Non-contact temperature measurement in thermal imaging systems and methods

US12400452B2 · kind B2 · utility

Assignee

• Teledyne FLIR, LLC · US

Inventors

• Louis Tremblay · River Drive, CA
• Pierre Boulanger · Goleta, US
• Justin Muncaster · Goleta, US
• James Klingshirn · Austin, US
• Robert C. Proebstel · Beaverton, US
• Giovanni Lepore · Peabody, US
• Eugene Pochapsky · Laneville, US
• Katrin Strandemar · Rimbo, SE
• Nicholas Högasten · Lompoc, US
• Karl Rydqvist · Täby, SE
• Theodore R. Hoelter · Goleta, US
• Jeremy P. Walker · Oakmont, US
• Per Elmfors · Huddinge, SE
• Austin A. Richards · Lompoc, US
• Dylan M. Rodriguez · Goleta, US
• John C. Day · Hinsdale, US
• Hugo Hedberg · Täby, SE
• Tien Nguyen · Wilsonville, US
• Fredrik Gihl · Täby, SE
• Rasmus Loman · Täby, SE

Key dates

• Filing date: Oct 5, 2022
• Grant date: Aug 26, 2025
• Expiry date: Aug 9, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G06V2201/07
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Systems and methods include an image capture component configured to capture infrared images of a scene, and a logic device configured to identify a target in the images, acquire temperature data associated with the target based on the images, evaluate the temperature data and determine a corresponding temperature classification, and process the identified target in accordance with the temperature classification. The logic device identifies a person and tracks the person across a subset of the images, identify a measurement location for the target in a subset of the images based on target feature points identified by a neural network, and measure a temperature of the location using corresponding values from one or more captured thermal images. The logic device is further configured calculate a core body temperature of the target using the temperature data to determine whether the target has a fever and calibrate using one or more black bodies.