A marker-based watershed method for X-ray image segmentation
文献类型：期刊论文
| 作者 | Xiaodong Zhang; Fucang Jia; Suhuai Luo; Guiying Liu; Qingmao Hu |
| 刊名 | COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
 |
| 出版日期 | 2014 |
| 英文摘要 | Digital X-ray images are the most frequent modality for both screening and diagnosis in hospitals. To facilitate subsequent analysis such as quantification and computer aided diagnosis (CAD), it is desirable to exclude image background. A marker-based watershed segmentation method was proposed to segment background of X-ray images. The method consisted of six modules: image preprocessing, gradient computation, marker extraction, watershed segmentation from markers, region merging and background extraction. One hundred clinical direct radiograph X-ray images were used to validate the method. Manual thresholding and multiscale gradient based watershed method were implemented for comparison. The proposed method yielded a dice coefficient of 0.964 1 0.069, which was better than that of the manual thresholding (0.937 1 0.119) and that of multiscale gradient based watershed method (0.942 1 0.098). Special means were adopted to decrease the computational cost, including getting rid of few pixels with highest grayscale via percentile, calculation of gradient magnitude through simple operations, decreasing the number of markers by appropriate thresholding, and merging regions based on simple grayscale statistics. As a result, the processing time was at most 6s even for a 3072 x 3072 image on a Pentium 4 PC with 2.4 GHz CPU (4 cores) and 2G RAM, which was more than one time faster than that of the multiscale gradient based watershed method. The proposed method could be a potential tool for diagnosis and quantification of X-ray images. |
| 收录类别 | SCI |
| 原文出处 | http://ac.els-cdn.com/S016926071300415X/1-s2.0-S016926071300415X-main.pdf?_tid=44c2f016-0cea-11e5-97d1-00000aab0f26&acdnat=1433663782_231990963b0abf747a9f8b1cc97deb81 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5833]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE |
| 推荐引用方式 GB/T 7714 | Xiaodong Zhang,Fucang Jia,Suhuai Luo,et al. A marker-based watershed method for X-ray image segmentation[J]. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE,2014. |
| APA | Xiaodong Zhang,Fucang Jia,Suhuai Luo,Guiying Liu,&Qingmao Hu.(2014).A marker-based watershed method for X-ray image segmentation.COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE. |
| MLA | Xiaodong Zhang,et al."A marker-based watershed method for X-ray image segmentation".COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE (2014). |
入库方式： OAI收割
来源：深圳先进技术研究院
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