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公开(公告)号：US10551524B2
公开(公告)日：2020-02-04
申请号：US15533290
申请日：2015-12-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Anthony J. Sabelli , Jennifer F. Shumacher , Yanina Shkel , Brian J. Stankiewicz , Glenn E. Casner , John A. Wheatley , Andrew P. Bonifas , Ravishankar Sivalingam
Abstract: Systems and methods for authenticating material samples are provided. Characteristic features are measured for a batch of material samples that comprise substantially the same composition and are produced by substantially the same process. The measured characteristic features have respective variability that is analyzed to extract statistical parameters. In some cases, reference ranges are determined based on the extracted statistical parameters for the batch of material samples. The corresponding statistical parameters of a test material sample are compared to the reference ranges to verify whether the test material sample is authentic.
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公开(公告)号：US09626462B2
公开(公告)日：2017-04-18
申请号：US14321318
申请日：2014-07-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guruprasad Somasundaram , Evan J. Ribnick , Ravishankar Sivalingam , Aya Eid , Theresa M. Meyer , Golshan Golnari , Anthony J. Sabelli
CPC classification number: G06T7/0016 , A61B5/0088 , A61B5/4547 , A61C7/002 , A61C9/0053 , A61C19/04 , G06F17/50 , G06T7/11 , G06T13/20 , G06T15/08 , G06T19/20 , G06T2200/04 , G06T2207/30036 , G06T2210/41
Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.
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公开(公告)号：US20170363772A1
公开(公告)日：2017-12-21
申请号：US15533290
申请日：2015-12-07
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Anthony J. Sabelli , Jennifer F. Shumacher , Yanina Shkel , Brian J. Stankiewicz , Glenn E. Casner , John A. Wheatley , Andrew P. Bonifas , Ravishankar Sivalingam
CPC classification number: G01V15/00 , G03G15/00 , G03G21/04 , G06Q30/018 , G06T7/0006 , G06T7/001 , G06T7/41 , H04N5/2256
Abstract: Systems and methods for authenticating material samples are provided. Characteristic features are measured for a batch of material samples that comprise substantially the same composition and are produced by substantially the same process. The measured characteristic features have respective variability that is analyzed to extract statistical parameters. In some cases, reference ranges are determined based on the extracted statistical parameters for the batch of material samples. The corresponding statistical parameters of a test material sample are compared to the reference ranges to verify whether the test material sample is authentic.
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公开(公告)号：US20160321825A1
公开(公告)日：2016-11-03
申请号：US15106219
申请日：2014-12-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Fumio Karasawa , Guruprasad Somasundaram , Robert W. Shannon , Richard J. Moore , Anthony J. Sabelli , Ravishankar Sivalingam
CPC classification number: G06K9/4671 , G06K9/6267 , G06T7/11 , G06T7/194 , G06T7/90 , G06T2207/10024 , G06T2207/20076 , H04N5/20 , H04N5/232 , H04N5/2354 , H04N5/2356
Abstract: To provide an apparatus, a system, and a program that can easily detect an image region where retroreflected light is recorded without being influenced by a neighboring object. In one embodiment, a measuring apparatus (1) includes an imaging unit (11), a converter (141) that converts first image data captured by the imaging unit using light emission for photography and second image data captured by the imaging unit without using the light emission for photography to luminance values, a differential processor (142) that calculates a difference between a first luminance value based on the first image data and a second luminance value based on the second image data for each pixel and generates an output image visually representing a region where the difference is present based on an obtained differential image, and a display unit (16) that displays the output image.
