发明名称 |
SYSTEMS AND METHODS OF LOCATING A CONTROL OBJECT APPENDAGE IN THREE DIMENSIONAL (3D) SPACE |
摘要 |
Methods and systems for capturing motion and/or determining the shapes and positions of one or more objects in 3D space utilize cross-sections thereof. In various embodiments, images of the cross-sections are captured using a camera based on reflections therefrom or shadows cast thereby. |
申请公布号 |
US2015287204(A1) |
申请公布日期 |
2015.10.08 |
申请号 |
US201514723370 |
申请日期 |
2015.05.27 |
申请人 |
Leap Motion, Inc. |
发明人 |
Holz David S. |
分类号 |
G06T7/00;G06K9/00;G06K9/32;G06T7/20 |
主分类号 |
G06T7/00 |
代理机构 |
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代理人 |
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主权项 |
1. A system of locating a control object appendage in three dimensional (3D) space, the system including:
one or more processors coupled to memory, the memory loaded with computer instructions that, when executed on the processors, implement actions including: recording images of a control object appendage in 3D space using at least two geometrically distinct predetermined vantages; calculating by a processor four co planar tangents to observed edges of the control object appendage from the recorded images; fitting an ellipse by a processor to a cross-section of the control object appendage by selecting the ellipse from a family of ellipses that fit the four co planar tangents using an assumed parameter; repeatedly fitting contiguous cross-sections to the control object appendage; and constructing the control object appendage in 3D space from the contiguous cross-sections. |
地址 |
San Francisco CA US |