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Hidenori Takeshima

Hidenori Takeshima, Ebina-Shi JP

Patent application numberDescriptionPublished
20090079876IMAGE PROCESSING APPARATUS, METHOD, AND PROGRAM - An image processing apparatus includes a first receiving unit configured to receive a plurality of frames of an image containing pixel values, a first setting unit configured to set one of the frames as a reference frame, a second setting unit configured to set, of the frames received by the first receiving unit, one frame other than the reference frame as an other frame, a first storage unit configured to store at least one subpixel shift value that is a preset fractional value, and an estimation unit configured to estimate a fractional part of a position of a corresponding point corresponding to a pixel of the other frame to readily select a value closer to the subpixel shift value.03-26-2009
20090110331RESOLUTION CONVERSION APPARATUS, METHOD AND PROGRAM - An apparatus includes unit acquiring a target image as a target of resolution conversion, unit acquiring an additional image from the image source, unit estimating a corresponding point in the target image using corresponding point estimation methods, the corresponding point being associated with at least one pixel in the additional image to obtain corresponding points in the target image, unit setting a pixel value of each pixel included in the additional image as a sampling value for the corresponding point when each pixel is set as a target pixel, to obtain sampling values for pixels included in the additional image, and unit generating an image of a first resolution into which a second resolution of the target image is converted, using pixel values and positions of pixels included in the target image, and the sampling values and positions of the corresponding points.04-30-2009
20090129703SIGNAL PROCESSING METHOD, APPARATUS, AND PROGRAM - A method includes inputting to-be-processed data including a set of first-N-dimensional-coordinate values in an N-dimensional space and first-sampling values, inputting search-pattern data including a set of second-N-dimensional-coordinate values in the N-dimensional space and second-sampling values, setting a set of virtual-corresponding points designated by third-N-dimensional-coordinate values, acquiring input patterns each including third-sampling values within a first range with reference to a corresponding virtual-corresponding point, acquiring search patterns each including fourth-sampling-values within a second range with reference to a corresponding second-N-dimensional-coordinate value of the second-N-dimensional-coordinate values in correspondence with each of the second-N-dimensional-coordinate values, detecting, from the search pattern data, an estimated pattern including one search pattern and having smaller differences with respect to the input patterns than other search patterns, setting sampling values at first positions corresponding to the virtual-corresponding points in the estimated pattern as sampling values at the virtual-corresponding points, and converting a sampling rate of the to-be-processed data.05-21-2009
20090161992IMAGE RESOLUTION INCREASING METHOD AND APPARATUS - An image resolution increasing method include setting a first block which is included in a low resolution image and is located at a first position, and a second block which is included in a high resolution image and is located at a second position, and setting, as an increasing resolution block of the first block, a third block expressed by a second vector obtained by projecting a first vector representing the second block to a linear manifold as a set of vectors that indicate fourth blocks of the second block size, the fourth blocks becoming the first block due to reduced resolution, in a Euclidean space having, as the number of dimensions, a product of the number of pixels arranged vertically in the second block size and the number of pixels arranged horizontally in the second block size.06-25-2009
20090208061IMAGE ANALYSIS METHOD, APPARATUS AND PROGRAM - An image analysis method for analyzing the motion of an object by using the time-series image data. The method comprises inputting time-series image data, generating time-series object image data by extracting an object region from the time-series image data, and analyzing the motion of the object from the time-series object image data.08-20-2009
20100020241RESOLUTION CONVERSION APPARATUS, METHOD, AND PROGRAM - An apparatus includes a first-acquisition unit acquiring, from target image data, an input image pattern including pixel values within a predetermined range with reference to each of ideal corresponding points, a second-acquisition unit acquiring, as candidate image patterns, from search-image-pattern data, a first candidate image pattern including pixel values within the predetermined range, a finding unit finding, from the search-image-pattern data, an estimated image pattern as a second candidate image pattern of the candidate image patterns which has a smaller difference from the input image pattern than other candidate image patterns, a first setting unit setting pixel values of positions corresponding to the ideal corresponding points in the estimated image pattern as pixel values at the ideal corresponding points, and a conversion unit converting a resolution of the target-image data using the N-dimensional coordinate values and the pixel values corresponding to the N-dimensional coordinate values.01-28-2010
20100061652IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device includes: an estimating module configured to estimate boundaries of blocks in an input image; a characteristic value calculating module configured to calculate a characteristic value of a subject pixel group having constituent pixels including a pixel in the frame and at least one pixel that is adjacent to the pixel by calculating a degree of pixel value dispersion between the constituent pixels of the subject pixel group if all the constituent pixels belong to the same block; an strength value calculating module configured to calculate, from the characteristic value, a strength value to be used in performing pixel value smoothing; and a smoothing module configured to perform the pixel value smoothing according to the strength value.03-11-2010

Patent applications by Hidenori Takeshima, Ebina-Shi JP

Hidenori Takeshima, Kanagawa JP

Patent applications by Hidenori Takeshima, Kanagawa JP

Hidenori Takeshima, Ebina JP

Patent application numberDescriptionPublished
20090110303OBJECT RECOGNIZING APPARATUS AND METHOD - An object is identified by detecting an object area image of an object to be recognized from a degraded image, converting the object area image to a frequency area, extracting a feature vector which indicates the amount of blur, comparing the feature vector and a classified plurality of blurred images, obtaining a cluster which is the most similar to the feature vector, selecting one point spread function corresponding to the similar cluster, restoring the object area image to the image before being blurred using the point spread function, and comparing the restored image and a target image.04-30-2009

Hidenori Takeshima, Tokyo JP

Patent application numberDescriptionPublished
20090074328IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus calculates estimated pixel values of respective pixels of a provisional high-resolution image by interpolation on basis of pixel values in a reference frame, segmentalizes interior of the reference frame into an edge region, a texture region or a flat region and other on basis of pixel values of respective pixels, sets the respective pixels in the reference frame as target pixels one by one in sequence, calculates corresponding positions on the provisional high-resolution image, of the respective target pixels in fractional pixel accuracy on basis of information on the segmented regions including the target values, modifies the estimated pixel values so that difference from the pixel values of the target pixels to provisionally estimated pixel values obtained from the estimated pixel values of the provisional high-resolution image for pixels around the corresponding positions of the target pixels, becomes smaller, and obtains modified pixel values.03-19-2009

Hidenori Takeshima, Kanagawa-Ken JP

Patent application numberDescriptionPublished
20110268370SUPER-RESOLUTION DEVICE AND METHOD - A super-resolution device and method for setting at least one of a plurality of pixels included in image data as target pixels, the image data including pixels arranged in a screen and pixel values representing brightness, an area including the target pixel and peripheral pixels as a target area, and an area for searching pixel value change patterns in the target pixel area; calculating a difference between a first change pattern and second change pattern; comparing a difference between the first and second change patterns; calculating a pixel value of a super-resolution image having a number of pixels larger than a number of pixels included in the image data on the basis of a decimal-accuracy-vector, an extrapolated vector, and pixel values obtained from the image data.11-03-2011