrode code with the first information processing apparatus that recognizes the electrode code formed based on electrodes detected by the touch panel among the plurality of electrodes.