发明名称 |
Methods and system to quantify depth data accuracy in three-dimensional sensors using single frame capture |
摘要 |
A method and system dynamically calculates confidence levels associated with accuracy of Z depth information obtained by a phase-shift time-of-flight (TOF) system that acquires consecutive images during an image frame. Knowledge of photodetector response to maximum and minimum detectable signals in active brightness and total brightness conditions is known a priori and stored. During system operation brightness threshold filtering and comparing with the a priori data permits identifying those photodetectors whose current output signals are of questionable confidence. A confidence map is dynamically generated and used to advise a user of the system that low confidence data is currently being generated. Parameter(s) other than brightness may also or instead be used.
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申请公布号 |
US7408627(B2) |
申请公布日期 |
2008.08.05 |
申请号 |
US20060348737 |
申请日期 |
2006.02.06 |
申请人 |
CANESTA, INC. |
发明人 |
BAMJI CYRUS;TORUNOGLU ILHAMI;GOKTURK SALIH BURAK |
分类号 |
G01C3/08 |
主分类号 |
G01C3/08 |
代理机构 |
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代理人 |
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地址 |
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