Multimodal image registration for effective thermographic fever screening
Journal:
arXiv
Published Date:
Jun 29, 2025
Abstract
Fever screening based on infrared thermographs (IRTs) is a viable mass
screening approach during infectious disease pandemics, such as Ebola and SARS,
for temperature monitoring in public places like hospitals and airports. IRTs
have found to be powerful, quick and non-invasive methods to detect elevated
temperatures. Moreover, regions medially adjacent to the inner canthi (called
the canthi regions in this paper) are preferred sites for fever screening.
Accurate localization of the canthi regions can be achieved through multi-modal
registration of infrared (IR) and white-light images. We proposed a
registration method through a coarse-fine registration strategy using different
registration models based on landmarks and edge detection on eye contours. We
evaluated the registration accuracy to be within 2.7 mm, which enables accurate
localization of the canthi regions.
