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公开(公告)号：US20230289991A1
公开(公告)日：2023-09-14
申请号：US18317155
申请日：2023-05-15
Applicant: MAGNA ELECTRONICS INC.
Inventor： Horst D. Diessner , Jyothi P. Gali , Nikhil Gupta , Hilda Faraji , Galina Okuoneva , Akinyele O. Ikuseru
CPC classification number: G06T7/60 , B60R1/00 , G06T7/74 , G06T7/248 , G06T7/73 , G06T2207/30252 , B60R2300/8093 , B60R2300/8066
Abstract: A vehicular trailer angle detection system includes a camera disposed at a rear portion of a vehicle. The system determines, via processing of frames of image data captured by the camera, features of a trailer present rearward of the vehicle and hitched to the vehicle by determining features that have similar position changes between a current frame of image data captured by the camera and a previous frame of image data captured by the camera. Responsive to movement of the trailer relative to the vehicle, and via processing of captured frames of image data, the system tracks determined features over multiple captured frames of image data for different positions of the trailer relative to the vehicle. The system determines angle of the trailer relative to the vehicle based at least in part on tracking of determined features of the trailer over multiple captured frames of image data.
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公开(公告)号：US20210201523A1
公开(公告)日：2021-07-01
申请号：US17249120
申请日：2021-02-22
Applicant: MAGNA ELECTRONICS INC.
Inventor： Horst D. Diessner , Jyothi P. Gali , Nikhil Gupta , Hilda Faraji , Galina Okouneva , Akinyele O. Ikuseru
Abstract: A method for determining features of a trailer being towed by a vehicle includes initiating a calibration drive of the vehicle and capturing frames of image data via a vehicle camera, and, via processing by an image processor of frames of captured image data, determining features of the trailer being towed by the vehicle during the calibration drive. The features of the trailer are determined by determining features that have similar changes between a current frame of captured image data and a previous frame of captured image data captured during the calibration drive. The features are tracked over multiple frames of captured image data for different angular positions of the trailer relative to the vehicle to determine trailer length from the hitch ball of the vehicle to an axle of the trailer. The trailer angle is determined based on the determined trailer length.
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公开(公告)号：US11014561B2
公开(公告)日：2021-05-25
申请号：US15885855
申请日：2018-02-01
Applicant: MAGNA ELECTRONICS INC.
Inventor： Nikhil Gupta , Horst D. Diessner , Richard Bozich , Jyothi P. Gali , Aleksandar Stefanovic , Hilda Faraji , Miad Moarref , Xai Phan , Galina Okouneva , Brijendra Kumar Bharti
Abstract: A trailer hitching assist system for a vehicle includes a camera disposed at a rear portion of a vehicle and having a field of view rearward of the vehicle. A control includes an image processor operable to process image data captured by the camera. The image processor, via image processing of image data captured by the camera, detects a trailer and trailer hitch rearward of the vehicle and determines a first path of travel for the vehicle to follow so as to maneuver the vehicle so as to have its tow ball aligned with the trailer hitch. The control maneuvers the vehicle along the determined first path of travel. Responsive to detection of an object entering the first path of travel, the control determines a second path of travel and maneuvers the vehicle along the second path of travel to avoid the detected object entering the determined path of travel.
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公开(公告)号：US20210001775A1
公开(公告)日：2021-01-07
申请号：US16948474
申请日：2020-09-21
Applicant: MAGNA ELECTRONICS INC.
Inventor： Ghanshyam Rathi , Hilda Faraji , Nikhil Gupta , Christian Traub , Michael Schaffner , Goerg Pflug
Abstract: A method for stitching image data captured by multiple vehicular cameras includes equipping a vehicle with a vehicular vision system having a control and a plurality of cameras disposed at the vehicle so as to have respective fields of view exterior the vehicle. Image data captured by first and second cameras of the plurality of cameras is processed to detect and track an object present in and moving within an overlapping portion of the fields of view of the first and second cameras. Image data captured by the first and second cameras is stitched, via processing provided captured image data, to form stitched images. Stitching of captured image data is adjusted responsive to determination of a difference between a feature of a detected and tracked object as captured by the first camera and the feature of the detected and tracked object as captured by the second camera.
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公开(公告)号：US20200262347A1
公开(公告)日：2020-08-20
申请号：US15929460
申请日：2020-05-04
Applicant: Magna Electronics Inc.
Inventor： Nikhil Gupta , Hilda Faraji , Daan He , Ghanshyam Rathi
Abstract: A method for dynamically calibrating a vehicular camera includes disposing a camera at a vehicle and operating the camera to capture multiple frames of image data while the vehicle is in motion and is steered within at least two ranges of steering angles. Feature points are determined in an image frame when the vehicle is steered within a respective range of steering angles, and motion trajectories of those feature points are tracked in subsequent image frames for the respective range of steering angles. A horizon line is determined based on the tracked feature points. Responsive to determination that the determined horizon line is non-parallel to the horizontal axis of the image plane, at least one of pitch, roll or yaw of the camera is adjusted. Image data captured by the camera is processed at the control for object detection.
