公开(公告)号：US20130066584A1

公开(公告)日：2013-03-14

申请号：US13698823

申请日：2012-04-03

申请人： Li Lan ,  Shu Feng Fan ,  Kok Seng Chong ,  Anh Tuan Tran ,  Satoshi Kondo

发明人： Li Lan ,  Shu Feng Fan ,  Kok Seng Chong ,  Anh Tuan Tran ,  Satoshi Kondo

IPC分类号： G01K11/22 ,  G06F15/00

CPC分类号： A61N7/02 ,  A61B5/01 ,  A61B8/485 ,  A61B8/5223 ,  A61B2017/00084 ,  A61B2017/00106 ,  A61B2018/00791 ,  G01S7/52036 ,  G01S7/52042

摘要： A temperature estimation method including: receiving a scan signal generated by scanning the target region using the ultrasound signal, and estimating, based on the scan signal, an echo shift which is an amount of change in time required for the ultrasound signal to pass through the target region, the time changing depending on the temperature in the target region; estimating, based on the estimated echo shift, a strain which is an apparent change rate of a travel distance required for the ultrasound signal to pass through the target region, the travel distance changing depending on the temperature in the target region; estimating, based on the estimated strain, a strain rate which is a temporal change rate of the strain; and estimating the temperature in the target region corresponding to the strain and the strain rate, based on a predetermined relationship between a strain, a strain rate, and a temperature.

摘要翻译： 一种温度估计方法，包括：使用所述超声波信号接收通过扫描所述目标区域而产生的扫描信号，以及基于所述扫描信号，估计所述超声波信号通过所述扫描信号所需的时间变化量的回波偏移 目标区域，时间根据目标区域的温度而变化; 基于估计的回波偏移估计作为超声信号通过目标区域所需的行驶距离的明显变化率的应变，行驶距离根据目标区域中的温度而变化; 基于估计的应变估计作为应变的时间变化率的应变率; 并且基于应变，应变速率和温度之间的预定关系，估计对应于应变和应变速率的目标区域中的温度。

公开(公告)号：US20120002506A1

公开(公告)日：2012-01-05

申请号：US13256642

申请日：2011-01-19

申请人： Anh Tuan Tran ,  Kok Seng Chong ,  Shu Feng Fan

发明人： Anh Tuan Tran ,  Kok Seng Chong ,  Shu Feng Fan

IPC分类号： G01S15/08

CPC分类号： G01N29/0645 ,  A61B8/08 ,  A61B8/4245 ,  A61B8/52 ,  G01N29/225 ,  G01N29/4454 ,  G01N29/50 ,  G01N2291/044 ,  G01S7/52038 ,  G01S7/52042 ,  G01S15/8977

摘要： Disclosed is a displacement estimating method of iteratively estimating displacement using ultrasound signals, and the method includes: transmitting, to a medium, at least one of the ultrasound signals to scan the medium; receiving the ultrasound signal reflected from the scanned medium; calculating a size of a window; calculating a border of the window based on the calculated window size; estimating displacement for each depth of the ultrasound signal, using the window with the calculated border; warping the ultrasound signal based on the estimated displacement; and guiding convergence of the method using the warped ultrasound signal so that a correlation value of the ultrasound signal is larger.

摘要翻译： 公开了一种使用超声信号迭代地估计位移的位移估计方法，并且该方法包括：向介质发送至少一个超声信号以扫描介质; 接收从扫描介质反射的超声信号; 计算窗口的大小; 基于计算的窗口大小计算窗口的边界; 使用具有计算边界的窗口来估计超声信号的每个深度的位移; 基于估计的位移扭曲超声信号; 并引导使用翘曲超声信号的方法的收敛，使得超声信号的相关值较大。

公开(公告)号：US20120136255A1

公开(公告)日：2012-05-31

申请号：US13388561

申请日：2011-06-03

申请人： Shu Feng Fan ,  Anh Tuan Tran ,  Kok Seng Chong

发明人： Shu Feng Fan ,  Anh Tuan Tran ,  Kok Seng Chong

IPC分类号： A61B8/08

CPC分类号： A61B8/0833 ,  A61B8/02 ,  A61B8/485 ,  A61B8/5269

摘要： To detect a malignant tumor more accurately by detecting a feature of a cancerous tumor pulsation more appropriately, a tissue malignant tumor detection method according to the present invention includes: segmenting, into blocks, a region scanned with ultrasound (S100); estimating, based on a scan signal, a tissue pulsation that is a temporal variation in tissue displacement derived from pulsations of a tissue (S101); extracting, for each of the blocks, pulsation-related features that are parameters related to the tissue pulsation (S103); calculating distribution characteristics of the pulsation-related features for each of the blocks (S104); and classifying, based on the distribution characteristics, whether or not each of the blocks is a malignant block that is a block including the malignant tumor (S105).

