Video Amplification for Biomedical Dynamic Image Using the Separation of Chromophore Component

Munenori Fukunishi, Kouki Kurita, Norimichi Tsumura

JIST 2017 (accepted)

Abstract
In this paper, we propose a novel method of video amplification based on the separation of chromophore component. A video amplification method, Eulerian video magnification (EVM), was originally proposed by Wu et al.. The method shows the effectiveness to amplify slight change of facial color and can visualize the blood flow in human faces effectively. However, the conventional method was evaluated under stable condition of illumination. It is necessary to enhance the robustness against environmental change for practical use. The proposed method amplifies the variation of the chromophore component which is separated from shading component. We confirm that the proposed method can visualize blood flow in human face without having artifacts caused by shading change. We also apply the video amplification framework to a tongue movie as preliminary work for medical application and confirmed the effectiveness to visualize the blood pulse avoiding any clear artifacts.

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