公开(公告)号：US20220157048A1

公开(公告)日：2022-05-19

申请号：US17428955

申请日：2020-02-07

申请人： Singapore Health Services Pte Ltd ,  Agency For Science, Technology And Research

发明人： Daniel Shu Wei Ting ,  Gavin Siew Wei Tan ,  Tien Yin Wong ,  Ching-Yu Cheng ,  Chui Ming Gemmy Cheung ,  Yong Liu ,  Shaohua Li ,  Rick Siow Mong Goh

IPC分类号： G06V10/77 ,  G06N3/08 ,  G16H30/40 ,  G16H50/20 ,  G06T7/00

摘要： A computer-aided diagnosis (CAD) system for classification and visualisation of a 3D medical image comprises a classification component comprising a 2D convolutional neural network (CNN) that is configured to generate a prediction of one or more classes for 2D slices of the 3D medical image. The system also comprises a visualisation component that is configured to: determine, for a target class of said one or more classes, which slices belong to the target class; for each identified slice, determine, by back-propagation to an intermediate layer of the CNN, a contribution of each pixel of the identified slice to classification of the identified slice as belonging to the target class; and generate a heatmap that provides a visual indication of the contributions of respective pixels.