Adaptive Distance Metric Learning for Diffusion Tensor Image Segmentation
文献类型：期刊论文
| 作者 | Kong Youyong; Wang Defeng; Shi Lin; Hui Steve C. N.; Chu Winnie C. W. |
| 刊名 | PLOS ONE
 |
| 出版日期 | 2014 |
| 英文摘要 | High quality segmentation of diffusion tensor images (DTI) is of key interest in biomedical research and clinical application. In previous studies, most efforts have been made to construct predefined metrics for different DTI segmentation tasks. These methods require adequate prior knowledge and tuning parameters. To overcome these disadvantages, we proposed to automatically learn an adaptive distance metric by a graph based semi-supervised learning model for DTI segmentation. An original discriminative distance vector was first formulated by combining both geometry and orientation distances derived from diffusion tensors. The kernel metric over the original distance and labels of all voxels were then simultaneously optimized in a graph based semi-supervised learning approach. Finally, the optimization task was efficiently solved with an iterative gradient descent method to achieve the optimal solution. With our approach, an adaptive distance metric could be available for each specific segmentation task. Experiments on synthetic and real brain DTI datasets were performed to demonstrate the effectiveness and robustness of the proposed distance metric learning approach. The performance of our approach was compared with three classical metrics in the graph based semi-supervised learning framework. |
| 收录类别 | SCI |
| 原文出处 | http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0092069 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/6191]  |
| 专题 | 深圳先进技术研究院_其他 |
| 作者单位 | PLOS ONE |
| 推荐引用方式 GB/T 7714 | Kong Youyong,Wang Defeng,Shi Lin,et al. Adaptive Distance Metric Learning for Diffusion Tensor Image Segmentation[J]. PLOS ONE,2014. |
| APA | Kong Youyong,Wang Defeng,Shi Lin,Hui Steve C. N.,&Chu Winnie C. W..(2014).Adaptive Distance Metric Learning for Diffusion Tensor Image Segmentation.PLOS ONE. |
| MLA | Kong Youyong,et al."Adaptive Distance Metric Learning for Diffusion Tensor Image Segmentation".PLOS ONE (2014). |
入库方式： OAI收割
来源：深圳先进技术研究院
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