DocumentCode :
3198178
Title :
An improved method for IR image filtering from living beings
Author :
Gavriloaia, Bogdan-Mihai G. ; Vizireanu, Radu-Constantin R. ; Neamtu, Catalin M. ; Popescu, Horia I. ; Grigore, Corina I. ; Gavriloaia, Gheorghe V.
Author_Institution :
Politechnical Univ. of Bucharest, Bucharest, Romania
fYear :
2013
fDate :
3-7 July 2013
Firstpage :
3395
Lastpage :
3398
Abstract :
A new method to enhancing the quality of the images acquired with infrared camera is presented. Usually, thermal image filtering process relies on heat conductive component that propagates through tissue. An improved method for nonlinear filtering is presented in this article. A new component of the heat, the convection is associated heat that propagates through the tissues of living beings. From the physical point of view, this component is the result of blood flow through the tissue. The proposed algorithm uses both parts of the heat components and iteratively minimizes the noise that is added to the signal. During the iterative filtering process, the noise is more quickly minimized than other methods can do. Thermal contour shape is an important indicator for oncologists to diagnose superficial cancers such as breast, thyroid and skin. The proposed method has been tested on more patients and an example of an IR image filtering taken from a patient suffering from papillary carcinoma is shown at different iterations. The algorithm convergence speed and the contour shape are compared with the results obtained by using anisotropic filtering.
Keywords :
biological organs; biomedical optical imaging; biothermics; blood; cancer; convection; filtering theory; haemodynamics; heat conduction; image denoising; image sensors; infrared imaging; iterative methods; medical image processing; minimisation; skin; tumours; algorithm convergence speed; anisotropic filtering; blood flow; breast; convection; heat conductive component; heat propagation; image quality acquisition; infrared camera; infrared image filtering; iterative filtering process; iterative minimization; noise; nonlinear filtering; oncologists; papillary carcinoma; skin; superficial cancer diagnosis; thermal contour shape; thermal image filtering; thyroid; tissue; Anisotropic magnetoresistance; Educational institutions; Equations; Filtering; Heating; Mathematical model; Noise;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE
Conference_Location :
Osaka
ISSN :
1557-170X
Type :
conf
DOI :
10.1109/EMBC.2013.6610270
Filename :
6610270
Link To Document :
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