Method and system used for achieving ultrasound digital scanning conversion based on dynamic random access memory (DRAM)

Abstract

The invention discloses a method and a system used for achieving ultrasound digital scanning conversion based on a dynamic random access memory (DRAM). According to the method for achieving the ultrasound digital scanning conversion based on the DRAM, a plurality of line caches are arranged in the DRAM inside a dynamic stability control (DSC) system, each line cache is used for caching a part of a scanning line in a frame scanning image, each time the scanning image needed to be displayed in a frame corresponding image display unit is stored in the DRAM with the scanning line as a unit, echo data corresponding to the same scanning line are stored in registers which are in the same line but have different addresses, with the scanning line as the unit, N echo data in each scanning line are read out from the DRAM by line by line and step by step each time, then the N echo data read out by each scanning line are stored in each internal line cache, coordinate conversion and interpolation algorithm are carried out on each pixel according to the display sequence of display images, and the grey value of each pixel in the display images is calculated. The method and the system used for achieving the ultrasound digital scanning conversion based on the DRAM have the advantages of being low in achieving cost, and high in reliability.

Description

technical field [0001] The invention relates to an ultrasonic digital signal processing technology, in particular to a method and system for realizing ultrasonic digital scan conversion based on a dynamic random access memory (DRAM). Background technique [0002] In a medical ultrasound imaging system, it is necessary to convert the echo information at the scanning end into an image at the display end for professional observation and diagnosis. This image conversion process is called digital scan conversion, or DSC (Digital Scan Converter) for short. Convenience of imaging quality plays a very important role, and has become a key technology in current medical ultrasound imaging, with broad application prospects. [0003] The core of the DSC technology is to use the coordinates of the pixel points of the display space map as the source. After a series of coordinate transformations, the original coordinates of the corresponding points in the scanned image are obtained, and the...

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Problems solved by technology

[0009] In order to solve many defects in the existing DSC implementation schemes, such as large amount of data calculation and high requirements for the system, the present invention proposes a method based on dynamic random access memory, using the smallest cost, and the simplest and most practical way to realize ultrasonic digital scan conversion and system

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