Correspondence between different view breast X-rays using a simulation of breast deformation
Correspondence between different view breast X-rays using a simulation of breast deformation
复制标题
使用乳房变形模拟的不同视角乳房 X 射线之间的对应关系
DOI：
--
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
M. Brady
中科院分区：
文献类型：
--
作者：
Y. Kita;R. Highnam;M. Brady
我们开发了一种方法，以找到对应的颅尾侧（CC）和中侧斜（MLO） x线图像的同一乳房。放射科医生认为，为了更可靠地诊断早期乳腺癌，这些图像对之间的匹配是必不可少的。这两张照片是在乳房被压缩在x光机的卡带和底片之间时拍摄的，但是，几乎总是，在每个方向上的程度不同。乳房的变形是由不同方向上的不同压迫引起的，导致相应的点远离双目立体视觉所熟悉的直线“极线”。本文提出的方法是通过模拟点对应的三维线（曲线）的变形和投影，计算出与CC图像中点对应的MLO图像中的线。实际图像的实验表明，该方法具有较好的预测效果，可用于找到两幅图像中点的精确对应关系。
We develop a method to find correspondences between a Cranio-Caudal (CC) and a Medio-Lateral Oblique (MLO) X-ray image of the same breast. Matching between such pairs of images is considered essential by radiologists for more reliable diagnosis of early breast cancer. The two images are taken while the breast is compressed between the cassette and plate of the X-ray machine, but, almost always, to a different extent in each direction. The deformations of the breast caused by the different compressions in the different directions causes corresponding points to appear far from the straight "epipolar lines" familiar from binocular stereo vision. The method developed in this paper calculates the line in a MLO image corresponding to a point in the CC image through simulation of the deformation and the projection of a 3D line (curve) corresponding to the point. Experiments using actual images show that the method gives good predictions which can be used to find exact correspondences between points in the two images.