新型数字扫描转换及折射引起的图像失真的实时校正系统

A digital Scan Converter with Real-Time Correction ofDistortion Caused by Refraction in B-mode Imaging

B超的折射装置在扩大B超诊断范围的同时,引起了图像的失真,本文描述的新型数字扫描转换器(DSC)可在完成数字扫描转换的同时对折射引起的图像失真进行校正,也可较正其它因素引起的图像的几何失真,还可作为普通型DSC使用。

A new type of digital scan conversion (DSC) systen is described in this paper. This system is designed for the refractional device which is used for enlarging the diagnosis range of B-mode imaging. The device will cause the refractional geometriec(RG) distortion and the new DSC system can correct the RG distortion or other geometric distortio ns of B-mode imaging It can be used either in the B-mode imaging system or in the B-mode imaging system with the refractional device.