Patents by Inventor Akitaka OKO
Akitaka OKO 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: 11973921Abstract: An image processing apparatus includes a corresponding point calculator and a determination unit. The corresponding point calculator identifies corresponding points relating to an object based on left and right images in each stereo image. The corresponding points include a right image point in the right image and a left image point in the left image. The determination unit predicts a first position of the left image point in a second stereo image, and a second position of the right image point in a second stereo image, based on a position of the left image point in a first stereo image and a position of the right image point in the first stereo image, and determines whether the object is a mobile body based on a difference between the first position predicted and the first position identified, and a difference between the second position predicted and the second position identified.Type: GrantFiled: May 17, 2021Date of Patent: April 30, 2024Assignee: SUBARU CORPORATIONInventor: Akitaka Oko
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Patent number: 11830206Abstract: A stereo camera apparatus includes a stereo camera, a speed sensor, and a control device. The control device includes one or more processors and one or more storage media. The one or more processors are configured to: detect corresponding points from a first image pair and a second image pair to be captured at different times by the stereo camera; divide each of images of the first image pair and the second image pair into regions; calculate, for each of the regions, a movement speed based on an external parameter by using one or more of the corresponding points included in the each of the regions; and calculate, for the each of the regions, a parallax correction value to cause a difference between the movement speed based on the external parameter and a movement speed detectable by the speed sensor to fall below a predetermined threshold.Type: GrantFiled: June 27, 2022Date of Patent: November 28, 2023Assignee: SUBARU CORPORATIONInventor: Akitaka Oko
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Publication number: 20230300473Abstract: An image processing apparatus includes a sub-image generation unit, a luminance ratio map generation unit, and an electric heating wire pattern estimation unit. The sub-image generation unit generates sub-images by dividing a first image in a lateral direction. The first image is one of a left image and a right image that are captured by a stereo camera through a windshield provided with an electric heating wire. The luminance ratio map generation unit sequentially selects one of the sub-images and generates map data based on the selected sub-image and a second image. The map data indicates a ratio between luminance values. The second image is another of the left image and the right image. The electric heating wire pattern estimation unit performs an estimation of a wiring pattern of the electric heating wire based on the map data regarding each of the sub-images.Type: ApplicationFiled: March 2, 2023Publication date: September 21, 2023Applicant: SUBARU CORPORATIONInventor: Akitaka OKO
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Publication number: 20230281765Abstract: An image processing apparatus includes a first distance calculation unit, a second distance calculation unit, a correction amount calculation unit, and an image correction unit. The first distance calculation unit calculates a first distance to an imaging target based on first images which are generated by a first camera and included in stereo images. The second distance calculation unit calculates a second distance to the imaging target based on at least one of the stereo images. The correction amount calculation unit calculates, if a difference between pixel positions, each corresponding to the imaging target, in the respective first images is within a predetermined amount, a correction amount of a pixel position corresponding to the imaging target in an image based on the first and second distances. The image correction unit causes a position of a pixel value included in the image to move laterally based on the correction amount.Type: ApplicationFiled: February 17, 2023Publication date: September 7, 2023Applicant: SUBARU CORPORATIONInventor: Akitaka OKO
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Patent number: 11599971Abstract: An image processing device includes a rotation processor, a parallax image generator, and a rotation controller. The rotation processor makes rotation processing including rotating first left and right images in a stereo image, to generate second left and right images. The parallax image generator calculates corresponding left and right image points in the second left and right images, to generate a parallax image. The rotation controller obtains a coordinate point to calculate an amount of angular change in a rotation angle in the rotation processing. The coordinate point indicates relation of a first positional difference in a horizontal direction and a second positional difference in a vertical direction, between first and second positions. The first and second positions are respective positions of the left and right image points in the second left and right images.Type: GrantFiled: August 14, 2020Date of Patent: March 7, 2023Assignee: SUBARU CORPORATIONInventor: Akitaka Oko
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Publication number: 20230011802Abstract: A stereo camera apparatus includes a stereo camera, a speed sensor, and a control device. The control device includes one or more processors and one or more storage media. The one or more processors are configured to: detect corresponding points from a first image pair and a second image pair to be captured at different times by the stereo camera; divide each of images of the first image pair and the second image pair into regions; calculate, for each of the regions, a movement speed based on an external parameter by using one or more of the corresponding points included in the each of the regions; and calculate, for the each of the regions, a parallax correction value to cause a difference between the movement speed based on the external parameter and a movement speed detectable by the speed sensor to fall below a predetermined threshold.Type: ApplicationFiled: June 27, 2022Publication date: January 12, 2023Applicant: SUBARU CORPORATIONInventor: Akitaka OKO
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Publication number: 20210368151Abstract: An image processing apparatus includes a corresponding point calculator and a determination unit. The corresponding point calculator identifies corresponding points relating to an object based on left and right images in each stereo image. The corresponding points include a right image point in the right image and a left image point in the left image. The determination unit predicts a first position of the left image point in a second stereo image, and a second position of the right image point in a second stereo image, based on a position of the left image point in a first stereo image and a position of the right image point in the first stereo image, and determines whether the object is a mobile body based on a difference between the first position predicted and the first position identified, and a difference between the second position predicted and the second position identified.Type: ApplicationFiled: May 17, 2021Publication date: November 25, 2021Applicant: SUBARU CORPORATIONInventor: Akitaka OKO
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Patent number: 11093783Abstract: A vehicle detection apparatus includes circuitry configured to cut out a region of interest in an image, calculate a composite feature quantity of the region of interest as a whole by dividing the region of interest into a plurality of divided regions, calculating a feature quantity of each of the divided regions, and combining the calculated feature quantities of the respective divided regions together, and perform, on the basis of the calculated composite feature quantity, filtering that discards the region of interest that is determinable as not being a wheel of a vehicle.Type: GrantFiled: October 3, 2019Date of Patent: August 17, 2021Assignee: SUBARU CORPORATIONInventor: Akitaka Oko
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Publication number: 20210104020Abstract: An image processing device includes a rotation processor, a parallax image generator, and a rotation controller. The rotation processor makes rotation processing including rotating first left and right images in a stereo image, to generate second left and right images. The parallax image generator calculates corresponding left and right image points in the second left and right images, to generate a parallax image. The rotation controller obtains a coordinate point to calculate an amount of angular change in a rotation angle in the rotation processing. The coordinate point indicates relation of a first positional difference in a horizontal direction and a second positional difference in a vertical direction, between first and second positions. The first and second positions are respective positions of the left and right image points in the second left and right images.Type: ApplicationFiled: August 14, 2020Publication date: April 8, 2021Inventor: Akitaka OKO
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Publication number: 20200184250Abstract: A vehicle detection apparatus includes circuitry configured to cut out a region of interest in an image, calculate a composite feature quantity of the region of interest as a whole by dividing the region of interest into a plurality of divided regions, calculating a feature quantity of each of the divided regions, and combining the calculated feature quantities of the respective divided regions together, and perform, on the basis of the calculated composite feature quantity, filtering that discards the region of interest that is determinable as not being a wheel of a vehicle.Type: ApplicationFiled: October 3, 2019Publication date: June 11, 2020Inventor: Akitaka OKO