Multi-modal image registration method and device, electronic equipment and storage medium

Abstract

The invention discloses a multi-modal image registration method and device, electronic equipment and a storage medium. The method comprises the following steps: judging whether a to-be-registered areaexists in a to-be-registered image and a registration reference image or not, wherein the to-be-registered image and the registration reference image are medical images acquired by using imaging equipment with different modes; performing two-dimensional sliding window search in a first image direction and two-dimensional sliding window search in a second image direction perpendicular to the firstimage direction on the to-be-registered image and the registration reference image under the condition that the to-be-registered area exists in the to-be-registered image and the registration reference image; and determining registration information of the to-be-registered image registered to the registration reference image according to a sliding window search result. Coarse registration of themulti-modal image is realized, the calculation amount is small, and the efficiency is high.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to a multimodal image registration method, device, electronic equipment, and storage medium. Background technique [0002] Image registration is a necessary processing step for clinical application requirements such as medical image comparison, data fusion, and change analysis. In image registration, it is often necessary to perform registration processing on images from different imaging devices (multimodal image registration technology), and complementary fusion of information characteristics of different modalities is of great significance for applications such as medical diagnosis and surgical planning. [0003] Multimodal image registration is the registration of images of the same patient acquired by different types of medical equipment. Due to the differences in imaging mechanisms of different devices, multimodal image registration faces more challenges. For example...

AI Technical Summary

Problems solved by technology

For example, different types of equipment have different coverages of images collected. CT (Computed Tomography) and PET (Positron Emission Computed Tomography) can obtain whole-body images, while MR (Magnetic Resonance) can only obtain images of a small field of view; Even if multi-modal images collect images of the same part, their characteristics are significantly different. CT images clearly reflect the contours of dense tissues such as bones, PET images are sensitive to abnormal areas of physiological metabolism, and MR images have high contrast to soft tissues; Modal images are often collected by different devices at different times. Due to changes in the patient's body position, the size and shape of the organs in the image will change, which increases the difficulty of registration processing.

Images