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    • 10. 发明授权
    • System and method for multiple-instance learning for computer aided diagnosis
    • 用于计算机辅助诊断的多实例学习的系统和方法
    • US08131039B2
    • 2012-03-06
    • US12238536
    • 2008-09-26
    • Balaji KrishnapuramVikas C. RaykarMurat DundarR. Bharat Rao
    • Balaji KrishnapuramVikas C. RaykarMurat DundarR. Bharat Rao
    • G06K9/00
    • G06K9/6278G06K9/6231G06K2209/053
    • A method for training a classifier for classifying candidate regions in computer aided diagnosis of digital medical images includes providing a training set of images, each image including one or more candidate regions that have been identified as suspicious by a computer aided diagnosis system. Each image has been manually annotated to identify malignant regions. Multiple instance learning is applied to train a classifier to classify suspicious regions in a new image as malignant or benign by identifying those candidate regions that overlap a same identified malignant region, grouping each candidate region that overlaps the same identified malignant region into a same bag, and maximizing a probability P = ∏ i = 1 N ⁢ p i y i ⁡ ( 1 - p i ) 1 - y i , wherein N is a number of bags, pi is a probability of bag i containing a candidate region that overlaps with an identified malignant region, and yi is a label where a value of 1 indicates malignancy and 0 otherwise.
    • 一种训练用于对数字医学图像的计算机辅助诊断中的候选区域进行分类的分类器的方法包括提供训练图像组,每个图像包括被计算机辅助诊断系统识别为可疑的一个或多个候选区域。 已经手动注释每个图像以识别恶性区域。 应用多实例学习来训练分类器,通过识别与相同的识别的恶性区域重叠的候选区域,将新图像中的可疑区域分类为恶性或良性,将与相同的所识别的恶性区域重叠的每个候选区域分组成相同的袋子, 并且最大化概率P =Πi = 1 N piyi⁡(1-pi)1-yi,其中N是袋的数量,pi是包含与所识别的恶性区域重叠的候选区域的袋i的概率, yi是1的值,表示恶性的标签,否则为0。