One of the basic method to display medical volume data is to display arbitary oblique. The existing oblique extracting algorithms are somewhat blurring. In this paper, we presented theoretic analysis and experiment research in pixel resampling, pixel reassigning and weight coe fficient selecting. Based on this analysis, we presented a selective neighbourhood voxels algorithm. It solved the problem of edge blurring fairly. The algorithm optimization was also presented to make the algorithm faster, and it was...