Rotation judgment and error correction method in medical ultrasonic panoramic imaging

Abstract

The invention discloses a rotation judgment and error correction method in medical ultrasonic panoramic imaging, which mainly comprises the following steps: making statistics on the standard deviation of each template registration result, judging image rotation based on the standard deviation, and lowering the interval frame number of the image sequence registration according to the magnitude of the rotation angle. The method specifically comprises the following steps: while registering two ultrasonic images in a multi-template mode, making statistics on the standard deviation of each template registration result; judging the magnitude of the rotation angle between the images according to the standard deviation, since the larger the relative rotation angle between the registration images is, the larger the standard deviation is; and when the rotation angle is too large, lowering the interval frame number of the registration of the registration sequence, thereby enhancing the registration accuracy. The invention creatively provides a rotation judgment method based on the standard deviation of the template registration result, and enhances the registration accuracy when a large angle exists between the image sequence frames in real-time ultrasonic panoramic imaging.

Description

technical field [0001] The invention relates to computer-aided medical imaging technology, in particular to a rotation judgment and error correction method in medical ultrasonic wide-view imaging. Background technique [0002] Medical ultrasound diagnosis is an important part of modern imaging medicine, and it is of great value in the pathological diagnosis of many tissues of the human body (such as heart, liver, neurovascular, etc.). However, due to the limitation of the width of the ultrasound probe and the scanning angle, the field of view of real-time ultrasound scanning is limited and cannot reflect the overall image of the observed tissue, which affects the effect of doctors' diagnosis. In response to this problem, people have proposed ultrasonic wide-view imaging technology. It obtains a series of two-dimensional section images by moving the probe, and stitches the series of two-dimensional images into a continuous ultra-wide field of view section image by using comp...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, to provide a rotation judgment and error correction method in medical ultrasonic wide-view imaging; to overcome the relatively large relative rotation angle between registration images in the existing wide-view imaging The registration accuracy is not high. On the basis of estimating the rotation angle between the images, the number of frames apart from the image sequence is corrected to improve the registration accuracy of the entire image sequence.

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