- 专利标题: Systems, methods, and computer-readable media for ultra-high resolution 3D imaging of whole cells
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申请号: US15442265申请日: 2017-02-24
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公开(公告)号: US10783697B2公开(公告)日: 2020-09-22
- 发明人: Fang Huang , Joerg Bewersdorf
- 申请人: Yale University
- 申请人地址: US CT New Haven
- 专利权人: Yale University
- 当前专利权人: Yale University
- 当前专利权人地址: US CT New Haven
- 代理机构: Saul Ewing Arnstein & Lehr LLP
- 代理商 Kathryn Doyle; Brian R. Landry
- 主分类号: G01N33/48
- IPC分类号: G01N33/48 ; G06T15/08 ; G01N21/64 ; G02B21/36 ; G02B21/16 ; G02B21/22 ; G06T7/11
摘要:
One aspect of the invention provides a method for drift correction to correct a 3D point collection dataset to compensate for drift over time. The method includes: (a) separating the 3D dataset into n segments, wherein n>1; (b) for each of the n segments, reconstructing a volume image as a 3D histogram in which a count for each voxel in the histogram equals a number of localization estimates falling within the voxel; (c) performing 3D cross-correlation between pairs of the n segments; (d) identifying a correlation peak in a result of the 3D cross-correlation to determine a shift distance between pairs of the n segments; (e) solving an overdetermined system of shift distances to determine independent shifts; and (f) offsetting positions from a plurality of segments in the 3D point collection dataset with the independent shifts calculated in step (e) to correct for drift.
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