搜索结果: 1-2 共查到“生物学 Graph”相关记录2条 . 查询时间(0.078 秒)
Noninvasive assessment of extracellular and intracellular dehydration in healthy humans using the resistance-reactance–score graph method
volume depletion hydration assessment BIVA hypohydration hypovolemia
2018/11/28
Background: Few dehydration assessment measures provide accurate information; most are based on reference change values and very few are diagnostically accurate from a single observation or measure. B...
一种基于Graph Cuts的多尺度乳腺肿块分割方法
肿块分割 graph cuts 多尺度 乳腺X线图像
2014/4/28
本文提出一种基于Graph Cuts的多尺度乳腺肿块自动分割方法。首先,应用区域统计融合方法对图像进行粗分割,将得到的粗轮廓作为后续Graph Cuts分割的初始轮廓。在迭代优化阶段,引入多尺度分析方法,以高斯金字塔分解得到的多尺度图像序列代替固定尺度的原始图像序列估计高斯混合模型(GMM)参数,将粗糙尺度的易分割性与精细尺度的精确性互补,使得算法以较少样本快速确定GMM参数以执行Graph Cu...