Patents by Inventor SHIMPEI MIYAHARA
SHIMPEI MIYAHARA 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).
-
Patent number: 10791270Abstract: An image stabilization apparatus includes a processor programmed to function as a first acquirer configured to acquire angular velocity data of an angular velocity sensor, a second acquirer configured to acquire data relating to a position of a correction lens to be driven so as to correct a blur in a captured image, a third acquirer configured to acquire a motion vector calculated based on the captured image, and an estimator configured to estimate an offset component of the angular velocity sensor based on the angular velocity data, the data relating to the position, and the motion vector. The data relating to the position is generated based on the angular velocity data.Type: GrantFiled: February 8, 2019Date of Patent: September 29, 2020Assignee: CANON KABUSHIKI KAISHAInventor: Shimpei Miyahara
-
Patent number: 10623643Abstract: An image processing apparatus comprising: an acquisition unit that acquires an image stabilization correction amount based on image stabilization information acquired from an external device via a communication unit; a prediction unit that predicts an image stabilization correction amount based on an image stabilization correction amount used in the past; a selector that selects one of the image stabilization correction amount acquired by the acquisition unit and the image stabilization correction amount predicted by the prediction unit; and an image stabilization unit that performs image stabilization based on the image stabilization correction amount selected by the selector. If the image stabilization information is successfully acquired, the selector selects the image stabilization correction amount acquired by the acquisition unit, and if the image stabilization information is not successfully acquired, the selector selects the predicted image stabilization correction amount.Type: GrantFiled: June 2, 2017Date of Patent: April 14, 2020Assignee: Canon Kabushiki KaishaInventor: Shimpei Miyahara
-
Publication number: 20190174062Abstract: An image stabilization apparatus includes a processor programmed to function as a first acquirer configured to acquire angular velocity data of an angular velocity sensor, a second acquirer configured to acquire data relating to a position of a correction lens to be driven so as to correct a blur in a captured image, a third acquirer configured to acquire a motion vector calculated based on the captured image, and an estimator configured to estimate an offset component of the angular velocity sensor based on the angular velocity data, the data relating to the position, and the motion vector. The data relating to the position is generated based on the angular velocity data.Type: ApplicationFiled: February 8, 2019Publication date: June 6, 2019Inventor: Shimpei Miyahara
-
Patent number: 10313593Abstract: An image stabilization apparatus comprises: an identification unit that, based on an angular velocity signal outputted from a shake detection unit, a motion vector calculated from a difference between frames of images outputted from an image sensor, and a position signal indicating a position of a correction unit that corrects a shake optically, identifies an output variation of the shake detection unit; and a conversion unit that converts the angular velocity signal into a shake correction amount by correcting the angular velocity signal based on the output variation identified by the identification unit.Type: GrantFiled: October 11, 2016Date of Patent: June 4, 2019Assignee: Canon Kabushiki KaishaInventor: Shimpei Miyahara
-
Patent number: 9912869Abstract: An image stabilization apparatus comprising: a conversion unit that corrects an angular velocity signal detected by a camera shake detection unit based on an output variation of the camera shake detection unit and converts it into a camera shake amount; a separation unit that divides each frame of image into a plurality of regions and separates motion vectors each calculated from a difference in each region between frames of images into subject vectors and background vectors using the camera shake amount; an identification unit that identifies the output variation based on the angular velocity signal before the correction, the background vector, and a position signal of a correction unit; and a changing unit that changes the subject vector into a drive amount of the correction unit. The conversion unit corrects the angular velocity signal based on the identified output variation.Type: GrantFiled: October 25, 2016Date of Patent: March 6, 2018Assignee: Canon Kabushiki KaishaInventor: Shimpei Miyahara
-
Publication number: 20170353667Abstract: An image processing apparatus comprising: an acquisition unit that acquires an image stabilization correction amount based on image stabilization information acquired from an external device via a communication unit; a prediction unit that predicts an image stabilization correction amount based on an image stabilization correction amount used in the past; a selector that selects one of the image stabilization correction amount acquired by the acquisition unit and the image stabilization correction amount predicted by the prediction unit; and an image stabilization unit that performs image stabilization based on the image stabilization correction amount selected by the selector. If the image stabilization information is successfully acquired, the selector selects the image stabilization correction amount acquired by the acquisition unit, and if the image stabilization information is not successfully acquired, the selector selects the predicted image stabilization correction amount.Type: ApplicationFiled: June 2, 2017Publication date: December 7, 2017Inventor: Shimpei Miyahara
-
Patent number: 9762802Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.Type: GrantFiled: September 23, 2015Date of Patent: September 12, 2017Assignee: Canon Kabushiki KaishaInventor: Shimpei Miyahara
-
Patent number: 9659356Abstract: An image blur correction apparatus, comprises a blur correction amount calculation unit configured to calculate a blur correction amount based on a shake amount of the apparatus; an estimation calculation unit configured to calculate an estimated value of the blur correction amount using a blur correction amount calculated up until a previous time; a correction unit configured to correct an image blur by cutting out an image using the blur correction amount or the estimated value; and a determination unit configured to determine whether or not to calculate the estimated value in accordance with a frame rate of a moving image.Type: GrantFiled: April 29, 2015Date of Patent: May 23, 2017Assignee: Canon Kabushiki KaishaInventor: Shimpei Miyahara
-
Publication number: 20170134658Abstract: An image stabilization apparatus comprises: an identification unit that, based on an angular velocity signal outputted from a shake detection unit, a motion vector calculated from a difference between frames of images outputted from an image sensor, and a position signal indicating a position of a correction unit that corrects a shake optically, identifies an output variation of the shake detection unit; and a conversion unit that converts the angular velocity signal into a shake correction amount by correcting the angular velocity signal based on the output variation identified by the identification unit.Type: ApplicationFiled: October 11, 2016Publication date: May 11, 2017Inventor: Shimpei Miyahara
