Abstract: A method for calibrating an image printing system that includes a plurality of parallel printers, where each of the printers has a minimum luminance value. The method includes determining a minimum luminance value profile for the plurality of printers in the image printing system based on the minimum luminance values of each of the printers in the image printing system, determining a black point compensation function based on the determined minimum luminance value profile, adjusting luminance values for input image data using the determined black point compensation function, and rendering, with the parallel printers, images on substrates based on the input image data with adjusted luminance levels.

Abstract: A printing apparatus, which prints a composite image formed of an enlargement portion and a non-enlargement portion of an original image on a printing medium, includes: an enlargement portion determining section which determines the enlargement portion, of the original image, which is to be enlarged in the composite image; an enlargement rate determining section which determines an enlargement rate of the enlargement portion with respect to the original image; a print data generating section which generates print data for printing the composite image based on image data of the original image, the enlargement portion determined by the enlargement portion determining section, and the enlargement rate determined by the enlargement rate determining section; and a printing mechanism which prints the composite image on the printing medium based on the print data generated by the print data generating section.

Abstract: A color correction method includes displaying an expected print image of a test image of the image forming apparatus on a monitor, outputting the test image to the image forming apparatus, performing color matching between the output test image and an expected print image on the monitor, changing an ICC profile of the monitor according to the performed color matching, and generating a print data using the changed ICC profile. Also a print controlling terminal which performs the color correction method.

Abstract: An image processing apparatus and image processing method perform adaptive correction at edges of an image to be printed in accordance with the conditions of output equipment outputting an image to be printed. The image processing apparatus includes: a printed sample generating component for generating a printed sample having a plurality of gray scale regions for correcting gray scale at edges of the image to be printed; a gray scale region selecting component for selecting from the printed sample generated by the printed sample generating component a gray scale region for realizing visually uniform gray scale at the edges; and an edge image correcting component for correcting edge regions of the image to be printed in accordance with a gray level of the gray scale region selected by the gray scale region selecting component.

Abstract: What is disclosed is a novel system and method for text vectorization for bitmap images with reduced artificial discontinuities. Dominant points are identified in a bitmap character image. An initial curve is fitted to edge points of the character image in a vicinity of a selected dominant point. A set of boundary parameters in a vicinity of the selected dominant point are estimated based upon the initial curve. The selected dominant point is then classified as one of a sharp dominant point and a smooth dominant point based upon the boundary parameters or alternatively upon predefined classifications produced by an optical character recognition process. Curves are fitted between the selected dominant point and adjacent dominant points. The fitted curves maintain the estimated boundary parameters in the vicinity of smooth dominant points. A vectorized representation of the text character image based upon the fitted curves is produced as output.

Abstract: What is disclosed is a novel system and method for obtaining optimum CMYK values for spot colors, with significantly lower computational effort, by using a set of printer profiles with different pre-computed GCR strategies. Various versions are discussed on how to utilize and/or choose among these profiles for each spot color. The present invention is applicable to spot color emulation for CMYK as well as N-color printing, and can be used to optimize one or more image quality attributes, including graininess, mottle, color stability, ink cost, etc. Various embodiments are disclosed.

Abstract: An image forming apparatus includes a scanning unit which scans a light beam on a photosensitive member in accordance with image data, and a smoothing unit which performs a smoothing for a jaggy of a scan line of a light beam scanned on the photosensitive member by the scanning unit. The smoothing unit does not perform the smoothing when the scanning unit scans a light beam in accordance with image data representing a halftone image.

Abstract: An image processing apparatus which may include a grayscale modulator forming a ?? modulator. The modulator may include an adder that adds the pixel value of an image and an output of a feedback arithmetic unit, a quantizing unit that quantizes an output of the adder and outputs a quantized value including a quantization error as the result of ?? modulation, a subtractor that calculates the quantization error, and the feedback arithmetic unit that filters the quantization error and outputs the filtering result to the adder. The filter coefficient of filtering by the feedback arithmetic unit may be determined such that the amplitude characteristics of noise shaping by the ?? modulator in a frequency band that is equal to or more than an intermediate frequency band are the inverse characteristics of the spatial frequency characteristics of the human eye.

