Template-based CCD-DR (charge coupled device-digital radiography) image splicing method

Abstract

The invention provides a template-based CCD-DR (charge coupled device-digital radiography) image splicing method, comprising the following steps of: 1) collecting the template and a real object DR image in a certain visual field range by using a CCD array; 2) pre-processing the acquired CCD-DR image; 3) extracting characteristic points from the template DR images; 4) performing registration to the characteristic points of the adjacent template DR images; and 5) splicing a plurality of real object DR images which are collected by the CCD array according to the registration relationship of characteristic points acquired in the step 4). The method performs registration to the characteristic points of the template DR images, determines the position change relationship between the adjacent DR images in the CCD array and stores the related image registration information; under the condition that the CCD-DR image collection conditions are unchanged, the image registration information is repetitively transferred to splice the real object DR images so as to highly-efficiently acquire panoramic DR images with high resolution and large visual field.

Description

technical field [0001] The invention relates to a medical image mosaic method, that is, to a method for collecting DR images within a certain field of view by using a CCD array, and using the positional relationship determined by the template CCD-DR image to realize the mosaic method of the real CCD-DR image. Background technique [0002] With the continuous development of visualization technology and modern medical technology, X-ray medical images are widely used in medical image analysis such as clinical diagnosis and medical research. Especially in image-guided orthopedic diagnosis and treatment, it has important clinical application value. In the orthopedic diagnosis and surgical treatment of the human spine and long bones, it is often necessary to obtain large-scale, super-resolution, and complete anatomical structure images to conduct comprehensive and intuitive observation and analysis of the patient's lesion and its surrounding parts. [0003] At present, digital X-...

AI Technical Summary

Problems solved by technology

However, in view of the single particularity of the orthopedic medical image scene, high-quality medical stitching images cannot be obtained by using the traditional stitching and fusion process technology. Defects such as image chromatic aberration and artifacts are common and the stitching efficiency is low.

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