Patents by Inventor Gentaro Irisawa
Gentaro Irisawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8730357Abstract: An image processing method includes the steps of calculating, with respect to a processing-target pixel in an input image signal, a concentric aberration correction amount for concentric aberration that is a component of magnification chromatic aberration, the concentric aberration causing a color shift to occur in a concentric manner from the center of an image, calculating, with respect to the processing-target pixel, a uniform aberration correction amount for uniform aberration that is a component of magnification chromatic aberration, the uniform aberration causing a color shift direction and a color shift amount to uniformly occur on a whole image, and correcting a pixel value of the processing-target pixel on the basis of the calculated concentric aberration correction amount and the calculated uniform aberration correction amount.Type: GrantFiled: April 28, 2011Date of Patent: May 20, 2014Assignee: Sony CorporationInventors: Kenichi Nishio, Hyongmyong Kang, Hiroyuki Kinoshita, Tsukasa Hashino, Takuya Kato, Gentaro Irisawa, Atsuo Minato
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Patent number: 8446477Abstract: An imaging apparatus includes: a shift lens driven to be shifted; a uniform aberration correction data storing unit storing uniform aberration correction data for correcting uniform aberration; a shift amount calculating unit calculating an amount of aberration correction shift of the shift lens for correcting uniform aberration using the uniform aberration correction data; a shift lens driving unit driving the shift lens to be shifted according to an amount of driving shift based on the amount of aberration correction shift; a concentric aberration correction amount calculating unit calculating an amount of concentric aberration correction for correcting concentric aberration with respect to a process target pixel of an input image signal; and a pixel value correcting unit correcting a pixel value of the process target pixel on the basis of the calculated amount of concentric aberration correction.Type: GrantFiled: July 26, 2011Date of Patent: May 21, 2013Assignee: Sony CorporationInventors: Gentaro Irisawa, Atsuo Kikuchi, Takuya Kato, Atsuo Minato, Kenichi Nishio, Hiroyuki Kinoshita
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Patent number: 8395677Abstract: An aberration correction apparatus includes: a correction data holding section that holds correction data on a correction level used to correct chromatic aberration of magnification; a center position discrepancy data holding section that holds center position discrepancy data on the discrepancy between the center of an image area and the position of an aberration center of the chromatic aberration of magnification; an aberration center calculating section that selects one of the center position discrepancy data that corresponds to a combination of the discrepancy variation conditions in an imaging apparatus and calculates the position of the aberration center based on the selected center position discrepancy data; an image height calculating section; a magnification chromatic aberration correction level calculating section; and a pixel value correcting section.Type: GrantFiled: September 7, 2011Date of Patent: March 12, 2013Assignee: Sony CorporationInventors: Atsuo Kikuchi, Gentaro Irisawa, Atsuo Minato, Kenichi Nishio, Hyongmyong Kang, Hiroyuki Kinoshita, Tsukasa Hashino
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Publication number: 20120081583Abstract: An aberration correction apparatus includes: a correction data holding section that holds correction data on a correction level used to correct chromatic aberration of magnification; a center position discrepancy data holding section that holds center position discrepancy data on the discrepancy between the center of an image area and the position of an aberration center of the chromatic aberration of magnification; an aberration center calculating section that selects one of the center position discrepancy data that corresponds to a combination of the discrepancy variation conditions in an imaging apparatus and calculates the position of the aberration center based on the selected center position discrepancy data; an image height calculating section; a magnification chromatic aberration correction level calculating section; and a pixel value correcting section.Type: ApplicationFiled: September 7, 2011Publication date: April 5, 2012Applicant: Sony CorporationInventors: Atsuo Kikuchi, Gentaro Irisawa, Atsuo Minato, Kenichi Nishio, Hyongmyong Kang, Hiroyuki Kinoshita, Tsukasa Hashino
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Publication number: 20120044369Abstract: An imaging apparatus includes: a shift lens driven to be shifted; a uniform aberration correction data storing unit storing uniform aberration correction data for correcting uniform aberration; a shift amount calculating unit calculating an amount of aberration correction shift of the shift lens for correcting uniform aberration using the uniform aberration correction data; a shift lens driving unit driving the shift lens to be shifted according to an amount of driving shift based on the amount of aberration correction shift; a concentric aberration correction amount calculating unit calculating an amount of concentric aberration correction for correcting concentric aberration with respect to a process target pixel of an input image signal; and a pixel value correcting unit correcting a pixel value of the process target pixel on the basis of the calculated amount of concentric aberration correction.Type: ApplicationFiled: July 26, 2011Publication date: February 23, 2012Applicant: SONY CORPORATIONInventors: Gentaro IRISAWA, Atsuo Kikuchi, Takuya Kato, Atsuo Minato, Kenichi Nishio, Hiroyuki Kinoshita
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Publication number: 20120002113Abstract: An image processing method includes the steps of calculating, with respect to a processing-target pixel in an input image signal, a concentric aberration correction amount for concentric aberration that is a component of magnification chromatic aberration, the concentric aberration causing a color shift to occur in a concentric manner from the center of an image, calculating, with respect to the processing-target pixel, a uniform aberration correction amount for uniform aberration that is a component of magnification chromatic aberration, the uniform aberration causing a color shift direction and a color shift amount to uniformly occur on a whole image, and correcting a pixel value of the processing-target pixel on the basis of the calculated concentric aberration correction amount and the calculated uniform aberration correction amount.Type: ApplicationFiled: April 28, 2011Publication date: January 5, 2012Applicant: Sony CorporationInventors: Kenichi NISHIO, Hyongmyong KANG, Hiroyuki KINOSHITA, Tsukasa HASHINO, Takuya KATO, Gentaro IRISAWA, Atsuo MINATO
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Publication number: 20090161069Abstract: An iris imaging lens (1A) comprises a biconvex spherical lens (2A), a biconcave spherical lens (3A), and a visible light cut filter (4A), and at least one surface of the visible light cut filter (4A) is formed as a curved surface. In this configuration, the visible light cut filter (4A) serves as a lens, so that aberration is corrected not only by the biconvex spherical lens (2A) and biconcave spherical lens (3A) but also by the visible light cut filter (4A). As a result, aberration can be reduced to improve the lens performance without increasing the number of imaging lenses, and the increase in the cost of manufacturing can be limited.Type: ApplicationFiled: September 27, 2006Publication date: June 25, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Shuichi Horiguchi, Gentaro Irisawa