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Rapid point cloud alignment and classification with basis set learning

專利號
US11176693B1
公開日期
2021-11-16
申請人
Amazon Technologies, Inc.(US WA Seattle)
發(fā)明人
Javier Romero Gonzalez-Nicolas; Sergey Prokudin; Christoph Lassner
IPC分類
G06T7/50; G06T17/00; G06K9/62
技術領域
cloud,data,point,may,mesh,points,basis,or,e.g,generate
地域: WA WA Seattle

摘要

A system configured to process an input point cloud, which represents an object using unstructured data points, to generate a feature vector that has an ordered structure and a fixed length. The system may process the input point cloud using a basis point set to generate the feature vector. For example, for each basis point in the basis point set, the system may identify a closest data point in the point cloud data and store a distance value or other information associated with the closest data point in the feature vector. The system may process the feature vector using a trained model to generate output data, such as performing point cloud registration to generate mesh data, point cloud classification to generate classification data, and/or the like.

說明書

Similarly, the system 100 may process a second point cloud 540 to generate second mesh data 550, with a second comparison 560 illustrating an accuracy of the second mesh data 550 relative to the second point cloud 540. For example, the comparison 560 illustrates the second point cloud 540 (e.g., represented as specific data points) interleaved with the second mesh data 550 (e.g., represented as an outline), indicating that there are only minor differences between the two. Thus, the second mesh data 550 accurately approximates the second point cloud 540 such that there only small portions of the second point cloud 540 distinguishable from the second mesh data 550.

FIG. 6 illustrates an example of a classification network according to embodiments of the present disclosure. In some examples, the system 100 performs point cloud classification and may generate object classification 119, which indicates an object label inferred from the point cloud data. Thus, the object classification 119 may correspond to an object label, classification label, point cloud classification, and/or the like and may indicate a classification associated with the point cloud data (e.g., human, cat, box, piano, etc.).

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