Method for monitoring wounds

Details Method for monitoring wounds Method for monitoring wounds

2007-07-24

2007-07-24

Bali, Vikkram (Department: 2624)

Image analysis

Applications

Biomedical applications

C382S199000

Reexamination Certificate

active

10712733

ABSTRACT:
A method of quantifying the extent of erythema around a wound of a patient is disclosed. An image (200) is captured that includes the wound, the erythema and surrounding skin. A border of the wound is identified (step232) and a distance transform is performed (step234) on an area of the image between the wound border and a boundary of the image to determine bands of pixels (226, 228, 230), wherein the pixels within each band are equidistant from the wound border. A representative value such as average brightness is calculated for each band (step238), and a threshold level is defined relative to the representative value of the surrounding skin (step240). The extent of the erythema is then calculated.

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patent: 6757413 (2004-06-01), LeMahieu
Nischik and Forster Analysis of Skin Erythema Using True-Color Images, IEEE Transactions on Medical Imaging, vol. 16, No. 6 Dec. 1997 pp. 711-716.
Herbin et al. Assessment of Healing Kinetics Through True Color Image Processing, IEEE Transactions on Medical Imaging, vol. 12, No. 1 Mar. 1993, pp. 39-43.
Mekkes et al. Image Processing in the Study of Wound Healing, Kinetics in Dermatology, 1995; 13: 401-407.

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