公开(公告)号：US11635610B2

公开(公告)日：2023-04-25

申请号：US17322903

申请日：2021-05-18

Applicant: Purdue Research Foundation

Inventor： Garth Jason Simpson ,  James Ulcickas ,  Fengyuan Deng ,  Changqin Ding

IPC: G02B21/36 ,  G01N21/21 ,  G06T5/00 ,  G02B21/26 ,  G02B21/06

Abstract: A method for imaging a sample, wherein the sample changes a polarization state of light as a function of position, wherein the method includes changing a polarization state of a purely polarized light of an incident light striking a micro-retarder array, thereby inducing a changed polarization state of the polarization state. The micro-retarder array is placed in a rear conjugate focal plane of a microscope. The method additionally includes projecting the changed polarization state of the polarization state into an object plane of the microscope containing the sample.

公开(公告)号：US11042019B2

公开(公告)日：2021-06-22

申请号：US16713838

申请日：2019-12-13

Applicant: Purdue Research Foundation

Inventor： Garth Jason Simpson ,  James Ulcickas ,  Fengyuan Deng ,  Changqin Ding

IPC: H04N7/18 ,  G02B21/36 ,  G01N21/21 ,  G06T5/00 ,  G02B21/26 ,  G02B21/06

Abstract: A method for imaging a sample, wherein the sample changes a polarization state of light as a function of position, wherein the method includes changing a polarization state of a purely polarized light of an incident light striking a micro-retarder array, thereby inducing a changed polarization state of the polarization state. The micro-retarder array is placed in a rear conjugate focal plane of a microscope. The method additionally includes projecting the changed polarization state of the polarization state into an object plane of the microscope containing the sample.

公开(公告)号：US20210278656A1

公开(公告)日：2021-09-09

申请号：US17322903

申请日：2021-05-18

Applicant: Purdue Research Foundation

Inventor： Garth Jason Simpson ,  James Ulcickas ,  Fengyuan Deng ,  Changqin Ding

IPC: G02B21/36 ,  G01N21/21 ,  G06T5/00 ,  G02B21/26 ,  G02B21/06

Abstract: A method for imaging a sample, wherein the sample changes a polarization state of light as a function of position, wherein the method includes changing a polarization state of a purely polarized light of an incident light striking a micro-retarder array, thereby inducing a changed polarization state of the polarization state. The micro-retarder array is placed in a rear conjugate focal plane of a microscope. The method additionally includes projecting the changed polarization state of the polarization state into an object plane of the microscope containing the sample.

公开(公告)号：US12039461B2

公开(公告)日：2024-07-16

申请号：US16566840

申请日：2019-09-10

Applicant: Purdue Research Foundation

Inventor： Garth Jason Simpson ,  James Ulcickas ,  Casey Smith ,  Alex Sherman

IPC: G06N5/04 ,  G05B13/02 ,  G06N3/02 ,  G06N3/045 ,  G06F17/14 ,  G06F17/16

CPC classification number: G06N5/04 ,  G05B13/025 ,  G06N3/02 ,  G06N3/045 ,  G06F17/14 ,  G06F17/16

Abstract: A method for inducing a covert misclassification performed on a non-transitory computer readable medium, the method includes identifying a target position. The method further includes creating a spectral perturbation tensor. The spectral perturbation tensor is configured to shift a projection of an initial spectrum towards the target position. Additionally, the method includes combining the spectral perturbation tensor to the initial spectrum. Further, the method includes classifying the combination of the spectral perturbation tensor and the initial spectrum with an established classifier, thereby designing the spectral perturbation tensor such that the combination is misclassified.