Abstract translation: 提供一种可以容易地检测记录回射光的图像区域而不受邻近对象的影响的装置，系统和程序。 在一个实施例中，测量装置（1）包括成像单元（11），转换器（141），其使用用于摄影的发光和由成像单元拍摄的第二图像数据来转换由成像单元捕获的第一图像数据，而不使用 用于摄影的亮度发光到亮度值;差分处理器（142），其基于第一图像数据计算第一亮度值与基于每个像素的第二图像数据的第二亮度值之间的差异，并生成视觉上表示的输出图像 基于获得的差分图像存在差异的区域，以及显示输出图像的显示单元（16）。
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公开(公告)号：US10410346B2
公开(公告)日：2019-09-10
申请号：US15448978
申请日：2017-03-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guruprasad Somasundaram , Evan J. Ribnick , Ravishankar Sivalingam , Aya Eid , Theresa M. Meyer , Golshan Golnari , Anthony J. Sabelli
IPC: G06K9/00 , G06T7/00 , G06F17/50 , A61C9/00 , A61C19/04 , G06T7/11 , G06T13/20 , G06T15/08 , G06T19/20 , A61B5/00 , A61C7/00
Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20180364984A1
公开(公告)日：2018-12-20
申请号：US15532537
申请日：2015-12-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Jennifer F. Schumacher , Glenn E. Casner , Yanina Shkel , Andrew P. Bonifas , Anthony J. Sabelli , Brian J. Stankiewicz , John A. Wheatley , Ravishankar Sivalingam , Robert W. Shannon
IPC: G06F7/58
CPC classification number: G06F7/588
Abstract: Systems and methods for generating random bits by using physical variations present in material samples are provided. Initial random bit streams are derived from measured material properties for the material samples. In some cases, secondary random bit streams are generated by applying a randomness extraction algorithm to the derived initial random bit streams.
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公开(公告)号：US10405796B2
公开(公告)日：2019-09-10
申请号：US15654848
申请日：2017-07-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Evan J. Ribnick , Guruprasad Somasundaram , Brian J. Stankiewicz , Aya Eid , Ravishankar Sivalingam , Shannon D. Scott , Anthony J. Sabelli , Robert D. Lorentz
Abstract: Methods for estimating and predicting tooth wear based upon a single 3D digital model of teeth. The 3D digital model is segmented to identify individual teeth within the model. A digital model of a tooth is selected from the segmented model, and its original shape is predicted. The digital model is compared with the predicted original shape to estimate wear areas. A mapping function based upon values relating to tooth wear can also be applied to the selected digital model to predict wear of the tooth.
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公开(公告)号：US20180003491A1
公开(公告)日：2018-01-04
申请号：US15538311
申请日：2015-12-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Anthony J. Sabelli , Glenn E. Casner , Joseph C. Dingeldein , Shannon D. Scott
CPC classification number: G01B21/042 , G01B3/30 , G01B21/20
Abstract: Three-dimensional test objects provide for assessment of a 3D scanner over a range of scales, frequencies, and/or depths. The test objects may include a substrate having a substantially planar top surface and a plurality of surface features. In some examples, the surface features include a plurality of wedges projecting above the plane of the top surface and extending radially outward from an origin to form a three dimensional star pattern. The shape of the surface features may be periodic or non-periodic. In other examples, the depth of the surface features is decoupled from their lateral frequency.
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公开(公告)号：US20170311873A1
公开(公告)日：2017-11-02
申请号：US15654848
申请日：2017-07-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Evan J. Ribnick , Guruprasad Somasundaram , Brian J. Stankiewicz , Aya Eid , Ravishankar Sivalingam , Shannon D. Scott , Anthony J. Sabelli , Robert D. Lorentz
CPC classification number: A61B5/4557 , A61B5/0062 , A61B5/0088 , A61B5/4547 , A61B5/7267 , A61B5/7275 , A61B5/7278 , A61B5/743 , A61B2576/02 , A61C9/0053 , G06F19/30 , G06T7/0014 , G06T2207/10028 , G06T2207/30036 , G16H30/40 , G16H50/50
Abstract: Methods for estimating and predicting tooth wear based upon a single 3D digital model of teeth. The 3D digital model is segmented to identify individual teeth within the model. A digital model of a tooth is selected from the segmented model, and its original shape is predicted. The digital model is compared with the predicted original shape to estimate wear areas. A mapping function based upon values relating to tooth wear can also be applied to the selected digital model to predict wear of the tooth.
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公开(公告)号：US20170178327A1
公开(公告)日：2017-06-22
申请号：US15448978
申请日：2017-03-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Guruprasad Somasundaram , Evan J. Ribnick , Ravishankar Sivalingam , Aya Eid , Theresa M. Meyer , Golshan Golnari , Anthony J. Sabelli
CPC classification number: G06T7/0016 , A61B5/0088 , A61B5/4547 , A61C7/002 , A61C9/0053 , A61C19/04 , G06F17/50 , G06K9/00362 , G06K2209/055 , G06T7/11 , G06T13/20 , G06T15/08 , G06T19/20 , G06T2200/04 , G06T2207/30036 , G06T2210/41
Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.
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