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公开(公告)号：US10453217B2
公开(公告)日：2019-10-22
申请号：US15467245
申请日：2017-03-23
Applicant: MAGNA ELECTRONICS INC.
Inventor： Jagmal Singh , Sebastian Pliefke , Holger Hess
Abstract: A vehicular camera calibration system includes a camera disposed at a vehicle and having a field of view exterior of the vehicle and being operable to capture image data. Responsive to processing of image data captured by the camera, the camera calibration system determines features at the ground adjacent to the vehicle and tracks the determined features over two or more frames of captured image data. Responsive to processing of frames of captured image data during movement of the vehicle along a straight path on a planar surface, the camera calibration system is operable to determine a misalignment of the camera. The camera calibration system calibrates the misaligned camera by using an assumption that the determined features lie in a plane parallel to the planar surface along which the vehicle is traveling. The camera calibration system calibrates the camera by reducing ambiguity in vectors normal to the planar surface.
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公开(公告)号：US10445900B1
公开(公告)日：2019-10-15
申请号：US16536381
申请日：2019-08-09
Applicant: MAGNA ELECTRONICS INC.
Inventor： Jagmal Singh , Sebastian Pliefke
Abstract: A method for calibrating a camera of a vehicular vision system includes capturing a first frame of image data by the camera during a first ignition cycle of the vehicle, and, responsive to ending the first ignition cycle of the vehicle, saving to memory the first frame of captured image data. A second frame of image data is captured by the camera during a second ignition cycle of the vehicle following the first ignition cycle. The first frame of captured image data is compared by an image processor to the second frame of captured image data to determine a change in orientation of the camera. Responsive to determination of the change in orientation of the camera, processing by the image processor of frames of image data captured by the camera during the second ignition cycle is adjusted to accommodate the determined change in orientation of the camera.
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Patent Agency Ranking
公开(公告)号：US20190072667A1
公开(公告)日：2019-03-07
申请号：US16123255
申请日：2018-09-06
Applicant: Magna Electronics Inc.
Inventor： Sergio Duque Biarge , Jagmal Singh , Holger Hess , Jorge J. Jácome Muñoz , Kalin Kabakchiev , Roaldje Nadjiasngar
Abstract: A sensing system for a vehicle includes at least one radar sensor disposed at the vehicle and having a field of sensing exterior of the vehicle. The at least one radar sensor includes multiple transmitting antennas and multiple receiving antennas. The transmitting antennas transmit signals and the receiving antennas receive the signals reflected off objects. Multiple scans of radar data sensed by the at least one radar sensor are received at a control, and a vehicle motion estimation is received at the control. The control, responsive to received scans of sensed radar data, detects the presence of one or more objects exterior the vehicle and within the field of sensing of the at least one radar sensor. The control, responsive to the received scans of sensed radar data and the received vehicle motion estimation, matches objects detected in the scans and determines angles toward the detected objects.
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公开(公告)号：US20180174327A1
公开(公告)日：2018-06-21
申请号：US15844995
申请日：2017-12-18
Applicant: MAGNA ELECTRONICS INC.
Inventor： Jagmal Singh
CPC classification number: G06T7/80 , B60R1/00 , B60R2300/105 , B60R2300/402 , G06T2207/10028 , G06T2207/30252
Abstract: A camera calibration system for cameras of a vehicle includes a plurality of cameras disposed at a vehicle and having respective fields of view exterior of the vehicle, with the fields of view of two of the cameras overlapping. While the vehicle is moving, an image processor of a control processes image data captured by the two cameras to determine and track matching features in an overlapping region of the fields of view of the two cameras. The control, responsive to image processing of image data captured by the two cameras, determines motion of matching features and minimizes a cost function of the error in the matching of the features. The camera calibration system uses the determined minimized cost function to refine calibration results of the two cameras using a feedback loop.
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公开(公告)号：US09916660B2
公开(公告)日：2018-03-13
申请号：US14996571
申请日：2016-01-15
Applicant: MAGNA ELECTRONICS INC.
Inventor： Jagmal Singh , Sebastian Pliefke , Holger Hess
CPC classification number: G06T7/80 , G06K9/00791 , G06T3/0062 , G06T5/006 , G06T2207/30208 , G06T2207/30252 , H04N7/181
Abstract: A vision system of a vehicle includes a camera configured to be disposed at a vehicle so as to have a field of view exterior of the vehicle. The camera may include a fisheye lens. An image processor is operable to process image data captured by the camera. The vision system provides enhanced camera calibration using a monoview noncoplanar three dimensional calibration pattern. The system may include a plurality of cameras configured to be disposed at the vehicle so as to have respective fields of view exterior of the vehicle.
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公开(公告)号：US20170278270A1
公开(公告)日：2017-09-28
申请号：US15467245
申请日：2017-03-23
Applicant: MAGNA ELECTRONICS INC.
Inventor： Jagmal Singh , Sebastian Pliefke , Holger Hess
CPC classification number: G06T7/80 , B60R1/00 , B60R2300/402 , G06T2207/10016 , G06T2207/30252 , H04N17/002
Abstract: A vehicular camera calibration system includes a camera disposed at a vehicle and having a field of view exterior of the vehicle and being operable to capture image data. Responsive to processing of image data captured by the camera, the camera calibration system determines features at the ground adjacent to the vehicle and tracks the determined features over two or more frames of captured image data. Responsive to processing of frames of captured image data during movement of the vehicle along a straight path on a planar surface, the camera calibration system is operable to determine a misalignment of the camera. The camera calibration system calibrates the misaligned camera by using an assumption that the determined features lie in a plane parallel to the planar surface along which the vehicle is traveling. The camera calibration system calibrates the camera by reducing ambiguity in vectors normal to the planar surface.
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公开(公告)号：US20160210750A1
公开(公告)日：2016-07-21
申请号：US14996571
申请日：2016-01-15
Applicant: MAGNA ELECTRONICS INC.
Inventor： Jagmal Singh , Sebastian Pliefke , Holger Hess
CPC classification number: G06T7/80 , G06K9/00791 , G06T3/0062 , G06T5/006 , G06T2207/30208 , G06T2207/30252 , H04N7/181
Abstract: A vision system of a vehicle includes a camera configured to be disposed at a vehicle so as to have a field of view exterior of the vehicle. The camera may include a fisheye lens. An image processor is operable to process image data captured by the camera. The vision system provides enhanced camera calibration using a monoview noncoplanar three dimensional calibration pattern. The system may include a plurality of cameras configured to be disposed at the vehicle so as to have respective fields of view exterior of the vehicle.
Abstract translation: 车辆的视觉系统包括被配置为设置在车辆上以便具有车辆外观的视场的照相机。 相机可以包括鱼眼镜头。 图像处理器可操作以处理由相机捕获的图像数据。 视觉系统使用单视野非共面三维校准模式提供增强的相机校准。 该系统可以包括被配置为设置在车辆上以便具有车辆外部的各个视野的多个照相机。
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