Method and system for image registration using an intelligent artificial agent

A manual, registration technology, applied in image analysis, image enhancement, graphic image conversion, etc., can solve problems such as poor performance of non-convexity optimization
CN107403446AActive Publication Date: 2017-11-28SIEMENS HEALTHCARE GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SIEMENS HEALTHCARE GMBH
Publication Date
2017-11-28

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Abstract

Methods and systems for image registration using an intelligent artificial agent are disclosed. In an intelligent artificial agent based registration method, a current state observation of an artificial agent is determined based on the medical images to be registered and current transformation parameters. Action-values are calculated for a plurality of actions available to the artificial agent based on the current state observation using a machine learning based model, such as a trained deep neural network (DNN). The actions correspond to predetermined adjustments of the transformation parameters. An action having a highest action-value is selected from the plurality of actions and the transformation parameters are adjusted by the predetermined adjustment corresponding to the selected action. The determining, calculating, and selecting steps are repeated for a plurality of iterations, and the medical images are registered using final transformation parameters resulting from the plurality of iterations.
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Description

[0001] This application claims U.S. Provisional Application No. 62 / 338,059, filed May 18, 2016, U.S. Provisional Application No. 62 / 344,125, filed June 1, 2016, and U.S. Provisional Application No. 62 / 401,977, filed September 30, 2016 interests, the disclosure of this patent application is incorporated herein by reference in its entirety. Background technique

[0002] The present invention relates to registration of medical images, and more particularly computer-based automated medical image registration using intelligent artificial agents.

[0003] Medical image registration is an important technology for image-guided therapy, automated diagnostic imaging, and machine-driven image understanding. The goal of image registration is to recover the correspondence between two or more medical images that may be acquired from different patients / subjects, the same patient at different time points, different medical imaging modalities, etc., in order to align or fuse the images . Ali...

Claims

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