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公开(公告)号：US11920918B2
公开(公告)日：2024-03-05
申请号：US18363474
申请日：2023-08-01
申请人： TRINAMIX GMBH
CPC分类号： G01B11/2504 , G03B21/208 , G06T7/80 , H04N23/56 , G03B21/2013
摘要： Described herein is a method for calibrating a detector including at least one camera and at least one projector. The projector is configured for illuminating at least one target with at least one predefined illumination pattern including a plurality of illumination features. The camera has at least one sensor element having a matrix of optical sensors, the optical sensors each having a light-sensitive area, where each optical sensor is designed to generate at least one sensor signal in response to an illumination of its respective light-sensitive area by a light beam propagating from the target to the camera. The target includes at least one first target and at least one second target. The first target and the second target have a predefined fixed relative distance. The target is positioned at a pre-defined distance from the detector.
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公开(公告)号：US11906421B2
公开(公告)日：2024-02-20
申请号：US18363488
申请日：2023-08-24
申请人： TRINAMIX GMBH
IPC分类号： G01N21/01 , H04N13/254 , H04N13/239 , G06V10/764 , G06V10/145 , G06V10/60 , G06V10/75 , G06V10/147 , H04N13/00 , G01N21/17
CPC分类号： G01N21/01 , G06V10/145 , G06V10/147 , G06V10/60 , G06V10/751 , G06V10/759 , G06V10/764 , H04N13/239 , H04N13/254 , G01N2021/0106 , G01N2021/177 , H04N2013/0074
摘要： A detector (110) for determining at least one material property of at least one object (112) is proposed. The detector (110) comprises
at least one projector (116) configured for illuminating the object (112) with at least one illumination pattern (118) comprising a plurality of illumination features (120);
at least one first camera (122) having at least one first sensor element, wherein the first sensor element has a matrix of first optical sensors, the first optical sensors each having a light-sensitive area, wherein each first optical sensor is designed to generate at least one sensor signal in response to an illumination of its respective light-sensitive area by a reflection light beam propagating from the object (112) to the first camera (122), wherein the first camera (122) is configured for imaging at least one first reflection image comprising a plurality of first reflection features generated by the object (112) in response to illumination by the illumination features (120), wherein the first camera (122) is arranged such that the first reflection image is imaged under a first direction of view to the object (112);
at least one second camera (124) having at least one second sensor element, wherein the second sensor element has a matrix of second optical sensors, the second optical sensors each having a light-sensitive area, wherein each second optical sensor is designed to generate at least one sensor signal in response to an illumination of its respective light-sensitive area by a reflection light beam propagating from the object (112) to the second camera (124), wherein the second camera (124) is configured for imaging at least one second reflection image comprising a plurality of second reflection features generated by the object (112) in response to illumination by the illumination feature (120), wherein the second camera (124) is arranged such that the second reflection image is imaged under a second direction of view to the object (112), wherein the first direction of view and the second direction of view differ;
at least one evaluation device (126) configured for evaluating the first reflection image and the second reflection image, wherein the evaluation comprises matching the first reflection features and the second reflection features and determining a combined material property of matched pairs of first and second reflection features by analysis of their beam profiles.
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