Invention Grant
- Patent Title: Methods and apparatus for generating point cloud histograms
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Application No.: US17316372Application Date: 2021-05-10
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Publication No.: US11468609B2Publication Date: 2022-10-11
- Inventor: Hongwei Zhu , David J. Michael , Nitin M. Vaidya
- Applicant: Cognex Corporation
- Applicant Address: US MA Natick
- Assignee: Cognex Corporation
- Current Assignee: Cognex Corporation
- Current Assignee Address: US MA Natick
- Agency: Wolf, Greenfield & Sacks, P.C.
- Main IPC: G06T11/20
- IPC: G06T11/20 ; G06T17/20 ; G06T7/50 ; G06T7/66 ; G06K9/62 ; G06V10/50 ; G06V10/75

Abstract:
The techniques described herein relate to methods, apparatus, and computer readable media configured to generate point cloud histograms. A one-dimensional histogram can be generated by determining a distance to a reference for each 3D point of a 3D point cloud. A one-dimensional histogram is generated by adding, for each histogram entry, distances that are within the entry's range of distances. A two-dimensional histogram can be determined by generating a set of orientations by determining, for each 3D point, an orientation with at least a first value for a first component and a second value for a second component. A two-dimensional histogram can be generated based on the set of orientations. Each bin can be associated with ranges of values for the first and second components. Orientations can be added for each bin that have first and second values within the first and second ranges of values, respectively, of the bin.
Public/Granted literature
- US20210350595A1 METHODS AND APPARATUS FOR GENERATING POINT CLOUD HISTOGRAMS Public/Granted day:2021-11-11
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