新型数字扫描转换及折射引起的图象失真的实时校正系统

A digital sean converter with real-time correction of distortion 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象失真。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象失真进行校正,也可校正其它因素引起的图象的几何失真,还可作为普通型DSC使用。

A new type of digital scan conversion(DSC)system 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 geometric(RG)distortion and the new DSC system can correct the RG distortion or other geometric distortions of B-mode imaging. It can be used either in the B-mode ima- ging system or in the B-mode imaging system with the refractional device.