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公开(公告)号:US08503714B2
公开(公告)日:2013-08-06
申请号:US13107356
申请日:2011-05-13
申请人: Sang Shik Park , Dong Kuk Shin , Dong Ki Ahn , Mok Kun Jeong
发明人: Sang Shik Park , Dong Kuk Shin , Dong Ki Ahn , Mok Kun Jeong
IPC分类号: G06K9/00
CPC分类号: A61B8/485 , G06T5/50 , G06T7/0016 , G06T2207/10132 , G06T2207/20216 , G06T2207/30068
摘要: Embodiments for correcting a dropout in a strain image in an ultrasound system are disclosed. In one embodiment, a processing unit sets a first window on each of pre-compression ultrasound frame data and post-compression second ultrasound frame data, move the first window in a predetermined direction and compute a correlation between the pre-compression ultrasound frame data and the post-compression ultrasound frame data within the first window to obtain a displacement corresponding to a value of each pixel of target ultrasound frame data. The processing unit sets one of pixels of the target ultrasound frame data as a reference pixel, sets a second window to encompass predetermined numbers of pixels positioned around the reference pixel, checks whether a displacement computation error corresponding to a dropout occur based on the pixel values within the second window and resets, when the dropout occurs, the value of the reference pixel.
摘要翻译: 公开了用于校正超声系统中的应变图像的压差的实施例。 在一个实施例中,处理单元在预压缩超声帧数据和后压缩第二超声帧数据中的每一个上设置第一窗口,沿预定方向移动第一窗口,并计算预压缩超声帧数据与 在第一窗口内的压缩后超声帧数据,以获得对应于目标超声帧数据的每个像素的值的位移。 处理单元将目标超声波帧数据的像素之一设置为参考像素,设置第二窗口以包围位于参考像素周围的预定数量的像素,基于像素值来检查是否发生与偏差相对应的位移计算误差 在第二个窗口内复位,当出现缺陷时,参考像素的值。