Abstract: A halftone screen applicable to an electrophotographic printer is created. Hence, minimum and maximum sizes of a halftone dot and a cluster size are input. When the halftone-dot size reaches the minimum size, the number of blackened pixels in the halftone dot is calculated. When the halftone-dot size is smaller than the minimum size, or when the number of blackened pixels doesn't reach the cluster size, and the halftone-dot size is smaller than the maximum size, the halftone dot is. When the number of blackened pixels becomes equal to or larger than the cluster size or when the halftone-dot size reaches the maximum size, a halftone screen is partitioned into polygons to have centroids of the halftone dots as kernel points. Then, each halftone dot is grown by blackening pixels to have the centroid as the center of growth.

Abstract: A host PC that creates image data used in an ink-jet printer capable of landing ink with a multi-pass method includes an image data creation means that creates the image data so that the ink-jet printer forms an image with a halftone dot which is configured so that a relationship between a pass number and a dot pitch in a vertical scanning direction of an ink-jet head does not become an integral multiple relationship when the pass number is odd number, and a dot pitch does not become even number when the pass number is even number.

Abstract: A multi-value code image generation part generates a multi-value code image by assigning first code information, which is obtained by encoding a dot pattern in a specific area, to each growth core. A multi-value code image affine transformation part performs affine transformation on the multi-value code image. A multi-value code image assignment part assigns second code information to each of the growth cores before the affine transformation according to the first code information of at least one growth core after the affine transformation, which growth core neighbors close to the growth core before the affine transformation. A dot pattern development part develops the dot pattern for the specific area at each of the growth cores before the affine transformation according to the second code information.

Abstract: What is disclosed is a system and method for generating a destination profile LUT. In a manner more fully described herein, a high resolution LUT (e.g., 100-cube LUT) is received. Regions of high curvature of the gamut of an image output device are identified. A non-parametric dynamic optimization node selection method is utilized to select a subset of nodes from the high resolution profile LUT which captures these nonlinearities. Down-sampling the high resolution LUT produces a low resolution LUT. The low resolution LUT is up-sampled to a size of the high resolution LUT to obtain a reconstructed LUT. An error is then calculated between the reconstructed LUT and high resolution LUT. The process of node selection is iteratively repeated until all the subsets of nodes are considered. A destination profile LUT is then generated from the subset of nodes with the least error.

Abstract: An image processing apparatus includes a binarization section, a determination section and an area setting section. The binarization section binarizes a given image. The determination section determines whether or not a pixel to be determined is effective in accordance with the number of pixels of one value of a binary value in each of determination areas. Each of the determination areas are placed so as not to contain the pixel to be determined in the binarized image and so as not to overlap in a predetermined direction of the pixel to be determined. The area setting section sets an area including the pixel determined effective in the determination section.

Abstract: An information processing apparatus that generates print data sent to a printing device acquires variable information from a plurality of devices, the variable information being finalized when the printing device carries out printing. The apparatus selects variable information from the plural pieces of variable information acquired from the plurality of devices in accordance with its own operation environment and operating location. The apparatus then adds the selected variable information to the print data and outputs the resultant.

Abstract: An image reproduction apparatus includes a scanning unit, a transparent scanning bed optically coupled to the scanning unit, and an adjustable shade associated with the scanning bed, wherein the adjustable shade is configured to be selectively placed across the scanning bed to reduce a portion of the scanning bed.

Abstract: A computer peripheral that may operate as a scanner. The scanner captures image frames as it is moved across an object. The image frames are formed into a composite image based on computations in two processes. In a first process, fast track processing determines a coarse position of each of the image frames based on a relative position between each successive image frame and a respective preceding image determine by matching overlapping portions of the image frames. In a second process, fine position adjustments are computed to reduce inconsistencies from determining positions of image frames based on relative positions to multiple prior image frames. When the determined position of multiple image frames overlap, pixels in the composite image may be formed by combing values of pixels in the image frames, which improves image quality of the composite image.

