Digital filtering method and device in multi-modal imaging and multi-modal imaging technology system

Abstract

The invention provides a digital filtering method and device in multi-mode imaging and a multi-mode imaging system. The method comprises the following steps: receiving a digital signal of any imaging mode type output by a data acquisition device, wherein any one imaging mode type comprises a photoacoustic mode, an ultrasonic mode or an elastic mode; performing median filtering on the digital signal to output a first digital signal; performing Renyi entropy filtering on the digital signal to output a second digital signal; and determining a filtered signal of the any imaging mode type based on the first digital signal and the second digital signal. According to the method, the device and the system provided by the invention, the edge information and the structural characteristics of the signals are effectively stored while digital filtering is de-noised in multi-modal imaging, and the final imaging is more accurate and better in effect by performing image synthesis on the signals of various modal types.

Description

technical field [0001] The invention relates to the technical field of digital filtering, in particular to a digital filtering method and device in multimodal imaging and a multimodal imaging technical system. Background technique [0002] The imaging mechanisms of various imaging technologies are different, and the biological characteristics they reflect are also different, and they have their own advantages in terms of spatial resolution, temporal resolution, contrast, sensitivity, and imaging depth. The information obtained by a single imaging modality has certain limitations and cannot fully reflect the overall characteristics of organisms. How to obtain various information inside the organism more comprehensively and accurately is an important issue in the development of imaging. Multimodal fusion imaging is one of the effective ways to solve this important problem, and it is also an important trend in the current development of imaging. [0003] Ultrasound imaging ha...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a digital filtering method in multimodal imaging, which is used to solve the defects of poor denoising effect caused by the traditional filtering method in the existing multimodal imaging technology and the inability to retain the implicit information of the original signal. By adopting the cascading method of median filter and Renyi entropy filter for filtering, the output filtered signal effectively preserves the edge information and structural characteristics of the signal while denoising

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