A two-step method for preprocessing volume data

Authors:
Cheng Bing;Wang Ying;Zheng Nanning;Bian Zhengzhong;Zhang Yongping
Affiliations:
Artificial Intelligence and Robotics Institute, Xi' an Jiaotong University, Xi'an, 710049, China and Department of Biomedical Engeering, Xi' an Jiaotong University, Xi'an, 710049, China;Medical experiment center of No.1 hospital, Xi' an Jiaotong University, Xi'an, 710049, China;Artificial Intelligence and Robotics Institute, Xi' an Jiaotong University, Xi'an, 710049, China;Department of Biomedical Engeering, Xi' an Jiaotong University, Xi'an, 710049, China;Artificial Intelligence and Robotics Institute, Xi' an Jiaotong University, Xi'an, 710049, China
Venue:
Computer Vision and Image Understanding
Year:
2004

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Abstract

A method to preprocess volume data for rendering and analyzing is proposed here. We segment the data by constructing a threshold super-surface, which is sensitive to noise. So first we reduce the noise using level sets. The data is decomposed into upper level sets and lower level sets, and the small connected components of each level set are removed. In the second step, the segmentation problem is modeled as a partial difference equation (PDE). The super-surface is obtained by solving this PDE. Finally, the performance of our method is demonstrated with an experiment.