Abstract: A computer peripheral that may operate as a scanner. The scanner captures image frames as it is moved across an object. The image frames are formed into a composite image based on computations in two processes. In a first process, fast track processing determines a coarse position of each of the image frames based on a relative position between each successive image frame and a respective preceding image determine by matching overlapping portions of the image frames. In a second process, fine position adjustments are computed to reduce inconsistencies from determining positions of image frames based on relative positions to multiple prior image frames. Processing of the image frames may allow a scan of an object to be suspended and resumed automatically when a user lifts the scanner, by deleting out of focus image frames and matching subsequent image frames to previously stored image frames.

Abstract: A method determines displacements between pixels in a captured image of a reference pattern and corresponding pixels in the reference pattern including the steps of capturing the image of the reference pattern having a source pattern modulated by a plurality of carrier frequencies in a corresponding plurality of directions in the source pattern, demodulating at least three of the carrier frequencies in the captured image to form an amplitude image and a wrapped phase image for each of the carrier frequencies, and combining the wrapped phase images weighted by the amplitude images to determine the displacements between pixels in the captured image and corresponding pixels in the reference pattern.

Abstract: A scan bar assembly having a scan element including a length direction; a drive gear; a follower gear; and a housing having a mounting region for mounting the scan element onto the housing; a first mounting member for the drive gear; and a second mounting member for the follower gear, wherein the first and second mounting members and the housing are integrally formed as a single part.

Abstract: An image forming device includes an image forming unit forms an image based on image data by using at least one of a plurality of colors of developer. A test image forming unit controls the image forming unit to form a test image based on test image data. A measuring unit measures density of the test image. A color density correction data creating unit creates the color density correction data based on the measured density. A color order setting unit sets a color order. A performing unit performs a process to create color density correction data for the plurality of colors in the color order by controlling the test image forming unit, the measuring unit, and the color density correction data creating unit. A print image data acquiring unit acquires print image data while the performing unit is performing a color density correction data creating process for a current color.

Abstract: An image processing apparatus for use with a printed substrate is disclosed. The image processing apparatus comprises an imaging device configured to receive light reflected from a portion of multiple patches of a colorbar on the printed substrate and configured to process color data from the light reflected from the portion of multiple patches of the colorbar.

Abstract: An image processing apparatus includes an obtaining unit, a determination unit, a setting unit, and a processing unit to perform an image edge intensifying processing. The obtaining unit obtains image data by reading a document. The determination unit determines an image edge direction. The setting unit sets an edge intensifying processing intensity based on the image data and a processing intensity determined corresponding to a difference between resolution in a main scanning direction and resolution in a sub-scanning direction. The processing unit performs the image edge intensifying processing according to the set intensity. In response to the resolution of the image data being higher in the sub-scanning direction than in the main scanning direction, the setting unit sets a higher intensity of the edge intensifying processing in response to the edge direction being along the sub-scanning direction than in response to the edge direction being along the main scanning direction.

Abstract: A mechanism for scanning and capturing digital images using residue detection. Upon detecting a document placed on a scanning surface of a scanning device, the illustrative embodiments detect a residue deposited on the document. The illustrative embodiments determine a portion of the document to be scanned based on a location of the residue on the document. The illustrative embodiments then scan the portion of the document.

Abstract: A holographic reconstruction device is designed such that visible resolution of the reconstruction of a scene is matched to the resolution capability of the human eye, to the imaging properties of the reconstruction means used or to the resolution capability of the light modulation means used. A grid scale for the object points is generated by system control means in each case in a plane of intersection, which grid scale cannot be used to separately resolve adjacent object points in the plane of intersection, and the compilation of object points of the respective plane of intersection to form an object point group with adjacent object points which can be separately resolved is carried out. In holographic displays, the invention is used to reduce speckle patterns and reduce the number of the holograms of object points of the scene, which are to be calculated and coded, and the calculation complexity.

