摘要:
A method of forming authenticated images on image areas of a receiver to form a series of viewable images such as postal stamps including moving a colorant donor element having a plurality of transferable colorants into transferable relationship with the receiver, the colorant donor element includes a representation of an image and marks which authenticate the image having colorant over such representation and marks; and transferring colorants onto the receiver in accordance with the representation and marks in the colorant donor element to form authenticated images in the receiver.
摘要:
An apparatus for obtaining an image of a tooth having at least one light source providing incident light having a first spectral range for obtaining a reflectance image from the tooth and a second spectral range for exciting a fluorescence image from the tooth. A polarizing beamsplitter in the path of the incident light from both sources directs light having a first polarization state toward the tooth and directs light from the tooth having a second polarization state along a return path toward a sensor, wherein the second polarization state is orthogonal to the first polarization state. A first lens in the return path directs image-bearing light from the tooth toward the sensor, and obtains image data from the portion of the light having the second polarization state. A long-pass filter in the return path attenuates light in the second spectral range.
摘要:
A method for caries detection uses an image capture device (30, 32) to obtain fluorescence image data from the tooth (20) by illuminating the tooth to excite fluorescent emission. A first enhanced image of the tooth is then obtained by illuminating the tooth at a first incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. A second enhanced image of the tooth is then obtained by illuminating the tooth at a second incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. The first and second enhanced images are then analyzed to select and display the best-contrast image. This method provides high contrast images for carious regions (58) on all tooth surfaces.
摘要:
A method and a device are disclosed for transdermal delivery to an animal or human of biological cargo-laden nanoparticles. The particles may include multimodal optical molecular imaging probes. The particles may be delivered by providing them in a form that can be absorbed through the skin and applying them to the skin of an animal or human. The application may be accomplished using biological cargo-laden nanoparticles in a device attachable to the skin. The device may be attached directly to the skin by a device containing a vasodilating agent or agents, or micro needles, or multi-layer time release material. The biological cargo-laden nanoparticles may comprise drugs, vaccines, bio-pharmaceuticals, imaging contrast agents, multimodal imaging contrast agents, biomolecules, or anti-infectives. The device may include a first plurality of different types of biological cargo-laden nanoparticles located in a corresponding second plurality of separate time release layers.
摘要:
A method for caries detection uses an image capture device (30, 32) to obtain fluorescence image data from the tooth (20) by illuminating the tooth to excite fluorescent emission. A first enhanced image of the tooth is then obtained by illuminating the tooth at a first incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. A second enhanced image of the tooth is then obtained by illuminating the tooth at a second incident angle, obtaining a back-scattered reflectance image data from the tooth tissue, and combining the back-scattered reflectance image data with the fluorescence image data. The first and second enhanced images are then analyzed to select and display the best-contrast image. This method provides high contrast images for carious regions (58) on all tooth surfaces.
摘要:
The present disclosure relates to an article having a fiber including an antimicrobial agent to inhibit growth of microorganisms. The article inhibits the growths of microorganisms in biological, physiological fluids, and non-biological solutions. The article includes a fibrous structure and silver halide particles applied to the fibers to inhibit the growth of the microorganism.
摘要:
This invention relates to an antimicrobial composition comprising an antimicrobial compound and a polyethylene-polyvinylalcohol copolymer. It further relates to a medium having antimicrobial properties comprising a support and a layer comprising an antimicrobial composition comprising an antimicrobial compound and a polyethylene-polyvinylalcohol copolymer.
摘要:
A method and apparatus for modifying images. The method includes the steps of analyzing a digital image file of an image so as to identify at least one predetermined colorimetric parameter; and automatically modifying that portion of said image having said at least one predetermined colorimetric parameter to a second predetermined colorimetric parameter so as to produce a modified digital image.
摘要:
A postal assembly and method of making the assembly. The assembly includes an official postal product have a designated area which is modified so as to provide a desired visual affect with an personal image that is to be placed in said designated area.
摘要:
A method and apparatus for printing an image on a large surface area or walkway provides for imagewise marking of the surface with a color marking solution, to form a visible image on the surface during an image recording mode of a marking engine. The marking engine includes a scanner and the marking engine moves along the surface and operates the scanner to sense a crude image upon the surface and generates data signals representing the crude image or boundaries defined by the crude image scanned. In response to data signals the marking engine is operated to print an enhanced image of the crude image and/or to color the crude image so that the printing overlies the crude image.