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    • 7. 发明授权
    • Ultrasound diagnosis apparatus, image processing apparatus, and image processing method
    • 超声诊断装置,图像处理装置和图像处理方法
    • US09433399B2
    • 2016-09-06
    • US14078696
    • 2013-11-13
    • Toshiba Medical Systems Corporation
    • Takuya SasakiRyota Osumi
    • A61B8/00A61B8/08A61B5/12G01S7/52A61B6/00
    • A61B8/5223A61B5/125A61B5/725A61B6/5205A61B8/00A61B8/5207A61B8/5269G01S7/52077
    • An ultrasound diagnosis apparatus according to an embodiment includes a decomposing unit, a diffusion filter unit, an adjusting unit, and a reconstructing unit. The decomposing unit decomposes ultrasound image data into low-frequency and high-frequency decomposed image data at each of a predetermined number of levels, by a multi-resolution analysis. The diffusion filter unit applies a diffusion filter to the low-frequency and high-frequency decomposed image data at the lowest level and applies, at each of the levels other than the lowest, a diffusion filter to data output from the level immediately underneath and to the high-frequency decomposed image data, and also generates edge information for each of the levels. The adjusting unit adjusts a signal level of the high-frequency decomposed image data for each of the levels, based on the edge information. The reconstructing unit obtains corrected data of the ultrasound image data by performing a multi-resolution synthesis.
    • 根据实施例的超声波诊断装置包括分解单元,扩散滤波器单元,调整单元和重建单元。 分解单元通过多分辨率分析将超声图像数据分解成预定数量级中的每一个的低频和高频分解图像数据。 扩散滤波器单元对最低级别的低频和高频分解图像数据应用扩散滤波器,并将扩散滤波器的最低级以外的其他级别的扩散滤波器应用于从紧下方的级别输出的数据, 高频分解图像数据,并且还为每个级别生成边缘信息。 调整单元基于边缘信息调整各级的高频分解图像数据的信号电平。 重建单元通过执行多分辨率合成来获得超声图像数据的校正数据。