Patents by Inventor Takahiro Oshino
Takahiro Oshino 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: 8922664Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.Type: GrantFiled: September 14, 2012Date of Patent: December 30, 2014Assignee: Canon Kabushiki KaishaInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
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Patent number: 8593533Abstract: The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stablization irrespective of changes of image-taking conditions. An image processing apparatus comprises a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device, and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.Type: GrantFiled: July 18, 2011Date of Patent: November 26, 2013Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Saito, Takahiro Oshino, Hidetoshi Tsubaki
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Patent number: 8508651Abstract: An image stabilizing apparatus includes a motion vector calculating part that calculates a motion vector between a plurality of images including a displacement caused by a motion of an image-pickup apparatus, a shake-correction parameter calculating part that receives the motion vector as input to calculate a shake correction amount, and an image transforming part that performs geometric transformation of the image in accordance with the shake correction amount. The shake-correction parameter calculating part performs variation amount calculation, variation amount correction and correction amount calculation based on the motion information between the plurality of images. The image stabilizing apparatus preserves a motion in video from an intended camera work and allows image stabilization for an unintended shake.Type: GrantFiled: March 22, 2011Date of Patent: August 13, 2013Assignee: Canon Kabushiki KaishaInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Publication number: 20130010139Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.Type: ApplicationFiled: September 14, 2012Publication date: January 10, 2013Applicant: CANON KABUSHIKI KAISHAInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
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Patent number: 8294773Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.Type: GrantFiled: November 12, 2008Date of Patent: October 23, 2012Assignee: Canon Kabushiki KaishaInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
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Patent number: 8077923Abstract: An image processing apparatus includes a first processing part selecting motion detection points for detecting a motion between images, and acquiring first motion vectors that are local motion vectors at the motion detection points, a second processing part acquiring first representative motions that are representative motions of translation, scaling and rotation based on the first motion vectors, a third processing part eliminating components of the first representative motions from the first motion vectors and acquiring second motion vectors, a fourth processing part acquiring local foreshortening motions at the motion detection points from the second motion vectors, and a fifth processing part acquiring a second representative motion that is a representative foreshortening motion from the local foreshortening motions. This process can obtain information representing geometric deformation between the images by simple processing.Type: GrantFiled: February 29, 2008Date of Patent: December 13, 2011Assignee: Canon Kabushiki KaishaInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Publication number: 20110267480Abstract: The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stablization irrespective of changes of image-taking conditions. An image processing apparatus comprises a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device, and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.Type: ApplicationFiled: July 18, 2011Publication date: November 3, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Mitsuhiro SAITO, Takahiro OSHINO, Hidetoshi TSUBAKI
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Publication number: 20110211081Abstract: An image stabilizing apparatus includes a motion vector calculating part that calculates a motion vector between a plurality of images including a displacement caused by a motion of an image-pickup apparatus, a shake-correction parameter calculating part that receives the motion vector as input to calculate a shake correction amount, and an image transforming part that performs geometric transformation of the image in accordance with the shake correction amount. The shake-correction parameter calculating part performs variation amount calculation, variation amount correction and correction amount calculation based on the motion information between the plurality of images. The image stabilizing apparatus preserves a motion in video from an intended camera work and allows image stabilization for an unintended shake.Type: ApplicationFiled: March 22, 2011Publication date: September 1, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Patent number: 8004570Abstract: The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stabilization irrespective of changes of image-taking conditions. An image processing apparatus comprising: a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device; and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.Type: GrantFiled: December 14, 2006Date of Patent: August 23, 2011Assignee: Canon Kabushiki KaishaInventors: Mitsuhiro Saito, Takahiro Oshino, Hidetoshi Tsubaki
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Patent number: 7929043Abstract: An image stabilizing apparatus includes a motion vector calculating part that calculates a motion vector between a plurality of images including a displacement caused by a motion of an image-pickup apparatus, a shake-correction parameter calculating part that receives the motion vector as input to calculate a shake correction amount, and an image transforming part that performs geometric transformation of the image in accordance with the shake correction amount. The shake-correction parameter calculating part performs variation amount calculation, variation amount correction and correction amount calculation based on the motion information between the plurality of images. The image stabilizing apparatus preserves a motion in video from an intended camera work and allows image stabilization for an unintended shake.Type: GrantFiled: April 3, 2008Date of Patent: April 19, 2011Assignee: Canon Kabushiki KaishaInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Patent number: 7634154Abstract: An image conversion apparatus for geometrically converting input image data and outputting output image data, includes an inverse coordinate conversion unit configured to inversely convert coordinate values on the coordinate system of the output image data into coordinate values on the coordinate system of the input image data based on the geometric conversion. When a region between neighboring pixels of the coordinate system of the input image data is divided into a plurality of divisions, the inverse coordinate conversion unit changes the inversely converted coordinate values so that coordinate values which belong to an identical division of the inversely converted coordinate values have a random two-dimensional array.Type: GrantFiled: June 23, 2006Date of Patent: December 15, 2009Assignee: Canon Kabushiki KaishaInventors: Yukio Kamoshida, Takahiro Oshino
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Patent number: 7564582Abstract: An image processing method comprises an extracting process of extracting a characteristic amount of an input image, a generating process of generating a high frequency component of the input image, a gradation converting process of converting a gradation of the input image on the basis of the characteristic amount, and an adding process of adding the high frequency component to the input image whose gradation has been converted.Type: GrantFiled: August 6, 2004Date of Patent: July 21, 2009Assignee: Canon Kabushiki KaishaInventors: Hiroyuki Shinbata, Takahiro Oshino
