Method and device for reconstructing CT image and storage medium
AssigneesTsinghua University, Nuctech Company Limited
InventorsYuxiang Xing, Li Zhang, Jianmin Li, Zhiqiang Chen, Jianping Gu
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Abstract
A method and device for reconstructing a CT image and a storage medium are disclosed. CT scanning is performed on an object to be inspected to obtain projection data. The projection data is processed using a first convolutional neural network to obtain processed projection data. The first convolutional neural network comprises a plurality of convolutional layers. A back-projection operation is performed on the processed projection data to obtain a reconstructed image.
Claims17
A method for reconstructing a Computed Tomography (CT) image, comprising:
- performing CT scanning on an object to be inspected to obtain projection data;
- processing the projection data by using a first convolutional neural network to obtain processed projection data, wherein the first convolutional neural network comprises a plurality of convolutional layers;
- performing a back-projection operation on the processed projection data to obtain a reconstructed image;
- and
- processing the reconstructed image by using a second convolutional neural network to obtain a resultant image.
A device for reconstructing a Computed Tomography (CT) image, comprising:
- a CT scanning apparatus configured to perform CT scanning on an object to be inspected to obtain projection data;
- a processor configured to:
- process projection data by using a first convolutional neural network to obtain processed projection data, and perform a back-projection operation on the processed projection data to obtain a reconstructed image, wherein the first convolutional neural network comprises a plurality of convolutional layers,
- process the reconstructed image by using a second convolutional neural network to obtain a resultant image.
A non-transitory computer-readable medium having computer programs stored thereon, which when being executed by a processor, cause the processor to perform the following steps:
- processing projection data by using a first convolutional neural network to obtain processed projection data, wherein the projection data is obtained by performing CT scanning on an object to be inspected, and the first convolutional neural network comprises a plurality of convolutional layers;
- performing a back-projection operation on the processed projection data to obtain a reconstructed image;
- and
- processing the reconstructed image by using a second convolutional neural network to obtain a resultant image.
Dependencies are inferred from the claim text.