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Eiichiro Ikeda

Eiichiro Ikeda, Yokohama-Shi JP

Patent application numberDescriptionPublished
20090015691IMAGE PICKUP APPARATUS AND METHOD FOR CONTROLLING THE SAME - An image pickup apparatus for applying high-speed dark shading correction and reducing random noise in a black image is provided. The image pickup apparatus has an image pickup element capable of reading image signals corresponding to one frame, which are obtained by photoelectric conversion, on a field-by-field basis. With the image pickup element exposed to light, first image signals corresponding to one frame are read. Then, with the image pickup element shielded from light, second image signals are read from fields that are fewer than fields constituting one frame. Each of third image signals is generated by averaging the second image signals for each of blocks obtained by dividing the image pickup element and converting the average image signal for each block to a resolution of the first image signals. The third image signals are subtracted from the first image signals.01-15-2009
20090102951IMAGE PROCESSING APPARATUS AND METHOD FOR COLOR-NOISE REDUCTION - In a color-noise reduction circuit in which a color-difference signal of a target pixel is substituted in a random substitution circuit (04-23-2009
20090284614IMAGE CAPTURING APPARATUS, IMAGE CAPTURING SENSOR, AND IMAGE CAPTURING PROCESSING METHOD - This invention is directed to reduce a deterioration in image quality after thinning operation when pixels are read out upon thinning. An image sensor is designed such that different gains are applied on a pixel basis. After periodical gains are applied to the respective pixels, the pixels of the same colors are added and averaged to obtain a low-pass filter effect before thinning processing for the pixels in the sensor, thereby preventing the occurrence of aliasing (moiré) due to thinning.11-19-2009
20090315997IMAGE PROCESSING METHOD, IMAGING APPARATUS, AND STORAGE MEDIUM STORING CONTROL PROGRAM OF IMAGE PROCESSING METHOD EXECUTABLE BY COMPUTER - An image processing method is provided for detecting the position of a specific subject from a movie and combining a display of detection result indicating the detected position with the movie. The image processing method includes a step of determining, depending on a display time of the detection result, whether the detection result should be continuously displayed, when the subject cannot be detected during the display of the detection result combined with the movie.12-24-2009
20090322885IMAGE PROCESSING METHOD, IMAGING APPARATUS, AND STORAGE MEDIUM STORING CONTROL PROGRAM OF IMAGE PROCESSING METHOD EXECUTABLE BY COMPUTER - An image processing method is provided for detecting the position of a specific subject from a movie and combining a display of detection result indicating the detected position with the movie. The image processing method includes a step of determining, depending on a display time of the detection result, whether the detection result should be continuously displayed, when the subject cannot be detected during the display of the detection result combined with the movie.12-31-2009
20100014775IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a detection circuit configured to detect an image, a luminance correction circuit configured to determine luminance of the detected image and to execute correction for reducing a luminance variation in the detected image, and an extraction circuit configured to extract feature amount data from the detected image corrected by the correction circuit for use in authentication processing.01-21-2010
20100033600LUMINANCE SIGNAL GENERATION APPARATUS, LUMINANCE SIGNAL GENERATION METHOD, AND IMAGE CAPTURING APPARATUS - A luminance signal in which the occurrence of spatial aliasing in a diagonal direction component has been suppressed for a red or blue imaging subject is generated from an image signal read from an image sensor. A V-LPF and a H-LPF generate a first luminance signal in which the spatial frequency bandwidth has been limited. Also, a V-LPF and a H-LPF, which limit the spatial frequency bandwidth so as to be even lower than the V-LPF and the H-LPF, generate a second luminance signal in which the bandwidth has been limited. A first GR weighted-addition circuit generates a final luminance signal for a pixel of interest by performing weighted-addition on the first luminance signal and the second luminance signal such that the ratio of the second luminance signal increases as the intensity of the redness or blueness of the pixel of interest increases.02-11-2010

Patent applications by Eiichiro Ikeda, Yokohama-Shi JP

Eiichiro Ikeda, Kanagawa-Ken JP

Patent application numberDescriptionPublished
20080284916SIGNAL PROCESSING METHOD AND APPARATUS, AND IMAGE SENSING APPARATUS - At least two high-frequency signals are generated using luminance signals of at least two color components contained in a video signal, and a high-frequency signal for edge emphasizing processing is generated from the at least two generated high-frequency signals based upon the size relationship between the at least two high-frequency signals. Edge emphasizing processing is applied to the luminance signals, which are obtained from the video signal, using the high-frequency signal for edge emphasizing processing thus generated.11-20-2008

Eiichiro Ikeda, Kanagawa JP

Patent application numberDescriptionPublished
20110176030WHITE BALANCE CORRECTION INCLUDING INDICATIVE WHITE COLOR DETERMINATION BASED ON REGIONS IN A DIVIDED IMAGE - A white balance correction apparatus may include a dividing unit, a white evaluation unit, a white balance correction unit, and a camera orientation discrimination unit. The dividing unit divides an image into a plurality of divided areas. The white evaluation unit determines whether image data within every divided area is indicative of a color white according to white detection regions in a color temperature range defined based on a position of each divided area in the image. The white balance correction unit performs a white balance correction based upon image data determined to be indicative of the color white. The camera orientation discrimination unit discriminates orientation of a camera. In accordance with the discriminated orientation, the white evaluation unit changes a combination of position of each divided area and condition used.07-21-2011