-
Publication number: 20170134659Abstract: An image stabilization apparatus comprising: a conversion unit that corrects an angular velocity signal detected by a camera shake detection unit based on an output variation of the camera shake detection unit and converts it into a camera shake amount; a separation unit that divides each frame of image into a plurality of regions and separates motion vectors each calculated from a difference in each region between frames of images into subject vectors and background vectors using the camera shake amount; an identification unit that identifies the output variation based on the angular velocity signal before the correction, the background vector, and a position signal of a correction unit; and a changing unit that changes the subject vector into a drive amount of the correction unit. The conversion unit corrects the angular velocity signal based on the identified output variation.Type: ApplicationFiled: October 25, 2016Publication date: May 11, 2017Inventor: Shimpei Miyahara
-
Patent number: 9253400Abstract: An image capture apparatus includes an image pickup device, a first image stabilization unit which optically corrects an image blur by driving part of the optical system, a second image stabilization unit which electronically corrects the image blur by controlling the image readout position of the image pickup device, a shake detection unit which detects a shake of the image capture apparatus, a correction amount calculation unit which calculates an image stabilization amount based on the detected shake signal, and a division unit which divides a first image stabilization amount of a predetermined frequency band into a second image stabilization amount for correcting the image blur by the first image stabilization unit and a third image stabilization amount for correcting the image blur by the second image stabilization unit.Type: GrantFiled: March 5, 2014Date of Patent: February 2, 2016Assignee: CANON KABUSHIKI KAISHAInventor: Shimpei Miyahara
-
Publication number: 20160014341Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.Type: ApplicationFiled: September 23, 2015Publication date: January 14, 2016Inventor: Shimpei Miyahara
-
Patent number: 9197817Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.Type: GrantFiled: July 20, 2012Date of Patent: November 24, 2015Assignee: Canon Kabushiki KaishaInventor: Shimpei Miyahara
-
Publication number: 20150317775Abstract: An image blur correction apparatus, comprises a blur correction amount calculation unit configured to calculate a blur correction amount based on a shake amount of the apparatus; an estimation calculation unit configured to calculate an estimated value of the blur correction amount using a blur correction amount calculated up until a previous time; a correction unit configured to correct an image blur by cutting out an image using the blur correction amount or the estimated value; and a determination unit configured to determine whether or not to calculate the estimated value in accordance with a frame rate of a moving image.Type: ApplicationFiled: April 29, 2015Publication date: November 5, 2015Inventor: Shimpei Miyahara
-
Publication number: 20140267807Abstract: An image capture apparatus includes an image pickup device, a first image stabilization unit which optically corrects an image blur by driving part of the optical system, a second image stabilization unit which electronically corrects the image blur by controlling the image readout position of the image pickup device, a shake detection unit which detects a shake of the image capture apparatus, a correction amount calculation unit which calculates an image stabilization amount based on the detected shake signal, and a division unit which divides a first image stabilization amount of a predetermined frequency band into a second image stabilization amount for correcting the image blur by the first image stabilization unit and a third image stabilization amount for correcting the image blur by the second image stabilization unit.Type: ApplicationFiled: March 5, 2014Publication date: September 18, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Shimpei Miyahara
-
Patent number: 8588597Abstract: An image blurring correction device includes a correction member which moves in a direction perpendicular to the optical axis of an imaging optical system to correct blurring of an optical image, two driving units which drive the correction member in different directions, a shake detection unit which detects a shake applied to the image blurring correction device, a correction amount calculation unit which calculates, based on shake information detected by the shake detection unit, a correction amount for correcting blurring of the optical image, and a conversion unit which converts the correction amount to cancel a driving error generated by a rotation moment applied to the correction member. The driving units drive the correction member based on the correction amount converted by the conversion unit, correcting blurring of the optical image.Type: GrantFiled: July 7, 2011Date of Patent: November 19, 2013Assignee: Canon Kabushiki KaishaInventors: Shimpei Miyahara, Hiroki Ota
-
Publication number: 20130034345Abstract: An image blurring correction apparatus includes a correction member for correcting image blur, and a shake detection unit for detecting the shake of the apparatus and outputting a shake signal. The image blurring correction apparatus generates first shake amount data based on the shake signal, and generates second shake amount data, based on the shake signal, with which a higher shake correction effect than that of the first shake amount data can be obtained. The image blurring correction apparatus selects either the first or the second shake amount data based on the shake signal, and calculates a shake correction amount that is a moving amount of the correction member using the selected shake amount data.Type: ApplicationFiled: July 20, 2012Publication date: February 7, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Shimpei Miyahara
-
Publication number: 20120014681Abstract: An image blurring correction device includes a correction member which moves in a direction perpendicular to the optical axis of an imaging optical system to correct blurring of an optical image, two driving units which drive the correction member in different directions, a shake detection unit which detects a shake applied to the image blurring correction device, a correction amount calculation unit which calculates, based on shake information detected by the shake detection unit, a correction amount for correcting blurring of the optical image, and a conversion unit which converts the correction amount to cancel a driving error generated by a rotation moment applied to the correction member. The driving units drive the correction member based on the correction amount converted by the conversion unit, correcting blurring of the optical image.Type: ApplicationFiled: July 7, 2011Publication date: January 19, 2012Applicant: CANON KABUSHIKI KAISHAInventors: SHIMPEI MIYAHARA, Hiroki Ota