Super-resolution reconstruction preprocessing method and super-resolution reconstruction method for ultrasound contrast image

Abstract

The invention provides a super-resolution reconstruction preprocessing method for an ultrasound contrast image, and the super-resolution reconstruction preprocessing method is characterized in that the super-resolution reconstruction preprocessing method comprises the steps: obtaining a to-be-preprocessed image set; obtaining a gray level fluctuation signal of a pixel point in the to-be-preprocessed registration contrast image; performing denoising reconstruction on the to-be-preprocessed image set based on the gray level fluctuation signals of the co-located pixel point set so that a reconstruction characteristic parameter image is obtained; and performing interpolation calculation on the reconstructed feature parameter image based on the co-located pixel point set and the gray level fluctuation signal of the associated pixel point set associated with the co-located pixel point set to obtain a sparse image. By analyzing a gray level fluctuation signal of a co-located pixel point set in a plurality of frames of to-be-preprocessed registration radiography images, the super-resolution reconstruction preprocessing method can improve a signal-to-noise ratio and a signal-to-background ratio; and by performing interpolation on the reconstructed feature parameter image through the similarity of the gray level fluctuation signals of the co-located pixel point set and the associated pixel point set, the super-resolution reconstruction preprocessing method can realize spatial decoupling of the overlapped microbubbles, thus effectively reducing the influence of strong noise and high-concentration microbubbles on reconstruction.

Description

technical field [0001] The present invention relates to the technical field of ultrasound imaging, and in particular to a super-resolution reconstruction preprocessing method for ultrasound contrast images, a super-resolution reconstruction method, a super-resolution reconstruction preprocessing device, a super-resolution reconstruction device, electronic equipment, and a computer-readable storage medium. Background technique [0002] Ultrasound Localization Microscope (ULM), an ultra-fine blood flow imaging technology, overcomes the influence of acoustic diffraction and realizes super-resolution imaging of tiny blood vessels. At present, high-concentration microbubbles that can shorten the acquisition time are often used clinically. There is spatial coupling between high-concentration microbubbles, which affects the accuracy of super-resolution reconstruction. In the clinical acquisition process, the interference of strong noise and tissue background signal cannot be avoide...

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Problems solved by technology

[0003] In view of this, an embodiment of the present invention provides a super-resolution reconstruction preprocessing method for ultrasound contrast images, a super-resolution reconstruction method, a super-resolution reconstruction preprocessing device, a super-resolution reconstruction device, electronic equipment, and a computer-readable storage medium, to Solve the problem that in the existing technology, due to the limitation of clinical acquisition conditions, it is impossible to achieve fast, efficient and accurate reconstruction of super-resolution images of tiny blood vessels

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