发明名称 |
Range estimation apparatus and method |
摘要 |
A range or distance estimating apparatus and method estimates the range to various points within a scene by imaging the scene through an optical mask and a lens onto a CCD, and then digitally processing the light intensity values stored in the CCD. The optical mask is designed such that the optical system transformation matrix is rank deficient for a particular set of object ranges. In this way, linear functions can be found to annihilate given sampled image data at a plurality of ranges, independent of the intensity of the light received from the object. A statistical detector is used to determine the closest associated range to the actual range of the point within the scene.
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申请公布号 |
US5521695(A) |
申请公布日期 |
1996.05.28 |
申请号 |
US19930083829 |
申请日期 |
1993.06.25 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF COLORADO |
发明人 |
CATHEY, JR., WADE T.;DOWSKI, JR., EDWARD R. |
分类号 |
G01C3/08;G02B7/36;G02B27/00;(IPC1-7):H04N7/18 |
主分类号 |
G01C3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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