Title :
An improved method for velocity estimation of red blood cell in microcirculation
Author :
Wen-Chen Lin ; Tung-Ju Lin ; Cheng-Lun Tsai ; Kang-Ping Lin
Author_Institution :
Dept. of Electr. Eng., Chung Yuan Christian Univ., Chungli, Taiwan
Abstract :
This paper presents a coarse-to-fine combined method for dealing with large displacement situations caused by low speed of frame rate in microscopic video sequences. Motion image estimation method utilizes the modified block matching method based on image warping to perform a wide range of changes in the amount of search comparison, and then using the optical flow method to fine adjustment pixel by pixel, to complete the overall precision of the estimation. In the evaluation experiment, we have compared both current optical flow and proposed method by testing them with simulated vessel images, the results of the estimation is quite accurate.
Keywords :
1/f noise; biomedical optical imaging; blood; blood vessels; haemodynamics; image matching; image sequences; medical image processing; motion estimation; video signal processing; coarse-to-fine combined method; fine adjustment pixel; frame rate; image warping; microcirculation; microscopic video sequences; modified block matching method; motion image estimation method; optical flow method; red blood cell; simulated vessel images; velocity estimation; Biomedical optical imaging; Blood flow; Computer vision; Estimation; Image motion analysis; Motion estimation; Optical imaging;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/EMBC.2014.6943567
