Abstract: A security document precursor including, in order, at least: a) a transparent biaxially stretched polyethylene terephthalate foil; b) a colourless colour forming layer containing at least an infrared absorber, a colour forming component and a polymeric binder; and c) a polymeric support; wherein the colourless colour forming layer contains at least one component forming a compound having a melting temperature of less than 20° C. upon laser marking the colourless colour forming layer with an infrared laser. Methods for securing a security document using the security document precursor are also disclosed.

Abstract: A method of colour laser marking a security document precursor including, in order, at least: a) a polymeric foil; b) at least one colourless colour forming layer for generating a colour different from black containing at least an infrared absorber, a colour forming compound and a polymeric binder; and c) either a lasermarkable polymeric support or a lasermarkable layer for generating a black colour; comprising the steps of: (1) laser marking a colour different from black in the colourless colour forming layer with an infrared laser used in continuous wave mode; and (2) laser marking a black colour by carbonization in the lasermarkable polymeric support or the lasermarkable layer with the same infrared laser used in a pulsed mode; and wherein at least one of the polymeric foil and the lasermarkable polymeric support is transparent for the infrared light of the infrared laser.

Abstract: The present invention relates to an apparatus and to a corresponding method for reading out X-ray information stored in a storage phosphor layer (1) comprising a light source (2) for generating a stimulation light beam (3) which can stimulate the storage phosphor layer (1) to emit emission light, and a deflection element (4) for deflecting the stimulation light beam (3) in such a way that the deflected stimulation light beam (3?) is moved over the storage phosphor layer (1). In order to achieve the highest possible quality of the X-ray image obtained in the simplest and most cost-effective way possible, a drive device (5) is provided for driving the deflection element (4) by delivering drive energy to the deflection element (4) dependently upon a location of the deflected stimulation light beam (3?) and/or dependently upon a position, in particular an angular position, of the deflection element (4).

Abstract: An inkjet printing method includes, in order, the steps of a) providing to an inkjet printer at least two or more colorless liquids having a different composition and at least one color inkjet ink; b) mixing the color inkjet ink in a controlled amount with the two or more colorless liquids; and c) printing the ink-mixture of the color inkjet ink and the two or more colorless liquids with the inkjet printer onto an ink-receiver.

Abstract: An inkjet printing method including, in order, the steps of: a) providing at least two or more color inkjet inks of the same color and color density but having a different composition to an inkjet printer; b) mixing the two or more color inkjet inks in a controlled amount; and c) printing the mixture of the two or more color inkjet inks with the inkjet printer onto an ink-receiver. An inkjet printer and an inkjet ink set include two or more color inkjet inks of the same color and color density but having a different composition.

Abstract: A polymerizable Norrish Type II photoinitiators includes an optionally substituted benzophenone group or an optionally substituted thioxanthone group exhibiting improved compatibility with and solubility in radiation curable compositions. Radiation curable compositions and inkjet inks can contain these polymerizable Norrish Type II photoinitiators, exhibiting low extractable amounts of the photoinitiators and their residues after curing.

Abstract: A security document precursor including, in order: a) at least one transparent biaxially stretched polyester foil; b) one colourless colour forming layer containing at least an infrared absorber, a colourless dye-precursor and a polymeric binder; and c) a polymeric support; wherein the polymeric binder is copolymer including at least 90 wt % of a chlorinated ethylene and 1 wt % to 10 wt % of vinyl acetate both based on the total weight of the binder. Methods for making the security document precursor are also disclosed.

Abstract: A method of colour laser marking an article having a polymeric foil with at least one colourless layer containing an infrared absorber, a polymeric binder and a colour forming compound; including the steps of:—laser marking the colourless layer with an infrared laser using a first laser operation mode to generate a blue or cyan colour; and—laser marking the same colourless layer with an infrared laser using a second laser operation mode to generate a black colour, wherein the first laser operation mode applies less energy to the colourless layer than the second laser operation mode.

Abstract: The invention relates to a system and to a corresponding method for optical coherence tomography having an interferometer (10) for emitting light with which a specimen (1) is irradiated, the interferometer (1) comprising a beam splitter (13) and at least one reflector (12) the optical distance (I) of which from the beam splitter (13) is changeable, a specimen objective by means of which light emitted by the interferometer (10) is focussed in a focus lying within the specimen (1), and a detector (30) for collecting light which is reflected by the specimen (1).

Abstract: A method of generating a multiscale contrast enhanced image is described wherein the shape of edge transitions is preserved. Detail images are subjected to a conversion, the conversion function of at least one scale being adjusted for each detail pixel value according to the ratio between the combination of the enhanced center differences and the combination of the unenhanced center differences. Several adaptive enhancement measures are described.

Abstract: A relief print master is created by a printhead that moves in a slow scan direction. The nozzles of the printhead jet droplets of a polymerisable liquid on a rotating drum. The different nozzles jet droplets simultaneously on different layers that have different diameters. As a result, the droplets jetted by different nozzles travel over different distances before landing. The effect of this is that the droplets undergo different position lag as they land on the different layers. By rotating the printhead in a plane that includes the central axis of the rotating drum and a nozzle row this effect can be compensated for.

