The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 04, 2025

Filed:

Jun. 18, 2021
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventor:

Masaharu Hattori, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 25/671 (2023.01); G01J 5/48 (2022.01); G01J 5/70 (2022.01); H04N 23/20 (2023.01); H04N 25/21 (2023.01); G01J 5/00 (2022.01);
U.S. Cl.
CPC ...
H04N 25/671 (2023.01); G01J 5/48 (2013.01); G01J 5/70 (2022.01); H04N 23/20 (2023.01); H04N 25/21 (2023.01); G01J 2005/0074 (2013.01);
Abstract

Provided here are: an infrared imaging element that receives infrared light to capture a thermal image; an element temperature sensor that detects a temperature of the infrared imaging element; an FPN memory that stores therein FPN data at each of the temperatures; a frame memory that saves a plurality of pieces of frame data composed of thermal images captured by the infrared imaging element in a fixed period of time; and an FPN data generation unit that, when an imaging target is determined not to have changed on the basis of the frame data, acquires from the FPN memory, the FPN data corresponding to the temperature of the infrared imaging element at which said frame data were obtained; and performs averaging processing between average values AF of the plurality of pieces of frame data and the thus-acquired FPN data, to thereby regenerate the FPN data in an updated manner.


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