Abstract: An image reproduction system and methods for providing colorant data to an end device. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Abstract: An image reproduction system and methods for providing colorant data to an end device are disclosed. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived-chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Abstract: An image reproduction system and methods for providing colorant data to an end device. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived-chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Abstract: An image reproduction system and methods for providing colorant data to an end device are disclosed. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived-chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Abstract: An image reproduction system and methods for providing colorant data to an end device are disclosed. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived-chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Abstract: An image reproduction system and methods for providing colorant data to an end device. A method includes extracting general HSV value data for each pixel of an image from image data. For each pixel, the general HSV value data is transformed to generate universal perceived brightness, Bp, and universal perceived-chroma, Cp, value data. End-device colorant data associated with the general HSV value data is retrieved for each pixel and scaled using the Bp and Cp value data to obtain scaled end-device colorant data. The scaled end-device colorant data is transmitted to the end device.

Abstract: A reflectometer system for use with a non-contact actinic system includes a primary lens, and an illumination source and a detector positioned on an observation side of the primary lens opposite a goods production area and sample region. The illumination source emits an illumination beam through an illumination beam void between the primary lens and the housing, which is directed into the goods production area and sample region, and onto a flow or static sample of material to be tested. The material being tested then create a reflected beam, which shines back to the observation side of the primary lens through the primary lens to the detector. The general alignment of the illumination beam and the reflected beam create an extended sample region within the goods production area, as well as a compact reflectometer system structure.

Abstract: A medical diagnostic imaging system is employed to generate two or more diagnostic images with each image generated using a different imaging modality. The imaging system includes an imaging device for generating the diagnostic image information, an operator interface for controlling the operation of the imaging device, an imaging device control module that operates on the diagnostic image information generated by the imaging device and sends the processed image information to a display device. After first generating two or more test images that are used to identify target tissue and to derive functions that are later used during the diagnostic process to identify target tissue and to assign vector magnitudes to the identified target tissue, two or more diagnostic images are then generated and the color in each image is quantified.

Abstract: A medical diagnostic imaging system is employed to generate two or more diagnostic images with each image generated using a different imaging modality. The imaging system includes an imaging device for generating the diagnostic image information, an operator interface for controlling the operation of the imaging device, an imaging device control module that operates on the diagnostic image information generated by the imaging device and sends the processed image information to a display device. After first generating two or more test images that are used to identify target tissue and to derive functions that are later used during the diagnostic process to identify target tissue and to assign vector magnitudes to the identified target tissue, two or more diagnostic images are then generated and the color in each image is quantified.

Abstract: A color management system for image reproduction and rendering. Images are rendered to appear perceptually accurate, rather than merely calorimetrically accurate. For example, an image reproduced by a color printer will be perceived as an accurate reproduction of the same image displayed on a computer screen, or that an image displayed on a computer screen is perceived as an accurate reproduction of the same scanned image or photographed image, even though the reproductions may be constrained by other factors, such as paper or substrate darkness, or a limited color gamut of the reproduction process.

Abstract: A diffraction grating and a prism with the appropriate characteristics are employed to provide a combined dispersive characteristic that is substantially linear over the visible spectrum. Radiation from the grating and prism is collimated by a lens towards a detector array. The grating or a telecentric stop between the grating and prism is placed at a focal point of the lens in a telecentric arrangement so that equal magnification is achieved at the detector array. If the detector array is replaced by a plurality of optical channels, a multiplexer/demultiplexer is obtained. A one or two dimensional detector array may be used for detecting the characteristics of a radiation beam. Alternatively, a one or two dimensional array of optical channels may be employed in a multiplexer or demultiplex arrangement with a single output/input optical channel.

Abstract: A diffraction grating and a prism with the appropriate characteristics are employed to provide a combined dispersive characteristic that is substantially linear over the visible spectrum. Radiation from the grating and prism is collimated by a lens towards a detector array. The grating or a telecentric stop between the grating and prism is placed at a focal point of the lens in a telecentric arrangement so that equal magnification is achieved at the detector array. If the detector array is replaced by a plurality of optical channels, a multiplexer/demultiplexer is obtained.

