公开(公告)号：US12135240B2

公开(公告)日：2024-11-05

申请号：US17778842

申请日：2020-12-06

Applicant: Purdue Research Foundation

Inventor： Zubin Jacob ,  Fanglin Bao ,  Xueji Wang

IPC: G01J3/28 ,  G01J3/00 ,  G01J3/10 ,  G01J3/447 ,  G01J4/00 ,  G01J4/04 ,  G01J5/00 ,  G01J5/48 ,  G01J5/59 ,  G01N21/21 ,  G01N21/25 ,  G01N21/35 ,  G06F18/22 ,  G06V10/143 ,  G06V10/30 ,  G06V10/40 ,  G06V10/54 ,  G06V10/75

Abstract: Summary: The invention relates to a temperature sensor, full-A magnetic element (3) that has at least one magnetic Layer (1), its magnetic properties depend on the temperature characterized in that—The magnetic layer (1) has a vortex-shaped magnetization distribution with a magnetic vortex core (2) has, wherein the vortex-shaped magnetization distribution is formed in a layer plane and the vortex core (2) is formed perpendicular to the layer plane,—An excitation unit (15) which is used to excite the vortex-shaped Magnetization distribution to a gyrotropic magnetization motion is provided,—A detection unit (16) for detecting a resonance frequency the gyrotropic magnetization movement is provided and—An evaluation unit (19) for determining a temperature from the resonance frequency of the gyrotropic magnetization movement is provided.

公开(公告)号：US20250060251A1

公开(公告)日：2025-02-20

申请号：US18935719

申请日：2024-11-04

Applicant: Purdue Research Foundation

Inventor： Zubin Jacob ,  Fanglin Bao ,  Xueji Wang

IPC: G01J3/28 ,  G01J3/00 ,  G01J3/10 ,  G01J3/447 ,  G01J4/00 ,  G01J4/04 ,  G01J5/00 ,  G01J5/48 ,  G01J5/59 ,  G01N21/21 ,  G01N21/25 ,  G01N21/35 ,  G06F18/22 ,  G06V10/143 ,  G06V10/30 ,  G06V10/40 ,  G06V10/54 ,  G06V10/75

Abstract: An image processing system includes a processor configured to receive heat radiation from a scene by a spectropolarimetric imaging system adapted to generate a plurality of spectral frames, generate the plurality of spectral frames associated with the scene, each frame having a plurality of pixels, for each pixel from the generated plurality of spectral frames, extract scene associated spectral information, including pixel-specific temperature representing an object's temperature, and thermal texture factor representing the object's texture, for each of a plurality of materials having a specific emissivity in a library, generate reference spectral information as a function of temperature and thermal texture, match the extracted spectral information for each pixel from the generated plurality of spectral frames to the generated reference spectral information using a statistical method to minimize the associated variation, and extract spectral metadata from the matched reference spectral information for the associated material based on the match.

公开(公告)号：US20230341265A1

公开(公告)日：2023-10-26

申请号：US17778842

申请日：2020-12-06

Applicant: Purdue Research Foundation

Inventor： Zubin Jacob ,  Fanglin Bao ,  Xueji Wang

IPC: G01J3/447 ,  G01J3/28 ,  G01J5/48 ,  G06V10/30 ,  G06V10/54 ,  G06V10/75

CPC classification number: G01J3/447 ,  G01J3/2823 ,  G01J5/485 ,  G06V10/30 ,  G06V10/54 ,  G06V10/751 ,  G06V10/758 ,  G01J4/04

Abstract: A method of generating object surface texture in thermal infrared images is disclosed which includes receiving heat radiation from a scene by a spectropolarimetric imaging system, generating a plurality of spectral frames associated with the scene, each frame having a plurality of pixels, for each pixel from the generated plurality of spectral frames, extracting spectral information associated with the scene, including pixel-specific temperature representing an objects temperature, and thermal texture factor representing the objects texture, for each of a plurality of materials having a specific emissivity in a library, generating reference spectral information as a function of temperature and thermal texture, matching the extracted spectral information for each pixel from the generated plurality of spectral frames to the generated reference spectral information using a statistical method to minimize the associated variation, and extracting spectral metadata from the matched reference spectral information for the associated material based on the match.