Abstract: A polymerisable photoinitiator according to Formula (I): wherein: R1 and R2 are independently selected from the group consisting of hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl or heteroaryl group, a halogen, an ether group, a thioether group, an aldehyde group, a ketone group, an ester group, an amide group, an amine and a nitro group; R1 and R2 may represent the necessary atoms to form a five to eight membered ring; L represents an n+m-valent linking group comprising 1 to 30 carbon atoms; A represents a radically polymerizable group selected from the group consisting of an acrylate group, a methacrylate group, a styrene group, an acryl amide group, a methacryl amide group, a maleate group, a fumarate group, an itaconate group, a vinyl ether group, an allyl ether group, a viny

Abstract: The invention relates to an image receiving material for offset printing comprising a support and an image receiving layer, the image receiving layer comprising a porous pigment and an aqueous dispersion of a polymer particle characterized in that the image receiving layer further comprises a copolymer comprising alkylene and vinyl alcohol units.

Abstract: A method of server site rendering 3D images on a server computer coupled to a client computer wherein the client computer instructs a server computer to load data for 3D rendering and sends a stream of rendering parameter sets to the server computer, each set of rendering parameters corresponding with an image to be rendered; next the render computer renders a stream of images corresponding to the stream of parameter sets and the stream of images is compressed with a video compression scheme and sent from the server computer to the client computer where the client computer decompresses the received compressed video stream and displays the result in a viewing port. The rendering and communication chain is subdivided in successive pipeline stages that work in parallel on successive rendered image information.

Abstract: A basic component of Computer-Aided Detection systems for digital mammography comprises generating candidate mass locations suitable for further analysis. A component is described that relies on filtering either the background image or the complementary foreground mammographic detail by a purely signal processing method on the one hand or a processing method based on a physical model on the other hand. The different steps of the signal processing approach consist of band-pass filtering the image by one or more band pass filters, multidimensional clustering, iso-contouring of the distance to centroid of the one or more filtered values, and finally candidate generation and segmentation by contour processing. The physics-based approach also filters the image to retrieve a fat-corrected image to model the background of the breast, and the resulting image is subjected to a blob detection filter to model the intensity bumps on the foreground component of the breast that are associated with mass candidates.

Abstract: Process comprising the steps of: (i) providing an elongated porous web, said elongated porous web comprising two outermost surfaces; (ii) transporting said elongated porous web downwards between two impregnating heads comprising two slots each with substantially vertical upper and lower slot faces substantially parallel to said elongated porous web providing simultaneously to both surfaces of said elongated porous web metered substantially identical quantities of a dope, comprising at least one membrane polymer and at least one solvent therefor; (iii) thereby impregnating said elongated porous web completely with said dope and providing substantially equally thick dope layers on each surface of said outermost surfaces of said elongated porous web with a thickness independent of the gap between one of said lower slot faces and the surface of said elongated porous web nearest thereto; (iv) subjecting said dope associated with said elongated porous web immediately after dope-impregnation to symmetric phase inver

Abstract: A polymerizable photoinitiator is represented by Formula (I): wherein R1, R2 and R3 are independently selected from the group consisting of a hydrogen, an optionally substituted alkyl group and an optionally substituted aryl group or R1 and R3 represent the necessary atoms to form a five to eight membered ring; p, w, y and z are all integers with y representing a value 1 to 6; p representing the sum of w and z; p representing a value of 1 to 6; w=1 to (p?z) and z=0 to (p?w); L represents an optionally substituted (p+y)-valent linking group comprising 1 to 14 carbon atoms; A represents a radically polymerizable group selected from the group consisting of an acrylate group, a methacrylate group, a styrene group, an acryl amide group, a methacryl amide group, a maleate group, a fumarate group, an itaconate group, a vinyl ether group, an allyl ether group, an allyl ester group and a vinyl ester group; and X represents a photoinitiating moiety including at least one group capable of initiating a free radical p

Abstract: At least one of two enhancement methods for changing contrast and/or density are applied to an image. According to a first enhancement method the window width/level settings of the image are modified and according to a second enhancement method density and contrast of the image are modified by modifying a multi-scale representation of the image whereby modification is derived from at least two gradient functions determined at different scales, a gradient function at a specific scale specifying the dependency of contrast amplification at said scale as a function of density. The amount of modification obtained by applying either of said first and second enhancement methods is determined by the amount of movement of at least one indicium.

Abstract: A radiation curable composition includes a) at least one monomer comprising at least one vinyl ether group and at least one (meth)acrylate group; and b) at least one diffusion hindered photoinitiator selected from the group consisting of a polymeric photoinitiator, a multifunctional photoinitiator and a polymerizable photoinitiator characterized in that the diffusion hindered photoinitiator includes at least one structural moiety according to Formula (I): wherein: R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl or heteroaryl group, a halogen, an ether, a thioether, an aldehyde, a ketone, an ester, an amide, an amine and a nitro group; R1 and R2 may represent the necessary atoms to form a five to eight membered rin

Abstract: An inkjet printing method includes, in order, the steps of a) providing to an inkjet printer at least two or more colorless liquids having a different composition and at least one color inkjet ink; b) mixing the color inkjet ink in a controlled amount with the two or more colorless liquids; and c) printing the ink-mixture of the color inkjet ink and the two or more colorless liquids with the inkjet printer onto an ink-receiver.