Abstract: A diffraction grating and a prism with the appropriate characteristics are employed to provide a combined dispersive characteristic that is substantially linear over the visible spectrum. Radiation from the grating and prism is collimated by a lens towards a detector array. The or a telecentric stop between the grating and prism is placed at a focal point of the lens in a telecentric arrangement so that equal magnification is achieved at the detector array. If the detector array is replaced by a plurality of optical channels, a multiplexer/demultiplexer is obtained.

Abstract: A diffraction grating and a prism with the appropriate characteristics are employed to provide a combined dispersive characteristic that is substantially linear over the visible spectrum. Radiation from the grating and prism is collimated by a lens towards a detector array. The grating or a telecentric stop between the grating and prism is placed at a focal point of the lens in a telecentric arrangement so that equal magnification is achieved at the detector array. If the detector array is replaced by a plurality of optical channels, a multiplexer/demultiplexer is obtained.

Abstract: A diffraction grating and a prism with the appropriate characteristics are employed to provide a combined dispersive characteristic that is substantially linear over the visible spectrum. Radiation from the grating and prism is collimated by a lens towards a detector array. The grating or a telecentric stop between the grating and prism is placed at a focal point of the lens in a telecentric arrangement so that equal magnification is achieved at the detector array. If the detector array is replaced by a plurality of optical channels, a multiplexer/demultiplexer is obtained.

Abstract: An efficient technique for calibrating a scanner relative to a particular colorant set having N primary colorants. Once the scanner is calibrated, the scanner's device-dependent tristimulus values for an arbitrary color are transformed to a device-independent representation of the arbitrary color in a computationally efficient manner. The technique exploits the fact that the color space defined by the primary colorants can be advantageously partitioned, with each partition being represented by a transformation matrix that accurately characterizes the transformation for that partition of the space. The partitioning is characterized by a set of M key colors (in a specific embodiment, M=2N), each of which defines a boundary between adjacent partitions.

Abstract: Bulk material formed by a multiplicity of individual moving particles is heat-treated by directing a light beam into an observation volume of the material and generating light reflections off at least one particle in the observation volume. A characteristic of the light reflections which is indicative of a desired extent to which the material is to be heat-treated is identified and the material is subjected to a heated environment and thereby heat-treated. The light reflections are monitored for the characteristic, and subjecting the material to the heated environment is ended in response to detecting the characteristic of the light reflections.

Abstract: A reflectometer for use with a roasting system includes a laser diode, a lens and a photodetector. The laser diode emits a laser beam having a wavelength corresponding to the maximum actinic response of the items being roasted. The laser beam is reflected off a mirror into a collecting volume of the items being roasted. The items being roasted then reflect light through the lens and to the photodetector. The system also includes a cross polarizer and a narrow-band filter between the lens and photodetector in order to filter undesirable reflected light. The collecting volume and the detector are within the searchlight cone defined by the lens and its focal point such that the reflected light from the collecting volume has a constant illumination.

Abstract: A desktop color measurement system that includes an instrument capable of making color measurements. The system includes a host computer and a digital color sensor (DCS) in communication with the host computer. The DCS includes optical elements for making spectral measurements, and control electronics for controlling the optical elements. In a specific embodiment, the DCS is dedicated to the mechanics of acquiring the raw data. The host computer, which may be a personal computer, performs all the calculations needed to convert raw measurement values into spectral data and other color representations such as tristimulus values and density. This also allows the system to function as a calorimeter and a densitometer as well as a spectrophotometer. The DCS control circuitry includes non-volatile writable storage for information obtained during a factory calibration procedure, which information allows the user to recalibrate the DCS in the field.

Abstract: A technique for calibrating a scanner wherein once the scanner is calibrated, the scanner's device-dependent tristimulus values (e.g., RGB) for an arbitrary color are transformed to a device-independent representation (e.g., XYZ) of the arbitrary color in a computationally efficient manner. The scanner is characterized in a manner that a corrected device-independent representation of an arbitrary scanned color can be determined on the basis of a pair of chromaticity coordinates in a chromaticity space having (i) a pair of chromaticity coordinates that span hue and chroma (saturation), and (ii) a lightness coordinate that is a luminance correlate (monotonic function of luminance). A look-up table stores XYZ values and a lightness value. A set of XYZ values and a lightness value are retrieved from the table as addressed by a pair of chromaticity values corresponding to the scanned value.