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    • 1. 发明申请
    • Ultrasound diagnostic system for automatically detecting a boundary of a target object and method of using the same
    • 用于自动检测目标物体边界的超声诊断系统及其使用方法
    • US20060173317A1
    • 2006-08-03
    • US11274330
    • 2005-11-16
    • Ki LeeHye Kim
    • Ki LeeHye Kim
    • A61B8/00
    • A61B8/08A61B8/0883G06T5/20G06T7/12G06T2207/10132G06T2207/30048
    • A method and a system of automatically detecting a boundary of a target object by using an ultrasound diagnostic image. In accordance with the present invention, the boundary of the target object can be detected automatically and precisely. The ultrasound diagnostic method and system form an edge detection boundary candidate model by detecting an edge of the ultrasound diagnostic image, forming a simplification boundary candidate model by performing a simplification operation to the edge detection boundary candidate model, forming a sessionization boundary candidate model by performing a sessionization operation to the simplification boundary candidate model, and detecting the boundary of the target object of the ultrasound diagnostic image based on the edge detection boundary candidate model, the simplification boundary candidate model and the sessionization boundary candidate model. In accordance with the present invention, the boundary of the target object is automatically detected by using the ultrasound diagnostic image to reduce any inconvenience to the user and solve the problem in which the measured result may vary with each user, which was caused by a conventional method of manually detecting the boundary.
    • 一种通过使用超声诊断图像自动检测目标对象的边界的方法和系统。 根据本发明,可以自动且精确地检测目标物体的边界。 超声诊断方法和系统通过检测超声诊断图像的边缘形成边缘检测边界候选模型,通过对边缘检测边界候选模型执行简化操作形成简化边界候选模型,通过执行会话化边界候选模型 简化边界候选模型的会话化操作,以及基于边缘检测边界候选模型,简化边界候选模型和会话边界候选模型来检测超声诊断图像的目标对象的边界。 根据本发明,通过使用超声诊断图像来自动检测目标对象的边界,以减少对用户的不便,并解决测量结果可能随着每个用户而变化的问题,这是由常规的 手动检测边界的方法。
    • 2. 发明申请
    • Apparatus and method for processing an ultrasound spectrum image
    • 用于处理超声波光谱图像的装置和方法
    • US20070016073A1
    • 2007-01-18
    • US11413157
    • 2006-04-28
    • Hye KimKi LeeSung KimEun YangCheol Kim
    • Hye KimKi LeeSung KimEun YangCheol Kim
    • A61B6/00
    • G01S7/52077A61B8/06G01S7/52026G01S15/584G01S15/8979G06K9/0055
    • There is provided a method of processing an ultrasound spectrum image. According to such method, a spectrum image is formed based on ultrasound data and then the noise is removed from the spectrum image. The noise-removed spectrum image is matched with one or more spectrum models representing specific spectrum types. Then, whether or not the noise-removed spectrum image contains an aliasing is checked. If the noise-removed spectrum image contains the aliasing, then the aliasing is removed from the noise-removed spectrum image to provide a noise-removed spectrum image without the aliasing. Thereafter, contour tracing is performed on the noise-removed spectrum image without the aliasing to detect contour points. Further, peak tracing is performed on the noise-removed spectrum image without the aliasing to detect peaks.
    • 提供了一种处理超声波频谱图像的方法。 根据这种方法,基于超声数据形成频谱图像,然后从频谱图像中去除噪声。 噪声消除的光谱图像与表示特定光谱类型的一个或多个光谱模型相匹配。 然后,检查噪声去除的频谱图像是否包含混叠。 如果噪声去除的频谱图像包含混叠,则从去除噪声的频谱图像中去除混叠,以提供没有混叠的噪声去除的频谱图像。 此后,对噪声去除的频谱图像执行轮廓跟踪,而不需要混叠来检测轮廓点。 此外,在没有混叠的噪声去除的频谱图像上执行峰值跟踪以检测峰值。
    • 9. 发明申请
    • Speech restoration system and method for concealing packet losses
    • 用于隐藏分组丢失的语音恢复系统和方法
    • US20050010401A1
    • 2005-01-13
    • US10615268
    • 2003-07-07
    • Ho SungDae HwangMoon LeeKi LeeYoung ParkDae Youn
    • Ho SungDae HwangMoon LeeKi LeeYoung ParkDae Youn
    • G10L11/06G10L19/00G10L19/04
    • G10L19/005G10L19/04G10L25/93
    • Provided are a speech restoration system and method for concealing packet losses. The system includes a demultiplexer that demultiplexes an input bit stream and divides the input bit stream into several packets; a packet loss concealing unit that produces and outputs a linear spectrum pair (LSP) coefficient representing the vocal tract of voice and an excitation signal corresponding to a lost frame, when a packet loss occurs; and a speech restoring unit that synthesizes voice using the packets input from the demultiplexer, outputs the result as restored voice, and synthesizes voice corresponding to a lost packet using the LSP coefficient and the excitation signal input from the packet loss concealing unit and outputs the result as restored voice when the lost packet is detected, wherein the packet loss concealing unit repeats linear prediction coefficients (LPCs) of a last-received valid frame, produces a first excitation signal for the lost frame using a time scale modification (TSM) method, when the lost frame is voiceless, and produces a second excitation signal by re-estimating a gain parameter based on the first excitation signal, when the lost frame is voiced.
    • 提供了一种用于隐藏分组丢失的语音恢复系统和方法。 该系统包括解复用器,其对输入比特流进行解复用并将输入比特流分成若干分组; 分组丢失隐藏单元,当发生分组丢失时,产生并输出表示语音的声道的线性频谱对(LSP)系数和对应于丢失帧的激励信号; 以及语音恢复单元,其使用从解复用器输入的分组合成语音,将结果输出为恢复的语音,并且使用从分组丢失隐藏单元输入的LSP系数和激励信号来合成与丢失分组对应的语音,并输出结果 作为在检测到丢失分组时的恢复语音,其中分组丢失隐藏单元重复最后接收的有效帧的线性预测系数(LPC),使用时间缩放修改(TSM)方法产生丢失帧的第一激励信号, 当丢失的帧是无声的,并且当丢失的帧被发音时,通过基于第一激励信号重新估计增益参数来产生第二激励信号。