Shanghai United Imaging Healthcare Co., Ltd.

Haohua Sun

Wenjing Cao

Stanislav Zabic

Patrick Joseph Kling

Zhicong Yu

Alexander Zamyatin

Liyi Zhao

Systems and methods for determining a target data processing model is provided. The methods may include obtaining a data set including data to be processed by a target data processing model; processing the data set using an evaluation model to obtain an evaluation result for each of a plurality of candidate data processing models, the evaluation model being a trained machine learning model; and determining, from the plurality of candidate data processing models, the selected data processing model based on the evaluation results.

Methods and systems for selecting data processing models

The present disclosure relates to systems and methods for image reconstruction. The system may obtain an initial image to be processed. The system may generate a reconstructed image by performing a plurality of iteration steps on the initial image. Each of the plurality of iteration steps may include a first optimization operation and at least one second optimization operation. The first optimization operation and the at least one second optimization operation may be executed sequentially. The first optimization operation may include receiving an image to be processed in the iteration step and determining an updated image by preliminarily optimizing the image to be processed. The at least one second optimization operation may include determining an optimized image by reducing interference information of the updated image and designating the optimized image as a next image to be processed in a next iteration step. The interference information may include noise information and/or artifact information.

Systems and methods for image reconstruction

The disclosure relates to systems and methods for iterative reconstruction. Raw data detected from a plurality of angles by an imaging device may be obtained. A first seed image may be generated by performing a filtered back projection on the raw data. A first air mask may be determined by performing a minimum value back projection (BP) on the raw data. One or more images may be reconstructed by performing an iterative reconstruction based on the first seed image, the first air mask, and the raw data.

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Shanghai, China

Haohua Sun