Imaging system and method

The invention relates to an imaging system and method. The imaging system comprises a positioning image acquisition unit used for acquiring a positioning image of a scanned object; the monitoring slice image acquisition unit is used for determining a key point corresponding to the position of the target region of interest in the positioning image by using a neural network, and acquiring a monitoring slice image of the scanned object at the position of the key point; and the target region-of-interest segmentation unit is used for segmenting a target region-of-interest on the monitoring slice image. According to the method, the position of the monitoring slice can be accurately obtained, and the target region of interest can be accurately segmented through cascaded coarse segmentation and fine segmentation. 本公开涉及成像系统及方法。具体一种成像系统包括：定位图像获取单元，用于获取扫查对象的定位图像；监测切片图像获取单元，用于利用神经网络确定在所述定位图像中与目标感兴趣区域的位置相对应的关键点，并获取该关键点所在位置处所述扫查对象的的监测切片图像；目标感兴趣区域分割单元，用于在所述监测切片图像上分割出目标感兴趣区域。本发明可以准确地获取监测切片的位置，并且通过级联地粗分割与精细分割可以准确地分割出目标感兴趣区域。