|
KMID : 0372919970180030223
|
|
Journal of Biomedical Engineering Research
1997 Volume.18 No. 3 p.223 ~ p.231
|
|
|
Interframe Coding of 3-D Medical Image Using Warping Prediction
|
|
So Yun-Sung
Cho Hyun-Duck
Kim Jong-Hyo
Ra Jong-Beom
|
|
|
Abstract
|
|
|
|
In this paper, an interframe coding method for volumetric medical images is proposed. By treating interslice variations as the motion of bones or tissues, we use the motion compensation (MC) technique to predict the current frame from the previous frame. Instead of a block matching algorithm (BMA), which is the most common motion estimation (ME) algorithm in video coding, image warping with biolinear transformation has been suggested to predict complex interslice object variation in medical images. When an object disappears between slices, however, warping prediction has poor performance. In order to overcome this drawback, an overlapped block motion compensation (OBMC) technique is combined with carping prediction. Motion compensated residual images are then encoded by using an embedded zerotree wavelet (EZW) coder with small modification for consistent quality of reconstructed images. The experimental results show that the interframe coding suing warping prediction provides better performance compared with interframe coding, and the OBMC scheme gives some additional improvement over the warping-only MC method.
|
|
|
KEYWORD
|
|
|
Medical image, Interslice correlation, Motion compensation, Warping, OBMC
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|