Iterative peak combination: a robust technique for identifying relevant features in medical image histograms
Iterative peak combination: a robust technique for identifying relevant features in medical image histograms
复制标题
迭代峰值组合:一种用于识别医学图像直方图中相关特征的强大技术
DOI:
10.1088/2057-1976/aa929d
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发表时间:
2017
影响因子:
1.4
通讯作者:
Joshi K
中科院分区:
文献类型:
--
作者:
Joshi K
Histogram-based methods can be used to analyse and transform medical images. Histogram specification is one such method which has been widely used to transform the histograms of cone beam CT (CBCT) images to match those of corresponding CT images. However, when the derived transformation is applied to the CBCT image pixels, significant artefacts can be produced. We propose the iterative peak combination algorithm, a novel and robust method for automatically identifying relevant features in medical image histograms. The procedure is conceptually simple and can be applied equally well to both CT and CBCT image histograms. We also demonstrate how iterative peak combination can be used to transform CBCT images in such as way as to improve the Hounsfield Unit (HU) calibration of CBCT image pixel values, without introducing additional artefacts. We analyse 36 pelvis CBCT images and show that the average difference in fat tissue pixel values between CT images and CBCT images processed using the iterative peak combination algorithm is 23.7 HU. Compared to 136.7 HU in unprocessed CBCT images and 50.9 in CBCT images processed using histogram specification.
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DOI:
10.1016/s0360-3016(02)02884-5
发表时间:
2002-08-01
影响因子:
7
作者:
Jaffray, DA;Siewerdsen, JH;Martinez, AA
通讯作者:
Martinez, AA
DOI:
--
发表时间:
2017
期刊:
Medical Imaging
影响因子:
--
作者:
K. Joshi;T. Marchant;C. Moore
通讯作者:
C. Moore
影响因子:
5.7
作者:
Létourneau, D;Wong, JW;Martinez, AA
通讯作者:
Martinez, AA
影响因子:
3.5
作者:
Park S;Plishker W;Quon H;Wong J;Shekhar R;Lee J
通讯作者:
Lee J
DOI:
10.1117/12.2254059
发表时间:
2017
期刊:
Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics
影响因子:
--
作者:
T. Marchant;K. Joshi;C. J. Moore
通讯作者:
C. J. Moore