Optical flow based frame interpolation of ultrasound images

Authors:
Tae-Jin Nam;Rae-Hong Park;Jae-Ho Yun
Affiliations:
Department of Electronic Engineering, Sogang University, Seoul, Korea;Department of Electronic Engineering, Sogang University, Seoul, Korea;Department of Electronic Engineering, Sogang University, Seoul, Korea
Venue:
ICIAR'06 Proceedings of the Third international conference on Image Analysis and Recognition - Volume Part I
Year:
2006

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Abstract

In this paper, we present an optical flow based frame rate up-conversion method for ultrasound images. The conventional mechanical scan method for multi-planar images has a slow frame rate, thus frame interpolation is desirable for smooth display. In the proposed frame rate up-conversion method, several new interpolated frames are inserted between two input frames, giving smooth renditions to human eyes. We employ a window-based optical flow based method to find accurate motion estimates for frame interpolation. Consequently, the proposed method can provide detailed and improved interpolated images without block artifact. Experimental results with three sets of ultrasound image sequences show the effectiveness of the proposed interpolation method.