Abstract: A multibeam scanning device, comprising: a plurality of first optical systems, each of the plurality of optical systems including a light source unit configured to emit a non-collimated light beam, and an optical element having a predetermined power and having an optical effect on the laser beam; a second optical system arranged on a downstream side of the plurality of first optical systems, including a first deflector on which light beams emitted by the plurality of first optical systems are incident, the first deflector being to deflect the laser beams, and a common optical system configured to change degree of divergence of each of the plurality of light beams; and an optical path shifting system configured to translate an incident optical path of the light beam which is emitted by the light source and incident on the optical element is provided.

Abstract: A rotary construction laser is disclosed. The rotary construction laser having a deflection device rotatably mounted around an axis of rotation for emitting laser light as well as a stepper motor for rotating the deflection device around the axis of rotation.

Abstract: An optical module includes a mirror which reflects input light and which outputs output light; and a mirror control section which is opposite to the mirror and which controls, at the time of the input light being reflected from a reflecting surface of the mirror, the reflecting surface by distorting the reflecting surface according to voltage applied to the mirror so as to output the output light an optical coupling characteristic of which changes. By using this optical module, the optical coupling characteristic of the output light changes.

Abstract: Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties.

Abstract: An electrochromic device includes a first electrode, a second electrode disposed opposite the first electrode, a porous electrochromic layer disposed on the first electrode or the second electrode, and an electrolyte disposed between the first electrode and the second electrode. The porous electrochromic layer includes different sized nanoparticle clusters, and each nanoparticle cluster includes a plurality of nanoparticles and an electrochromic material.

Abstract: A light control device 1 includes a light source 10, a prism 20, a spatial light modulator 30, a drive unit 31, a control unit 32, a lens 41, an aperture 42, and a lens 43. The spatial light modulator 30 is a phase modulating spatial light modulator, includes a plurality of two-dimensionally arrayed pixels, is capable of phase modulation in each of these pixels in a range of 4? or more, and presents a phase pattern to modulate the phase of light in each of the pixels. This phase pattern is produced by superimposing a blazed grating pattern for light diffraction and a phase pattern having a predetermined phase modulation distribution, and with a phase modulation range of 2? or more.

Abstract: An optical filter is provided, including a first plurality and second plurality of alternating first and second material layers, where the first plurality of layers is at a first angle to incident light and has a cut-on edge, and the second plurality of layers is at a second angle to the incident light and a cut-off edge; where polarization splitting of the first plurality of layers at the cut-on edge and polarization splitting of the second plurality of layers at the cut-off edge do not exceed approximately 1 percent for any first and second angle between approximately 0 and 40 degrees; and the s-stopband wavelength of the second plurality of layers is approximately less than or equal to the cut-on edge wavelength, which is less than the cut-off edge wavelength, which is approximately less than or equal to the s-stopband wavelength of the first plurality of layers.

Abstract: A method of fabricating an electrophoretic display device includes forming a gate electrode, a gate line, a data line and a thin film transistor on a substrate having a display region, a non-display region at a periphery of the display region and a cut portion at an outer region of the non-display region; forming a passivation layer over the thin film transistor; forming a pixel electrode connected to the thin film transistor; forming an align mark in the cut portion; attaching an electrophoresis film onto the pixel electrode; forming a color filter layer on the base film using the align mark; wherein the step of forming the align mark is simultaneously performed with one of the step of forming the gate line, the step of forming the data line, and the step of forming the pixel electrode.

Abstract: A display system for a portable device is switchable by electrical addressing. The display system can absorb ambient light and reflect at least a portion of the absorbed light to render an image on a surface of the display. The display includes a plurality of pixel electrodes. Each of the plurality of pixel electrodes includes linkers with acceptor molecules and donor molecules that form groups having respective color properties. In an off-state, a respective pixel is configured to reflect white light. In an on-state, a respective pixel is configured to reflect light according to the molecular grouping of the acceptor-donor group.

Abstract: An electrophoretic liquid is disclosed that includes first particles that have the property of scattering light over an entire visible range and are positively or negatively charged; second particles that have the property of absorbing light of a specific wavelength range in the visible range and scattering light of ranges other than the specific wavelength range and are charged to a polarity opposite to that of the first particles; and a dispersion medium that has the property of allowing the light of the specific wavelength range absorbed by the second particles to pass through and absorbing the light of the ranges other than the specific wavelength range. In the electrophoretic liquid, the first particles and the second particles are dispersed in the dispersion medium.

