Ultrasonic image magnifying method

Abstract

The invention discloses an ultrasonic image magnifying method. The method has the following advantages: in a magnification region on the ultrasonic image, dense axial ultrasonic scanning lines are arranged to scan the corresponding parts of the target tissue, thus improving the lateral resolution of the image in the magnification region, the axial ultrasonic signals after scanning are sampled at the high sampling rate of 20-103MHz to obtain the source data, thus improving the axial resolution of the image in the magnification region, then parallel processing is carried out on the source data in the region of the whole ultrasonic image and the source data in the magnification region, the matched source data quantities are respectively extracted in axial direction according to the sizes of the display regions of the region of the whole ultrasonic image and the magnification region and then the final whole ultrasonic image and the final image in the magnification region are synchronouslydisplayed; and the lateral and axial resolutions of the image in the magnification region are improved and are more than the lateral and axial resolutions of the magnification region on the final whole ultrasonic image, so the image in the magnification region has high observation accuracy and better detail resolution capability, namely high detail resolution.

Description

technical field [0001] The invention relates to an ultrasonic image enlargement method. Background technique [0002] Existing ultrasonic image enlargement is usually based on the scaling of the physical size of the existing image data of the original normal scan image. After entering the image magnification mode, first select an area that you want to enlarge in the normal image range, the size and position of this area can be adjusted, such as figure 1 As shown, after selecting and zooming in, the original full-size image is displayed in a small size in the corner area of ​​the screen, and the enlarged area image is displayed at the position of the original image with a size equivalent to the size of the original full-size image. exist figure 1 Among them, area A is the original image, and area B is the part of the image that needs to be enlarged. When enlarging area B, based on the existing scanning line sln3 (sln refers to the ultrasonic scanning line, here sln3 refers ...

AI Technical Summary

Problems solved by technology

Image magnification is based on image storage data that has undergone spatial scanning transformation. The magnified image has no added information, but only post-processing of interpolation. In this way, the magnified image cannot improve the observation accuracy, and the ability to distinguish details is very poor.

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