These large absolute differences between the skeletal ages of the hand-wrist and the knee cannot be explained completely by the effects of observer errors.
手腕部和膝部骨龄之间所存在的较大的绝对差值不能完全用观察误差加以解释。
2
Bone age automatic assessment can be divided into four periods: preprocessing of X-ray hand-wrist image, image contrast enhancement, feature extraction and feature matching.
骨龄自动识别大致分为四个阶段：手腕骨图像的预处理、图像增强、图像特征提取和图像特征匹配。
3
Masters shot a hand across the table and gripped his wrist.