title: Overlay of thermal and visual medical images using skin detection and image registration.
abstract: Thermography captures the temperature distribution of the human skin and is employed in various medical applications. Often it is useful to cross-reference the resulting thermograms with visual images of the patient, either to see which part of the anatomy is affected by a certain disease or to judge the efficacy of the treatment. An attractive approach to provide this information is to overlay the two image types and show a composite image to the clinician. Producing such an overlay however is a non-trivial task due to differences in image capturing conditions of the two modalities. In this paper we introduce an approach that produces accurate overlays of thermal and visual medical images. First unnecessary background information of the visual part are removed by an image segmentation step based on skin detection. The thermal image is then aligned through an intensity based image registration technique. Experimental results based on an set of visual-thermal image pairs demonstrate the effectiveness of the proposed approach.
authors.affiliation: School of Computing & Informatics, Nottingham Trent University, Nottingham, UK. Gerald.Schaefer@ntu.ac.uk
authors.forename: Gerald
authors.initials: G
authors.lastname: Schaefer
authors.forename: Roger
authors.initials: R
authors.lastname: Tait
authors.forename: Shao Ying
authors.initials: SY
authors.lastname: Zhu
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods; D007259:Infrared Rays; D010363:Pattern Recognition, Automated / Q000379:methods; D010781:Photography / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012867:Skin / Q000033:anatomy & histology*; D012879:Skin Physiological Phenomena; D013382:Subtraction Technique; D013817:Thermography / Q000379:methods*; D051598:Whole Body Imaging / Q000379:methods*