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本文介绍了多功能B型超声诊断仪中的实时帧存贮技术。主要讨论了扇形超声断层图像的各像素的极坐标转换成直角坐标的基本原理、必要性以及实现的方法(即帧存贮器及其控制系统),对有关电路进行了分析,并对数字扫描变换处理装置所具有的功能进行了简要叙述。
This article introduces the real-time frame storage technology in the multifunctional B-mode ultrasound diagnostic apparatus. The basic principle, necessity and realization method (ie frame memory and its control system) of converting the polar coordinates of each pixel of the fan-shaped ultrasonic tomography image into rectangular coordinates are mainly discussed. The circuits involved are analyzed and the digital scanning The functions of the conversion processing apparatus are briefly described.