| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 358512000 | With color filters | 7 |
| 20080247008 | Scanner and method of scanning - A scanner and a method of scanning an image on an original includes an optical sensor having sensor elements for each of three basic colors that is used to generate pixel values of the scanned image. Each pixel value represents an optical density of a pixel of the image and is generated mainly on the basis of a signal of only one of the sensor elements. Each of the sensor elements for each of the basic colors is used to generate pixel values representing substantially different parts of the image. | 10-09-2008 |
| 20090059323 | COLOR IMAGE FORMING APPARATUS AND COLOR IMAGE CORRECTING METHOD - According to the present invention, there is provided a color image forming apparatus which includes image forming units forming images, each for each color component, and superimposes the images of the color components on one another to form a color image. The image forming apparatus includes a scan line changing unit shifting the position of each pixel in a sub scanning direction for each color component of halftone image data to be processed so as to cancel a shift amount of a scan line on an image carrier in each of the image forming units in the sub scanning direction; an interpolation inhibited area determining unit determining an interpolation inhibited area in the image data; and an interpolation unit applying an interpolation process for smoothing a pixel-level shift caused by shifting of image data by the scan line changing unit to the image data excluding the interpolation inhibited area. | 03-05-2009 |
| 20090141320 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus reads out image data stored in an image memory unit, performs size reduction, when the read out image data is color image data, on a plurality of pieces of color component data of the color image data by using different pixel number reducing circuits and different filter circuits, performs size reduction, when the read out image data is monochrome image data, on a plurality of pieces of monochrome image data by using the different pixel number reducing circuits and different filter circuits, and generates reduced-size images for a thumbnail display from the reduced-size image data. | 06-04-2009 |
| 20090244662 | IMAGE READING APPARATUS AND IMAGE READING METHOD - The present invention aims to avoid problems such as not detecting line-shaped noises or erasing images on the sheet by erroneously detecting line-shaped noises. A copy machine | 10-01-2009 |
| 20110261425 | IMAGE READING APPARATUS, IMAGE DATA OUTPUT PROCESSING APPARATUS, AND IMAGE READING METHOD - Carried out are (i) an infrared light scanning process in which light is directed to a document in a state in which a visible light cut filter is provided in an optical path, in which the light is directed from a light source to the document, reflected from the document, and then received by a light receiving element, so that the light receiving element receives the reflected light from the document and prepares image data S | 10-27-2011 |
| 20120033275 | SYSTEMS AND METHODS FOR COLOR DEFRINGING - A system and method for defringing chromatic aberrations that occur in imaging devices such as scanners. The system comprises shift filters to shift lines in the various color planes together. In addition in each color plane, a spread filter is used to compensate for the unequal point spread functions of each color. Furthermore, the results can be enhanced by filtering in the luminance-chrominance space. | 02-09-2012 |
| 20120257265 | One-pass filtering and infrared-visible light decorrelation to reduce noise and distortions - A scanning device includes a scanning mechanism and a processing mechanism. The scanning mechanism scans an image fixed on a medium to generate a digital infrared representation of the image and a digital visible light representation of the image. The processing mechanism substantially reduces effects of noise and distortions within the digital visible light representation of the image in one pass. The processing mechanism at least decorrelates visible light aspects from the infrared representation of the image and employs a one-pass filter that uses both the infrared and the visible light representations of the image. | 10-11-2012 |
