A method and device for improving image reconstruction speed

Abstract

The invention discloses a method and device for improving image reconstruction speed, which are used to obtain the optimal thread configuration of each operating unit under different scanning conditions, thereby improving the image reconstruction speed. The method includes: obtaining scan data, and extracting Build imaging parameters; generate thread configuration information. The thread configuration information includes the number of threads of each image reconstruction running unit. Use each thread configuration information to reconstruct the scanned data to obtain the image reconstruction speed corresponding to different thread configuration information; obtain the image reconstruction speed that satisfies the preset Conditional image reconstruction speed, the thread configuration information corresponding to the image reconstruction speed that meets the preset conditions is composed of a candidate thread configuration information set, and one thread configuration information is extracted from the candidate thread configuration information set as the optimal thread configuration information, and the optimal thread Configuration information is used for image reconstruction from scanned data with imaging parameters.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for increasing image reconstruction speed. Background technique [0002] In the process of image reconstruction based on CT (Computed Tomography, Computed Tomography) scan data, due to real-time requirements, the CT image reconstruction system needs to have a higher image reconstruction speed, and the image reconstruction speed usually refers to the reconstructed images per second. number of images. [0003] CT image reconstruction usually adopts pipeline technology, and multiple steps involved in image reconstruction are run in parallel in pipeline mode. For example, tomographic image reconstruction can include several reconstruction steps such as reading data, correction, back-projection, and post-processing. Steps run in parallel in a pipelined fashion. In order to speed up the running speed of the system, each running unit can adopt multithreadi...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and device for improving the speed of image reconstruction to solve the problem that the number of pre-configured fixed threads in the prior art cannot be adapted. Under different scanning and imaging parameters, the speed of image reconstruction can reach a relatively fast level.

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