Body temperature measurement of an animal by tracking in biomedical experiments
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Abstract
In this paper, we present a method to measure the body temperature of an animal using a thermographic camera in hyperthermia experiments, where the heat contrast between the animal and its background is low. This work was done in the context of the study of artificially induced atypical febrile seizures. In order to measure the temperature of a moving animal continuously, we need to detect it in each video frame and then select a subset of pixels to evaluate its body temperature. To detect the animal in each frame, we propose a tracking method based on the minimization of a cost function that uses constraints such as temperature smoothness and proximity. The temperature of the animal is then taken as the mean of a subset of pixels from the detected area. For videos up to 19,000 frames long, the method achieves temperature estimation within \(0.7\,^{\circ }\text{ C }\) from ground-truth more than 73 % of the time in difficult measurement scenarios.
Keywords
Thermography Body temperature measurement Hyperthermia Seizures Animal tracking Low contrastReferences
- 1.Baram, T.Z., Gerth, A., Schultz, L.: Febrile seizures: an appropriate-aged model suitable for long-term studies. Dev. Brain Res. 98(2), 265–270 (1997)CrossRefGoogle Scholar
- 2.Bilodeau, G., Ghali, R., Desgent, S., Langlois, J., Farah, R., St-Onge, P., Duss, S., Carmant, L.: Where is the rat? Tracking in low contrast thermographic images. In: 2011 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), pp. 55–60 (2011)Google Scholar
- 3.Bilodeau, G.A., Levesque, M., Langlois, J., Lema, P., Carmant, L.: Thermographic body temperature measurement using a mean-shift tracker. In: The International Conference on Bio-inspired Systems and Signal Processing (BIOSIGNALS 2009), pp. 18–24 (2009)Google Scholar
- 4.Bilodeau, G.A., Torabi, A., Levesque, M., Ouellet, C., Langlois, J., Lema, P., Carmant, L.: Body temperature estimation of a moving subject from thermographic images. Mach. Vis. Appl. 23, 299–311 (2012)CrossRefGoogle Scholar
- 5.Desgent, S., Duss, S., Sanon, N., Lema, P., Levesque, M., Hebert, D., Rebillard, R.M., Bibeau, K., Brochu, M., Carmant, L.: Early-life stress is associated with gender-based vulnerability to epileptogenesis in rat pups. PLoS One 7(8), e42622 (2012)Google Scholar
- 6.Desgent, S., Sanon, N., Bilodeau, G.A., Duss, S., Salam, M., Sawan, M., Carmant, L.: Posnatal stress alters hyperthermic seizure patterns in a dual pathology rat model of epileptogenesis. American Epilepsy Society (AES) 65th Annual Meeting, Poster: 2.056 (2011)Google Scholar
- 7.Engel, J.: Intractable epilepsy: definition and neurobiology. Epilepsia 42, 3 (2001)Google Scholar
- 8.Engel, J.: Mesial temporal lobe epilepsy: what have we learned? Neuroscientist 7(4), 340–352 (2001)CrossRefGoogle Scholar
- 9.Gibbs, S., Chattopadhyaya, B., Desgent, S., Awad, P., Clerk-Lamalice, O., Levesque, M., Vianna, R.M., Rebillard, R.M., Delsemme, A.A., Hebert, D., Tremblay, L., Lepage, M., Descarries, L., Cristo, G.D., Carmant, L.: Long-term consequences of a prolonged febrile seizure in a dual pathology model. Neurobiol. Dis. 43(2), 312–321 (2011)CrossRefGoogle Scholar
- 10.Gibbs, S., Scantlebury, M., Awad, P., Lema, P., Essouma, J.B., Parent, M., Descarries, L., Carmant, L.: Hippocampal atrophy and abnormal brain development following a prolonged hyperthermic seizure in the immature rat with a focal neocortical lesion. Neurobiol. Dis. 32(1), 176–182 (2008)Google Scholar
- 11.Koe, A., Jones, N., Salzberg, M.: Early life stress as an influence on limbic epilepsy: an hypothesis whose time has come? FNBEH 5, 12 (2009)Google Scholar
- 12.Mayya, M., Doignon, C.: Visual tracking of small animals based on real-time level set method with fast infra-red thermographic imaging. In: 2011 IEEE International Symposium on, Robotic and Sensors Environments (ROSE), pp. 60–64 (2011)Google Scholar
- 13.Sanon, N., Desgent, S., Carmant, L.: Atypical febrile seizures, mesial temporal lobe epilepsy, and dual pathology. Epilepsy Res. Treat. 2012, 1–9 (2012)CrossRefGoogle Scholar
- 14.Scantlebury, M., Gibbs, S., Foadjo, B., Lema, P., Psarropoulou, C., Carmant, L.: Febrile seizures in the predisposed brain: a new model of temporal lobe epilepsy. Ann. Neurol. 58(1), 41–49 (2005)CrossRefGoogle Scholar
- 15.Scantlebury, M., Heida, J.: Febrile seizures and temporal lobe epileptogenesis. Epilepsy Res. 89, 27–33 (2010)CrossRefGoogle Scholar
- 16.Scantlebury, M., Ouellet, P., Psarropoulou, C., Carmant, L.: Freeze lesion-induced focal cortical dysplasia predisposes to atypical hyperthermic seizures in the immature rat. Epilepsia 45(6), 592–600 (2004)CrossRefGoogle Scholar
- 17.Sunderam, S., Osorio, I.: Mesial temporal lobe seizures may activate thermoregulatory mechanisms in humans: an infrared study of facial temperature. Epilepsy Behav. 49(4), 399–406 (2003) Google Scholar
- 18.Torabi, A., Bilodeau, G.A., Levesque, M., Langlois, J., Lema, P., Carmant, L.: Measuring an animal body temperature in thermographic video using particle filter tracking. In: Advances in Visual Computing, Lecture Notes in Computer Science, vol. 5358, pp. 1081–1091. Springer, Berlin/Heidelberg (2008)Google Scholar
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