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.
[PDF] (to appeare)