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公开(公告)号:US20180043988A1
公开(公告)日:2018-02-15
申请号:US15231783
申请日:2016-08-09
Applicant: GoPro, Inc.
Inventor: Scott Patrick Campell , Leo Baldwin , Gary Fong
CPC classification number: B64C11/20 , B64C11/26 , B64C11/34 , B64C39/024 , B64C2201/027 , B64C2201/108
Abstract: A variable pitch propeller is designed to adjust the pitch of the propeller blade during flight to maximize the propeller efficiency. The propeller blade may comprise airfoil cross-sections. Each cross-section may be composed of different materials at the leading edge and trailing edge. In various embodiments, these materials are selected and oriented to achieve the necessary elastic moduli of the leading and trailing edge for the airfoil cross-section. During liftoff, the airfoil at the blade tip possesses a high blade pitch (e.g. 20 degrees), thereby increasing the generated lift on the propeller blades. During flight or hover conditions when maximal lift is no longer required, the trailing edge of the airfoil displaces upward and reduces the blade pitch to minimize the drag forces on the blade tip.
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公开(公告)号:US09473713B2
公开(公告)日:2016-10-18
申请号:US14991481
申请日:2016-01-08
Applicant: GoPro, Inc.
Inventor: Timothy MacMillan , Scott Patrick Campell
IPC: H04N5/341 , H04N5/262 , H04N5/225 , G06T3/00 , G06T3/40 , G06T7/00 , H04N5/232 , H04N5/247 , G06T5/00 , G06T5/50
CPC classification number: H04N5/3415 , G06T3/0068 , G06T3/0093 , G06T3/4038 , G06T5/006 , G06T5/50 , G06T7/344 , G06T2207/10004 , G06T2207/20128 , G06T2207/20221 , G06T2210/22 , H04N5/2252 , H04N5/2253 , H04N5/2257 , H04N5/2258 , H04N5/23216 , H04N5/23229 , H04N5/23232 , H04N5/23238 , H04N5/247 , H04N5/2624 , H04N5/2628
Abstract: Multiple cameras are arranged in an array at a pitch, roll, and yaw that allow the cameras to have adjacent fields of view such that each camera is pointed inward relative to the array. The read window of an image sensor of each camera in a multi-camera array can be adjusted to minimize the overlap between adjacent fields of view, to maximize the correlation within the overlapping portions of the fields of view, and to correct for manufacturing and assembly tolerances. Images from cameras in a multi-camera array with adjacent fields of view can be manipulated using low-power warping and cropping techniques, and can be taped together to form a final image.
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公开(公告)号:US20160125570A1
公开(公告)日:2016-05-05
申请号:US14991481
申请日:2016-01-08
Applicant: GoPro, Inc.
Inventor: Timothy Macmillan , Scott Patrick Campell
CPC classification number: H04N5/3415 , G06T3/0068 , G06T3/0093 , G06T3/4038 , G06T5/006 , G06T5/50 , G06T7/344 , G06T2207/10004 , G06T2207/20128 , G06T2207/20221 , G06T2210/22 , H04N5/2252 , H04N5/2253 , H04N5/2257 , H04N5/2258 , H04N5/23216 , H04N5/23229 , H04N5/23232 , H04N5/23238 , H04N5/247 , H04N5/2624 , H04N5/2628
Abstract: Multiple cameras are arranged in an array at a pitch, roll, and yaw that allow the cameras to have adjacent fields of view such that each camera is pointed inward relative to the array. The read window of an image sensor of each camera in a multi-camera array can be adjusted to minimize the overlap between adjacent fields of view, to maximize the correlation within the overlapping portions of the fields of view, and to correct for manufacturing and assembly tolerances. Images from cameras in a multi-camera array with adjacent fields of view can be manipulated using low-power warping and cropping techniques, and can be taped together to form a final image.
Abstract translation: 多个相机以阵列,俯仰和偏转方式布置,允许相机具有相邻的视野,使得每个相机相对于阵列向内指向。 可以调整多相机阵列中每个相机的图像传感器的读取窗口,以使相邻视场之间的重叠最小化,以使视场的重叠部分之间的相关性最大化,并纠正制造和组装 公差。 可以使用低功率翘曲和裁剪技术来操纵具有相邻视场的多相机阵列中的相机的图像,并且可以将其粘贴在一起以形成最终图像。
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