Optical flow estimation for measuring microcirculation in human nasal mucosa from contact endoscopic images

Author

Yi, WonJin ; Park, KwangSuk ; Rhee, ChaeSeo ; Lee, ChulHee

Author_Institution

Interdisciplinary Program in Med. & Biol. Eng. Major, Seoul Nat. Univ., South Korea

Volume

2

fYear

1999

fDate

36434

Abstract

Based on the knowledge that increases in nasal obstruction are correlated with transient engorgement of nasal mucosa, the authors made attempts to measure nasal mucosa blood flow from contact endoscopic images. The authors present a new method for measuring blood flow in nasal mucosa using optical flow estimation. From the images blurred with a Gaussian function, the gradients were calculated. Then, local optimization was performed for neighborhood pixels by a least square minimization

Keywords

blood flow measurement; haemorheology; image sequences; medical image processing; minimisation; Gaussian function-blurred images; contact endoscopic images; human nasal mucosa; least square minimization; local optimization; medical diagnostic imaging; microcirculation measurement; nasal obstruction; neighborhood pixels; optical flow estimation; transient engorgement; Anthropometry; Biomedical measurements; Biomedical optical imaging; Blood flow; Equations; Fluid flow measurement; Humans; Image motion analysis; Least squares methods; Optical computing;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804302

Filename

804302