Abstract: A projection system includes projection units configured to project an image on a projection body; a preparing unit configured to prepare calibration-use images; an extraction unit configured to extract, from each of the calibration-use images, at least grating points indicating a distortion in a projected image of one of the projection units and alignment points of the projected image of the one of the projection units or another one of the projection units; a conversion unit configured to convert, onto a common coordinate system, the grating points of the projected images of the projection units extracted from the calibration-use images, based on alignment points common to the calibration-use images; and a geometric correction coefficient calculation unit configured to calculate a geometric correction coefficient for providing a projection image to be projected from the projection units, based on the grating points on the common coordinate system.

Abstract: A pattern processing device includes: an input unit to input an input image containing a plurality of pattern elements; an extraction unit that calculates edge intensities of pixels from the input image so as to extract edge pixels; an evaluation unit that obtains evaluation values for determining whether the pixels are foreground pixels or background pixels, based on comparison result between first thresholds set corresponding to the edge pixels and pixel values of pixels contained in vicinity regions of the edge pixels; a binarization determining unit that determines whether the pixels are the foreground pixels or the background pixels by comparing the evaluation values with a predetermined second threshold, and a coupling component extraction unit that extracts pixel coupling components obtained by coupling the pixels adjacent in any direction among the pixels determined to be the foreground pixels.

Abstract: An apparatus, method, system, computer program and product, capable of applying edge enhancement to an image based on characteristics of the image.

Abstract: An apparatus, method, system, computer program and product, capable of applying edge enhancement to an image based on characteristics of the image.

Abstract: The current invention is directed to further improve the character recognition process based upon the comparison of identification value in a sample image and a reference image by adjusting the identification value of the sample image. The adjustment is made based upon a predetermined feature of the sub-area or a mesh region of the images. The desired improvement in accuracy is obtained especially for recognizing handwritten characters.