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Patent Agency Ranking
公开(公告)号：US10733757B2
公开(公告)日：2020-08-04
申请号：US16408613
申请日：2019-05-10
Applicant: Magna Electronics Inc.
Inventor： Nikhil Gupta , Galina Okouneva , Hilda Faraji , Jyothi P. Gali
Abstract: A trailer assist system for a vehicle includes a camera with a field of view encompassing a trailer hitch disposed at the vehicle. A control includes an image processor that processes image data captured by the camera that is representative of images of the trailer hitch present in the field of view of the camera. The control, responsive to processing at the control of image data captured by the camera, detects at least one feature of the trailer hitch at a Cartesian coordinate location and transforms the Cartesian coordinate location of the detected feature to a cylindrical coordinate location. The control generates a vertical segment that passes through the detected features and determines cylindrical coordinates of a ground point along the vertical segment. The control, responsive to determining the cylindrical coordinates of the ground point, determines a 3D location of the trailer hitch at the vehicle.
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公开(公告)号：US10706291B2
公开(公告)日：2020-07-07
申请号：US15910100
申请日：2018-03-02
Applicant: MAGNA ELECTRONICS INC.
Inventor： Horst D. Diessner , Jyothi P. Gali , Nikhil Gupta , Hilda Faraji , Galina Okouneva
Abstract: A trailer angle detection system for a vehicle towing a trailer includes a camera disposed at a rear portion of the vehicle and having a field of view rearward of the vehicle. The camera includes a two dimensional imager array having multiple rows and columns of photosensing elements. An image processor processes image data captured by the camera. With the vehicle towing a trailer, and via processing by the image processor of image data captured by the camera, the trailer angle detection system detects a portion of the trailer that is being towed by the vehicle. The trailer angle detection system determines, via processing by the image processor of image data captured by the camera, an angle of the trailer relative to the vehicle responsive to determination of which columns of photosensing elements sense the detected portion of the trailer in the field of view of the camera.
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公开(公告)号：US20190143896A1
公开(公告)日：2019-05-16
申请号：US16246624
申请日：2019-01-14
Applicant: MAGNA ELECTRONICS INC.
Inventor： Ghanshyam Rathi , Hilda Faraji , Nikhil Gupta , Christian Traub , Michael Schaffner , Goerg Pflug
Abstract: A dynamic image stitching system for stitching images captured by cameras of a vision system for a vehicle includes a plurality of cameras disposed at the vehicle and having respective fields of view exterior the vehicle. The field of view of each side camera partially overlaps the field of view of a front camera and partially overlaps the field of view of a rear camera. Image data captured by the plurality of cameras is processed at a processor to detect an object present in an overlapping portion of the fields of view of two cameras. The processor stitches, via a stitching algorithm, image data captured by the cameras. The processor adjusts the stitching algorithm responsive to a determination of a difference between a characteristic of the feature as captured by one of the two cameras and the characteristic of the feature as captured by another of the two cameras.
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公开(公告)号：US20180276839A1
公开(公告)日：2018-09-27
申请号：US15928128
申请日：2018-03-22
Applicant: MAGNA ELECTRONICS INC.
Inventor： Horst D. Diessner , Jyothi P. Gali , Nikhil Gupta , Hilda Faraji , Galina Okouneva , Akinyele O. Ikuseru
Abstract: A trailer angle detection system for a vehicle towing a trailer includes a rearward viewing camera disposed at a rear portion of a vehicle, and an image processor operable to process image data captured by the camera. Responsive to processing of captured image data when the vehicle is towing a trailer, the trailer angle detection system determines the presence of the trailer at the rear of the vehicle and attached at the vehicle and determines feature vectors of the detected trailer over multiple frames of captured image data. Responsive to movement of the trailer relative to the vehicle, the trailer angle detection system tracks feature vectors for different positions of the detected trailer. The trailer angle detection system determines an angle of the trailer responsive to detection of tracking of feature vectors the trailer in the field of view of the camera over multiple frames of captured image data.
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公开(公告)号：US20180253608A1
公开(公告)日：2018-09-06
申请号：US15910100
申请日：2018-03-02
Applicant: MAGNA ELECTRONICS INC.
Inventor： Horst D. Diessner , Jyothi P. Gali , Nikhil Gupta , Hilda Faraji , Galina Okouneva
CPC classification number: G06K9/00791 , B60R1/003 , B60R2300/30 , G06K9/4604 , G06K9/4671 , G06K9/627 , G06T3/0062 , G06T7/60 , G06T7/73 , G06T2207/10024 , G06T2207/30252 , H04N5/2253 , H04N5/2257
Abstract: A trailer angle detection system for a vehicle towing a trailer includes a camera disposed at a rear portion of the vehicle and having a field of view rearward of the vehicle. The camera includes a two dimensional imager array having multiple rows and columns of photosensing elements. An image processor processes image data captured by the camera. With the vehicle towing a trailer, and via processing by the image processor of image data captured by the camera, the trailer angle detection system detects a portion of the trailer that is being towed by the vehicle. The trailer angle detection system determines, via processing by the image processor of image data captured by the camera, an angle of the trailer relative to the vehicle responsive to determination of which columns of photosensing elements sense the detected portion of the trailer in the field of view of the camera.
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