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Hideya Aragaki

Hideya Aragaki, Tokyo JP

Patent application numberDescriptionPublished
20090060323NOISE REMOVAL DEVICE, NOISE REMOVAL METHOD, AND COMPUTER READABLE RECORDING MEDIUM - A noise removal device that removes noise from an image signal includes: a separation unit that separates the image signal into at least two subband signals; a parameter setting unit that sets a plurality of coring ranges in relation to at least one of the subband signals; and a coring unit that performs coring processing on the basis of the plurality of coring ranges.03-05-2009
20090091643Image-Acquisition Apparatus - An image-acquisition apparatus is provided, including a correction-coefficient calculating unit 04-09-2009
20090167901IMAGE-ACQUISITION APPARATUS - The object is to provide a uniform impression of noise for an entire image signal by performing grayscale conversion and noise reduction in a balanced manner. The signal processing unit performs first signal conversion on an image signal from an image-acquisition device and transfers the processed image signal to a correction-coefficient calculation unit. The correction-coefficient calculation unit calculates, on the basis of the image signal from the signal processing unit, an area correction coefficient for each area used for grayscale conversion of each area. A noise reducing unit uses the area correction coefficients calculated by the correction-coefficient calculation unit to perform noise reduction on the image signal from the image-acquisition device and transfers the processed signal to the signal processing unit. The signal processing unit performs grayscale conversion on the areas of the noise-reduced image signal and transfers the signal to the compressing unit using the area correction coefficients.07-02-2009
20100027885COMPONENT EXTRACTION/CORRECTION DEVICE, COMPONENT EXTRACTION/CORRECTION METHOD, STORAGE MEDIUM AND ELECTRONIC EQUIPMENT - Provided is a component extraction/correction device, comprising: a decomposition unit that decomposes an original image signal into a plurality of frequency bands to generate a plurality of band signals; an extraction unit that extracts a skeleton component from among a plurality of components constituting the band signal; a first correction unit that corrects the extracted skeleton component by using the band signal and one component other than the skeleton component among the plurality of components; and a second correction unit that corrects the one component by using the corrected skeleton component and the band signal.02-04-2010

Hideya Aragaki, Hino-Shi JP

Patent application numberDescriptionPublished
20090135278IMAGE PROCESSING DEVICE AND COMPUTER-READABLE STORAGE MEDIUM - An image processing device that processes an image signal in which at least one of a predetermined plural number of color signals intended to constitute the image signal in each pixel is missing in accordance with a pixel position comprises: a component separation unit that separates the color signal into a plurality of components including a first component U, which is a skeleton component, and a second component V obtained from the residual difference between the color signal and the first component; a first interpolation unit that interpolates the first component U such that the first component U in a pixel position in which the color signal is missing is interpolated; and a second interpolation unit that interpolates the second component V such that the second component V in a pixel position in which the color signal is missing is interpolated.05-28-2009
20100097503IMAGE ACQUISITION APPARATUS AND PROGRAM RECORDING MEDIUM - An image acquisition apparatus includes a plurality of pupil-division lenses configured to pupil-divide a light flux of the object image light passed through an optical imaging system in an area on a surface of an image sensor, a coordinate recording unit configured to record coordinate information to specify the area on the surface of the image sensor, a correction unit configured to execute, based on an optical characteristic of the plurality of pupil-division lenses corresponding to the area and characteristics of the image sensor, a process of correcting the image signal obtained by the image acquisition operation of the image sensor, according to the recorded coordinate information, and a focus detection unit configured to detect a focal point based on selected one of the image signal before the correction process and the image signal after the correction process.04-22-2010