Abstract: A multi-color electrophoretic medium contains first, second and third species of particles, the particles having substantially non-overlapping electrophoretic mobilities and bring of three different colors. The particles are dispersed in a fluid having a fourth color. A method for driving such a display is also described.

Abstract: An electronic paper unit including a flexible substrate, a thin film transistor layer, an electronic ink layer, a waterproof layer, and a sealant is provided. The thin film transistor layer is disposed on the flexible substrate. The electronic ink layer is disposed on a surface of the thin film transistor layer. The waterproof layer is disposed on the electronic ink layer. An edge surface of the waterproof layer and an edge surface of the electronic ink layer form a side wall where there is a first acute angle or a first obtuse angle between the side wall and the surface of the thin film transistor layer. The sealant is coated and covered on the side wall and the surface. A method for fabricating the electronic paper unit is also provided.

Abstract: A process for producing a color electro-optic display uses an electro-optic sub-assembly comprising an electro-optic layer and a light-transmissive electrically-conductive layer. This sub-assembly is laminated to a backplane comprising a plurality of electrodes with the electro-optic layer disposed between the backplane and the electrically-conductive layer. A flowable material is placed over the sub-assembly and a color filter array is placed over the electrically-conductive layer and aligned with the electrodes of the backplane to form the color electro-optic display.

Abstract: The PLC-type delay demodulation circuit includes a planar lightwave circuit that is provided on one PLC chip and demodulates a DQPSK signal. The planar lightwave circuit includes a Y-branch waveguide that branches a DQPSK-modulated optical signal into two optical signals and first and second MZIs that delay the branched optical signals by one bit. A wave plate is provided in central portions of first and second arm waveguides of the first MZI and first and second arm waveguides of the second MZI in such a manner that the wave plate intersects all of the four arm waveguides, the four arm waveguides being close to one another in a portion where the wave plate is provided.

Abstract: Fiber-laser light is Raman shifted to eye-safer wavelengths prior to spectral beam combination, enabling a high-power, eye-safer wavelength directed-energy (DE) system. The output of Ytterbium fiber lasers is not used directly for spectral beam combining. Rather, the power from the Yb fiber lasers is Raman-shifted to longer wavelengths, and these wavelengths are then spectrally beam combined. Raman shifting is most readily accomplished with a “cascaded Raman converter,” in which a series of nested fiber cavities is formed using fiber Bragg gratings.

Abstract: In a photon pair generating apparatus for generating a pair of correlated photons by hyper-parametric scattering, a light-shaping section irradiates an optical resonator with two beams of light of equal wavelength from different directions, and the optical resonator is configured to emit two correlated photons of different wavelengths in one direction as a pair of correlated photons. This makes it possible to provide a photon pair generating apparatus capable of achieving generation of a pair of correlated photons by a simpler configuration.

Abstract: Methods and apparatus for non-collinear optical parametric ampliffication (NOPA) are provided. Broadband phase matching is achieved with a non-collinear geometry and a divergent signal seed to provide bandwidth gain. A chirp may be introduced into the pump pulse such that the white light seed is amplified in a broad spectral region.

Abstract: An example method includes receiving power measurements for a plurality of optical channels. Deviation measurements representing a difference between respective power measurements and corresponding power targets for the plurality of optical channels are created. Correctable deviations for the plurality of optical channels are determined based on the deviation measurements. The correctable deviations may be determined by projecting the measured deviations into a space that defines Raman gain profiles achievable with a set of channels and pumps. Pump settings for a plurality of pumps are determining based upon the correctable deviations for each channel by solving an optimization problem. The pump setting so determined may be applied to the plurality of pumps.

Abstract: An amplifier optical fiber comprising a central core of a dielectric matrix doped with at least one element ensuring the amplification of an optical signal transmitted in the fiber and a cladding surrounding the central core and suitable for confining the optical signal transmitted in the core. The fiber also comprises metallic nanostructures suitable for generating an electronic surface resonance in the dielectric matrix of central core, the wavelength of said electronic surface resonance corresponding to an excitation level of the element ensuring the amplification.

