公开(公告)号：US10330610B2

公开(公告)日：2019-06-25

申请号：US15266195

申请日：2016-09-15

Applicant: Massachusetts Institute of Technology ,  Board of Trustees of Michigan State University

Inventor： Gregory Charvat ,  Andrew Temme ,  Micha Feigin-Almon ,  Ramesh Raskar ,  Hisham Bedri

IPC: G01N22/00 ,  G01S13/88 ,  G01N21/3586

Abstract: An imaging system images near-field objects with focused microwave or terahertz radiation. Multiple antennas emit microwave or terahertz radiation, such that the radiation varies in frequency over time, illuminates a near-field object, reflects from the near-field object, and travels to a passive aperture. For example, the passive aperture may comprise a dielectric lens or a parabolic reflector. The passive aperture focuses, onto a spatial region, the microwave or terahertz radiation that reflected from the near-field object. One or more antennas take measurements, in the spatial region, of the microwave or terahertz radiation that reflected from the near-field object. A computer calculates, based on the measurements, an image of the near-field object and depth information regarding the near-field object.

公开(公告)号：US20170212059A1

公开(公告)日：2017-07-27

申请号：US15266195

申请日：2016-09-15

Applicant: Massachusetts Institute of Technology ,  Board of Trustees of Michigan State University

Inventor： Gregory Charvat ,  Andrew Temme ,  Micha Feigin-Almon ,  Ramesh Raskar ,  Hisham Bedri

IPC: G01N22/00 ,  G01N21/35

CPC classification number: G01N22/00 ,  G01N21/3586 ,  G01S13/88 ,  G01S13/887

Abstract: An imaging system images near-field objects with focused microwave or terahertz radiation. Multiple antennas emit microwave or terahertz radiation, such that the radiation varies in frequency over time, illuminates a near-field object, reflects from the near-field object, and travels to a passive aperture. For example, the passive aperture may comprise a dielectric lens or a parabolic reflector. The passive aperture focuses, onto a spatial region, the microwave or terahertz radiation that reflected from the near-field object. One or more antennas take measurements, in the spatial region, of the microwave or terahertz radiation that reflected from the near-field object. A computer calculates, based on the measurements, an image of the near-field object and depth information regarding the near-field object.

公开(公告)号：US20210145608A1

公开(公告)日：2021-05-20

申请号：US16969142

申请日：2019-02-12

Applicant: Massachusetts Institute of Technology

Inventor： Hugh M. Herr ,  Kevin Mattheus Moerman ,  Dana Solav ,  Bryan James Ranger ,  Rebecca Steinmeyer ,  Stephanie Lai Ku ,  Canan Dagdeviren ,  Matthew Carney ,  German A. Prieto-Gomez ,  Xiang Zhang ,  Jonathan Randall Fincke ,  Micha Feigin-Almon ,  Brian W. Anthony, Ph.D. ,  Zixi Liu ,  Aaron Jaeger ,  Xingbang Yang

IPC: A61F2/50 ,  A61F2/76 ,  A61F2/80 ,  A61F2/78

Abstract: Devices and methods for obtaining external shapes and internal tissue geometries, as well as tissue behaviors, of a biological body segment are provided. A device for three-dimensional imaging of a biological body segment includes a structure configured to receive the biological body segment, the structure including a first array of imaging devices disposed about a perimeter of the device to capture side images of the biological body segment and a second array of imaging devices disposed at an end of the device to capture images of a distal portion of the biological body segment. The second array has a generally axial viewing angle relative to the perimeter. A controller is configured to generate a three-dimensional reconstruction of the biological body segment based on cross-correlation of captured images from the first and second arrays.