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Patent number: 7558440Abstract: This invention has as its object to provide an image processing system and a control method for the system, a photographing system and a control method for the system, and a computer-readable memory, which can efficiently photograph without any increase in X-ray dose for a person to be examined. To achieve this object, an output mode input section inputs an output mode representing the output format of an observation area as a to-be-output area in an image to an output medium. An output medium size input section inputs the size of the effective image area of the output medium. The output determination section determines the output method of the observation area on the basis of the observation area and contents input by the input sections.Type: GrantFiled: June 2, 2006Date of Patent: July 7, 2009Assignee: Canon Kabushiki KaishaInventors: Tsukasa Sako, Takahiro Oshino
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Publication number: 20090128700Abstract: An image processing apparatus includes a geometric converter configured to perform a geometric conversion process to a first frame image among frame images that are sequentially generated through imaging, based on motion information obtained by using a motion detector sensor, a motion vector detector configured to detect a motion vector between a geometric conversion image obtained through the geometric conversion process and a second frame image that has not undergone the geometric conversion process, an image stabilization parameter calculator configured to calculate an image stabilization parameter for different motions by using the motion information and the motion vector, and a stabilized image generator configured to generate a stabilized image through a deformation process to the second frame image or a frame image generated subsequent to the second frame image by utilizing the image stabilization parameter.Type: ApplicationFiled: November 12, 2008Publication date: May 21, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Takahiro Oshino, Hidetoshi Tsubaki, Mitsuhiro Saito
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Publication number: 20080246848Abstract: An image stabilizing apparatus includes a motion vector calculating part that calculates a motion vector between a plurality of images including a displacement caused by a motion of an image-pickup apparatus, a shake-correction parameter calculating part that receives the motion vector as input to calculate a shake correction amount, and an image transforming part that performs geometric transformation of the image in accordance with the shake correction amount. The shake-correction parameter calculating part performs variation amount calculation, variation amount correction and correction amount calculation based on the motion information between the plurality of images. The image stabilizing apparatus preserves a motion in video from an intended camera work and allows image stabilization for an unintended shake.Type: ApplicationFiled: April 3, 2008Publication date: October 9, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Publication number: 20080219574Abstract: An image processing apparatus includes a first processing part selecting motion detection points for detecting a motion between images, and acquiring first motion vectors that are local motion vectors at the motion detection points, a second processing part acquiring first representative motions that are representative motions of translation, scaling and rotation based on the first motion vectors, a third processing part eliminating components of the first representative motions from the first motion vectors and acquiring second motion vectors, a fourth processing part acquiring local foreshortening motions at the motion detection points from the second motion vectors, and a fifth processing part acquiring a second representative motion that is a representative foreshortening motion from the local foreshortening motions. This can obtain information representing geometric deformation between the images by simple processing.Type: ApplicationFiled: February 29, 2008Publication date: September 11, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Hidetoshi Tsubaki, Mitsuhiro Saito, Takahiro Oshino
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Publication number: 20080151064Abstract: An image processing apparatus capable of performing processing for reducing a shake in the image including a distortion without performing processing for reducing the distortion is disclosed. The apparatus includes a shake detecting part that detects a shake in a first image area of an input image including a distortion, a shake information generating part that generates shake information on a shake in a second image area of the input image based on the shake detected by the shake detecting part, and a shake reduction processing part that performs image processing for reducing the shake in the second image area based on the shake information without performing image processing for reducing the distortion on the input image.Type: ApplicationFiled: December 14, 2007Publication date: June 26, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Mitsuhiro Saito, Hidetoshi Tsubaki, Takahiro Oshino
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Publication number: 20070132856Abstract: The present invention provides an image processing apparatus capable of obtaining good shake-corrected images in electronic image stablization irrespective of changes of image-taking conditions. An image processing apparatus comprising: a shake correcting part that performs coordinate transformation processing based on shake information to an input image that is generated by use of an image-pickup device; and a method changing part that changes a coordinate transformation method for the coordinate transformation processing.Type: ApplicationFiled: December 14, 2006Publication date: June 14, 2007Inventors: Mitsuhiro Saito, Takahiro Oshino, Hidetoshi Tsubaki
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Publication number: 20070121126Abstract: An image conversion apparatus for geometrically converting input image data and outputting output image data, includes an inverse coordinate conversion unit configured to inversely convert coordinate values on the coordinate system of the output image data into coordinate values on the coordinate system of the input image data based on the geometric conversion. When a region between neighboring pixels of the coordinate system of the input image data is divided into a plurality of divisions, the inverse coordinate conversion unit changes the inversely converted coordinate values so that coordinate values which belong to an identical division of the inversely converted coordinate values have a random two-dimensional array.Type: ApplicationFiled: June 23, 2006Publication date: May 31, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Yukio Kamoshida, Takahiro Oshino
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Publication number: 20060222229Abstract: This invention has as its object to provide an image processing system and a control method for the system, a photographing system and a control method for the system, and a computer-readable memory, which can efficiently photograph without any increase in X-ray dose for a person to be examined. To achieve this object, an output mode input section inputs an output mode representing the output format of an observation area as a to-be-output area in an image to an output medium. An output medium size input section inputs the size of the effective image area of the output medium. The output determination section determines the output method of the observation area on the basis of the observation area and contents input by the input sections.Type: ApplicationFiled: June 2, 2006Publication date: October 5, 2006Applicant: Canon Kabushiki KaishaInventors: Tsukasa Sako, Takahiro Oshino