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公开(公告)号：WO2017196591A1
公开(公告)日：2017-11-16
申请号：PCT/US2017/030705
申请日：2017-05-03
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： GODBAZ, John, Peter , SCHMIDT, Mirko , BAMJI, Cyrus, S.
CPC classification number: G01S17/89 , G01S7/4814 , G01S7/493 , G01S17/08 , G01S17/50 , G06T5/002 , G06T5/20 , G06T19/006 , G06T2207/10028 , G06T2207/20024 , G06T2207/20192 , H04N5/2173 , H04N13/122 , H04N13/254
Abstract: A method for facilitating removal of multipath signal interference from light data can comprise illuminating, with an illumination unit, a target with a light source. The illumination unit can be configured to project a high spatial -frequency pattern onto the target in such a way as to redistribute spectral energy to higher frequencies. The method can also comprise acquiring, with a sensor unit, reflected light data reflected from the target. The reflected light data can comprise an array of spatial domain information received from light reflected by the target. Further, the method can comprise processing, with the one or more processors, the reflected light data. The processing applies a high-pass filter within the spatial domain to the reflected light data.
Abstract translation: 用于促进从光数据移除多径信号干扰的方法可以包括利用照明单元用光源照射目标。 照明单元可以被配置为将高空间频率图案投影到目标上，以便将频谱能量重新分配到更高的频率。 该方法还可以包括利用传感器单元获取从目标反射的反射光数据。 反射光数据可以包括从目标反射的光中接收的空间域信息的阵列。 此外，该方法可以包括利用一个或多个处理器处理反射光数据。 该处理将空间域内的高通滤波器应用于反射光数据。
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公开(公告)号：WO2019212876A1
公开(公告)日：2019-11-07
申请号：PCT/US2019/029253
申请日：2019-04-26
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： FENTON, Michael, S. , GODBAZ, John, Peter
Abstract: The technology described herein recalibrates a structured light sensor in the field using time-of-flight sensor data. Structured light sensors are sensitive to mechanical changes that result in decreased accuracy. A structured light system calculates the range to an object by comparing a reference image to the actual image of the scene. The reference image is what the projected light pattern would look like on a flat object at a known distance. When the projected image changes, the reference image no longer matches the projected pattern. The calibration technology described herein captures a new reference image based on the current sensor characteristics using a time-of-flight capable sensor as the structured light imaging sensor.
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公开(公告)号：WO2017196590A1
公开(公告)日：2017-11-16
申请号：PCT/US2017/030704
申请日：2017-05-03
Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： GODBAZ, John, Peter , BAMJI, Cyrus, S. , SCHMIDT, Mirko
CPC classification number: G01S17/89 , G01S7/4814 , G01S7/493 , G01S17/08 , G01S17/50 , G06T5/002 , G06T5/20 , G06T19/006 , G06T2207/10028 , G06T2207/20024 , G06T2207/20192 , H04N5/2173 , H04N13/122 , H04N13/254
Abstract: A method for facilitating removal of specular reflection noise from light data can include illuminating, using an illumination unit, a target with a light source. The illumination unit is configured to project light with a spatial light pattern onto the target. The method can also include acquiring, with a sensor unit, light data that is reflected from the target. The light data may comprise a directly reflected spatial light pattern and a specular reflected spatial light pattern. The directly reflected spatial light pattern and the specular reflected spatial light pattern comprise at least one spatial distinction that distinguishes the directly reflected spatial light pattern from the specular reflected spatial light pattern. The method can further comprise processing the light data to distinguish the directly reflected spatial light pattern from the specular reflected spatial light pattern based upon the at least one spatial distinction.
Abstract translation: 用于促进从光数据去除镜面反射噪声的方法可以包括使用照明单元用光源照射目标。 照明单元被配置为将具有空间光图案的光投射到目标上。 该方法还可以包括利用传感器单元获取从目标反射的光数据。 光数据可以包括直接反射的空间光图案和镜面反射的空间光图案。 直接反射的空间光图案和镜面反射的空间光图案包括区分直接反射的空间光图案与镜面反射的空间光图案的至少一个空间区别。 该方法还可以包括处理光数据以基于至少一个空间区别区分直接反射的空间光图案与镜面反射的空间光图案。
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