Abstract: One embodiment of the present method and apparatus encompasses an apparatus that may have: a predetermined length, the self-imaging semiconductor waveguide having first and second opposed sides; quantum wells disposed within the self-imaging semiconductor waveguide along the length of the self-imaging semiconductor waveguide, the quantum wells being formed of a quantum well gain material; microchannel cooler that extends substantially the width of the self-imaging semiconductor waveguide, the microchannel cooler located adjacent the first side of the self-imaging semiconductor waveguide; and a plurality of pump arrays arranged along the microchannel cooler opposed from the first side of the self-imaging semiconductor waveguide; wherein the quantum well gain material is photopumped through the microchannel cooler.

Abstract: An optical filter composite is provided having effective filtering of infrared emissions, such as solar or laser emissions, while providing very high visible light transmission, preserving the ability to differentiate and recognize colors and providing a pleasing overall color as compared to the prior art. The present invention provides for filters that are formed by lamination, infusion and/or coating processes using filtering assemblies having a neutral color with high visible light transmission while also producing high levels of filtration in the infrared and near infrared range to provide effective protection against harmful emissions in these ranges while also producing a filter that has a color that is more pleasing and desirable to the wearer.

Abstract: The optical image stabilizer includes a shift member holding an image stabilizing element and being movable with respect to a center axis, a lock member disposed around the shift member and rotatable about the center axis between a lock position to limit movement of the shift member and an unlock position to release the limit of the movement of the shift member, and a base member including a supporting portion to rotatably support the lock member. The shift member includes protrusions at its plural circumferential places. The lock member includes, in its inner circumferential part, locking portions to receive contact of the protrusions at the lock position so as to limit the movement of the shift member. The supporting portion is formed so as to include plural openings allowing contact of the protrusions with the lock portions and so as to support the inner circumferential part of the lock member.

Abstract: Light from an optical fiber is incident on a frequency dispersion element. The frequency dispersion element disperses the incident light into light beams in different directions according to their frequencies and directs the dispersed light beams to a lens. The lens develops the incident light beams over an xy plane according to their frequencies in a strip-like form. A frequency selective element has pixels arranged in a frequency dispersion direction and brings pixels located at positions corresponding to the frequency to be selected into a reflective state. A light beam selected by the frequency selective element is emitted from an optical fiber through the same path. By changing reflection characteristics of the frequency selective element according to each pixel, optical filter characteristics can be desirably changed so as to achieve change of passband width and frequency shift.

Abstract: A security Device comprises a zero order diffractive microstructure (5) buried within a substrate (3). One or more further optical structures, such as microlenses (1), may be formed on a surface (2) of the substrate (3). The further optical structures modify the optical characteristics of the zero order diffractive microstructure (5). Various alternatives or additional optical structures and methods of producing them are described in additional embodiments.

Abstract: A diffractive lens 11 that includes: a lens base 18, which has a second surface 13 with first and second groups of diffraction grating portions 20 and 21; and a protective coating 17, which is arranged on the first group of diffraction grating portions 20. The first group of diffraction grating portions 20 has a first group of diffraction steps and the second group of diffraction grating portions 21 has a second group of diffraction steps, which is lower in height than the first group of diffraction steps. One of the respective materials of the base 18 and the protective coating 17 has a higher refractive index and a greater Abbe number than the other material. And the second group of diffraction steps is not covered with the protective coating 17.

Abstract: An optical arrangement includes a light source which emits coherent light of a wavelength ?, and a diffraction grating which has a multiplicity of diffraction structures which follow one another periodically at the spacing of a grating period d and are arranged along a base surface, the individual diffraction structures respectively having a blaze flank and an antiblaze flank, the blaze flanks being arranged at an angle ? and the antiblaze flanks being arranged at an angle ? to the base surface, and respectively neighbouring blaze and antiblaze flanks enclosing an apex angle ?, and an incident light beam being arranged at a Littrow angle ?L relative to a grating normal of the diffraction grating.