公开(公告)号：EP3076654A4

公开(公告)日：2018-04-25

申请号：EP14865838

申请日：2014-11-18

申请人： CLARION CO LTD

发明人： SAKANO MORIHIKO ,  AOKI TOSHIYUKI ,  OKADA TSUKASA ,  SATO KEIJI

IPC分类号： G06T7/80 ,  B60R1/00 ,  H04N5/232 ,  H04N7/18

CPC分类号： G06T7/0018 ,  B60R1/00 ,  B60R2300/105 ,  B60R2300/303 ,  G06T7/80 ,  G06T2207/30204 ,  G06T2207/30252 ,  H04N7/181 ,  H04N7/183 ,  H04N17/002

摘要： A camera calibration device that captures images of at least one marker with at least two cameras and calibrates installation states of the at least two cameras based upon the captured images by the at least two cameras, includes: an extracting unit that extracts a feature amount of the at least one marker based upon the captured images by the at least two cameras; a primary calibration unit that calculates a position of each of the at least two cameras in a marker coordinate system, based upon the feature amount; and a secondary calibration unit that preforms coordinate transformation of the position of each of the cameras in the marker coordinate system calculated by the primary calibration unit, into a position of each of the cameras in a vehicle coordinate system.

公开(公告)号：EP3203724A4

公开(公告)日：2018-03-28

申请号：EP15845604

申请日：2015-09-29

申请人： CLARION CO LTD

发明人： SAKANO MORIHIKO ,  SATO KEIJI

IPC分类号： H04N5/232 ,  B60R1/00 ,  G06T7/80 ,  H04N5/225

CPC分类号： H04N5/23296 ,  B60R1/00 ,  B60R2300/105 ,  B60R2300/402 ,  B60R2300/60 ,  G06K9/00744 ,  G06K9/00785 ,  G06K9/00798 ,  G06K9/4633 ,  G06T7/0018 ,  G06T7/0022 ,  G06T7/80 ,  G06T7/97 ,  G06T11/60 ,  G06T2207/10016 ,  G06T2207/20221 ,  G06T2207/30244 ,  G06T2207/30252 ,  G06T2207/30256 ,  H04N5/2257 ,  H04N5/23238 ,  H04N7/181 ,  H04N17/002

摘要： The present invention provides a camera calibration device and a camera calibration system with which it is possible to execute calibration even in a situation where the load-bearing state of a vehicle changes, and also to precisely estimate all of camera parameters and execute calibration without utilizing the parallelism of the vehicle to, e.g., a white line. The orientation of a vehicle is estimated on the basis of a prescribed feature amount extracted from a video, the translation-direction position of a camera relative to ground is corrected on the basis of information obtained from the calibration executed at a time in the past such as the time of product shipment, and a camera parameter pertaining to the orientation of the camera relative to ground is calculated on the basis of the orientation of the vehicle and the translation-direction position of the camera relative to ground.

公开(公告)号：EP3041228A4

公开(公告)日：2017-06-28

申请号：EP14840004

申请日：2014-08-25

申请人： CLARION CO LTD

发明人： SAKANO MORIHIKO ,  SATO KEIJI

IPC分类号： H04N7/18 ,  B60R1/00 ,  G06T1/00 ,  G06T7/80

CPC分类号： B60R1/00 ,  B60R2300/402 ,  G06K9/00791 ,  G06K9/52 ,  G06K2009/4666 ,  G06T3/20 ,  G06T3/60 ,  G06T5/006 ,  G06T7/60 ,  G06T7/80 ,  G06T2207/30168 ,  G06T2207/30244 ,  G06T2207/30252 ,  H04N5/247 ,  H04N17/002