Non-contact measurement system and method
    1.
    发明授权
    Non-contact measurement system and method 失效
    非接触式测量系统及方法

    公开(公告)号:US07257248B2

    公开(公告)日:2007-08-14

    申请号:US10249279

    申请日:2003-03-27

    CPC classification number: G01B11/25 G06T7/521

    Abstract: A system and method for non-contact measurement of a complex part is provided. The method comprises acquiring an image of the complex part including imposed laser lines on the complex part using at least one imaging device, determining a span of interest of the complex part being representative of at least a portion of the complex part and which comprises information related to a plurality of dimensions of a surface of the complex part, extracting information corresponding to the laser lines from the span of interest to reduce computation and further extracting a plurality of unique points from the information corresponding to the laser lines, the plurality of unique points representing the plurality of dimensions of the surface. The plurality of unique points is used for reconstructing a three-dimensional (3D) representation of the surface of the complex part.

    Abstract translation: 提供了一种用于非接触式测量复杂部件的系统和方法。 该方法包括使用至少一个成像装置获取复合部分上包括施加的激光线的图像,确定复合部分的兴趣跨度代表复合部分的至少一部分,并且包括信息相关 到复合部分的表面的多个维度,从感兴趣的跨度提取与激光线对应的信息以减少计算,并且从与激光线对应的信息中进一步提取多个唯一点,多个唯一点 表示表面的多个尺寸。 多个独特的点被用于重建复杂部分的表面的三维(3D)表示。

    Method and apparatus for optical measurement of the leading edge position of an airfoil
    5.
    发明授权
    Method and apparatus for optical measurement of the leading edge position of an airfoil 有权
    用于光学测量翼型前缘位置的方法和装置

    公开(公告)号:US06876459B2

    公开(公告)日:2005-04-05

    申请号:US10063228

    申请日:2002-04-01

    CPC classification number: G01B11/028

    Abstract: Apparatus (10) for determining the leading edge (E) of an airfoil (A) includes a first light source (S1) illuminating a portion of the airfoil including its leading edge and a first camera (M1) acquiring an image of the illuminated portion of the airfoil. A second light source (S2), spaced apart from the first light source, also illuminates a portion of the airfoil including its leading edge. A second camera (M2) acquires an image of the portion of the airfoil illuminated by the second light source. The location (N2) of the second light source and the first camera are coincident in space as are the location (N1) of the first light source and the second camera. An image processor (P) processes the respective images obtained from the two cameras to locate the leading edge of the object. In doing so, the processor utilizes similarities in illumination of the airfoil by the respective light sources and occlusion boundaries of the respective illuminated portions of the airfoil.

    Abstract translation: 用于确定翼型(A)的前缘(E)的装置(10)包括照射包括其前缘的翼型的一部分的第一光源(S1)和获取被照射部分的图像的第一照相机(M1) 的翼型。 与第一光源间隔开的第二光源(S2)也照亮包括其前缘的翼型的一部分。 第二相机(M2)获取由第二光源照亮的翼型部分的图像。 第二光源和第一照相机的位置(N2)与第一光源和第二照相机的位置(N1)一样在空间中。 图像处理器(P)处理从两个相机获得的各个图像以定位对象的前沿。 在这样做时,处理器利用相应的光源照射翼型的相似性,以及翼型的相应照明部分的遮挡边界。

    CELP speech synthesizer with epoch-adaptive harmonic generator for pitch
harmonics below voicing cutoff frequency
    6.
    发明授权
    CELP speech synthesizer with epoch-adaptive harmonic generator for pitch harmonics below voicing cutoff frequency 失效
    CELP语音合成器,具有时代自适应谐波发生器,用于音调谐波低于浊音截止频率

    公开(公告)号:US06138092A

    公开(公告)日:2000-10-24

    申请号:US114661

    申请日:1998-07-13

    CPC classification number: G10L19/12

    Abstract: A speech coding system and associated method relies on a speech encoder (15) and a speech decoder (20). The speech decoder (20) includes an LPC synthesis filter (90), a Gaussian noise generator (80) for generating unvoiced excitation, an epoch-adaptive harmonic generator (70) for generating voiced excitation for pitch harmonics below voicing cutoff frequency, and an excitation summer (72) for summing the voiced and unvoiced excitation generated by the Gaussian noise generator (80) and the harmonic generator (70). The output of the excitation summer (72) is provided to the LPC synthesis filter (90) to generate synthesized speech. The system and method provides natural sounding synthesized speech at a low bit rate.

    Abstract translation: 语音编码系统和相关方法依赖于语音编码器(15)和语音解码器(20)。 语音解码器(20)包括LPC合成滤波器(90),用于产生无声激励的高斯噪声发生器(80),用于产生低于声音截止频率的音调谐波的有声激励的时代自适应谐波发生器(70) 用于对由高斯噪声发生器(80)和谐波发生器(70)产生的有声和无声激励求和的激励加法器(72)。 激励加法器(72)的输出被提供给LPC合成滤波器(90)以产生合成语音。 该系统和方法以低比特率提供自然发声合成语音。

    Speech coding system and method including harmonic generator having an
adaptive phase off-setter
    10.
    发明授权
    Speech coding system and method including harmonic generator having an adaptive phase off-setter 失效
    包括具有自适应相位偏移器的谐波发生器的语音编码系统和方法

    公开(公告)号:US6119082A

    公开(公告)日:2000-09-12

    申请号:US114663

    申请日:1998-07-13

    CPC classification number: G10L19/02 G10L25/12 G10L25/93

    Abstract: A speech coding system (10) and associated method rely on a speech encoder (15) and a speech decoder (20). The speech decoder (20) includes a Linear Predictive Coding (LPC) filter (90) having an input and an output. The LPC filter (90) provides synthesized speech at its output in response to voiced and unvoiced excitation provided at its input. A harmonic generator (70) for providing voiced excitation to the input of the LPC filter includes a pitch-related randomized adaptive phase off-setter. The adaptive phase off-setter off-sets the harmonic phases of the voiced excitation in accordance with the fundamental pitch frequency of respective frames of speech. The system and method thereby reduce perceived buzziness of synthesized speech provided at the output of the LPC filter.

    Abstract translation: 语音编码系统(10)和相关联的方法依赖于语音编码器(15)和语音解码器(20)。 语音解码器(20)包括具有输入和输出的线性预测编码(LPC)滤波器(90)。 LPC滤波器(90)响应于在其输入处提供的有声和无声激励而在其输出端提供合成语音。 用于向LPC滤波器的输入端提供有声激励的谐波发生器(70)包括音调相关的随机自适应相位偏移器。 自适应相位偏移器根据各个语音帧的基本音调频率来偏移有声激励的谐波相位。 该系统和方法从而减少了在LPC滤波器的输出处提供的合成语音的感知嗡嗡声。

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