And then by the curvefitting algorithm, the gray-time curve of image and gray peak value, the time of peak value, area of image have been gotten.

• 本系统通过对超声图象进行连续采集以后,对每帧图象的相关区域进行亮度及灰度统计,得出各对应区域的灰度变化曲线,再运用曲线拟合方法对各帧图象的灰度变化作出灰度。