摘要翻译： 为了更准确地检测恶性肿瘤的肿瘤特征，可以更精确地检测恶性肿瘤，根据本发明的组织恶性肿瘤检测方法包括：将超声波扫描的区域分割成块（S100）; 基于扫描信号估计作为从组织的脉动导出的组织位移的时间变化的组织脉动（S101）; 针对每个块提取与组织脉动相关的参数的脉动相关特征（S103）; 计算每个块的脉动相关特征的分布特性（S104）; 并根据分布特征分类每个块是否是包括恶性肿瘤的块的恶性区段（S105）。

公开(公告)号：US08675450B2

公开(公告)日：2014-03-18

申请号：US13256642

申请日：2011-01-19

申请人： Anh Tuan Tran ,  Kok Seng Chong ,  Shu Feng Fan

发明人： Anh Tuan Tran ,  Kok Seng Chong ,  Shu Feng Fan

IPC分类号： G01S15/00 ,  G06K9/00

CPC分类号： G01N29/0645 ,  A61B8/08 ,  A61B8/4245 ,  A61B8/52 ,  G01N29/225 ,  G01N29/4454 ,  G01N29/50 ,  G01N2291/044 ,  G01S7/52038 ,  G01S7/52042 ,  G01S15/8977

摘要： Disclosed is a displacement estimating method of iteratively estimating displacement using ultrasound signals, and the method includes: transmitting, to a medium, at least one of the ultrasound signals to scan the medium; receiving the ultrasound signal reflected from the scanned medium; calculating a size of a window; calculating a border of the window based on the calculated window size; estimating displacement for each depth of the ultrasound signal, using the window with the calculated border; warping the ultrasound signal based on the estimated displacement; and guiding convergence of the method using the warped ultrasound signal so that a correlation value of the ultrasound signal is larger.

摘要翻译： 公开了一种使用超声信号迭代地估计位移的位移估计方法，并且该方法包括：向介质发送至少一个超声信号以扫描介质; 接收从扫描介质反射的超声信号; 计算窗口的大小; 基于计算的窗口大小计算窗口的边界; 使用具有计算边界的窗口来估计超声信号的每个深度的位移; 基于估计的位移扭曲超声信号; 并引导使用翘曲超声信号的方法的收敛，使得超声信号的相关值较大。

公开(公告)号：US09093080B2

公开(公告)日：2015-07-28

申请号：US13389276

申请日：2011-06-06

申请人： Tomokazu Ishikawa ,  Takeshi Norimatsu ,  Huan Zhou ,  Kok Seng Chong ,  Haishan Zhong

发明人： Tomokazu Ishikawa ,  Takeshi Norimatsu ,  Huan Zhou ,  Kok Seng Chong ,  Haishan Zhong

IPC分类号： G10L19/00 ,  G10L21/038 ,  G10L21/04

CPC分类号： G10L19/02 ,  G10L21/038 ,  G10L21/04

摘要： To provide a bandwidth extension method which allows reduction of computation amount in bandwidth extension and suppression of deterioration of quality in the bandwidth to be extended. In the bandwidth extension method: a low frequency bandwidth signal is transformed into a QMF domain to generate a first low frequency QMF spectrum; pitch-shifted signals are generated by applying different shifting factors on the low frequency bandwidth signal; a high frequency QMF spectrum is generated by time-stretching the pitch-shifted signals in the QMF domain; the high frequency QMF spectrum is modified; and the modified high frequency QMF spectrum is combined with the first low frequency QMF spectrum.

摘要翻译： 提供一种允许减少带宽扩展中的计算量并抑制要扩展的带宽中的质量劣化的带宽扩展方法。 在带宽扩展方法中：将低频带宽信号变换成QMF域以产生第一低频QMF频谱; 通过在低频带宽信号上应用不同的移位因子来生成音调移位信号; 通过对QMF域中的音调移位信号进行时间扩展来产生高频QMF频谱; 改变高频QMF频谱; 并且修改的高频QMF频谱与第一低频QMF频谱组合。

公开(公告)号：US20130173275A1

公开(公告)日：2013-07-04

申请号：US13822810

申请日：2011-09-14

申请人： Zongxian Liu ,  Kok Seng Chong ,  Masahiro Oshikiri

发明人： Zongxian Liu ,  Kok Seng Chong ,  Masahiro Oshikiri

IPC分类号： G10L19/06

CPC分类号： G10L19/06 ,  G10L19/0212 ,  G10L19/24

摘要： Provided is an audio encoding device that can suppress degradation of audio quality. Spectral coefficients of synthesized signal from CELP core layer are utilized to fulfill spectral gaps in error signal spectrum coefficients from a transform coding layer. By both spectral coefficients, decoded signal spectral coefficients are generated. The decoded signal spectral coefficients and the input signal spectral coefficients are divided into a plurality of sub bands. In each sub band, the energy of the input signal spectral coefficient corresponding to a zero decoded error signal spectral coefficient is calculated, and the energy of the decoded signal spectral coefficient corresponding to the zero decoding error signal spectral coefficient is calculated, and their energy ratio is calculated and is quantized and transmitted.

摘要翻译： 提供了可以抑制音频质量劣化的音频编码装置。 利用来自CELP核心层的合成信号的频谱系数来实现来自变换编码层的误差信号频谱系数中的频谱间隙。 通过两个频谱系数，生成解码信号频谱系数。 解码信号频谱系数和输入信号频谱系数被分成多个子频带。 在每个子带中，计算与零解码误差信号频谱系数相对应的输入信号频谱系数的能量，并且计算与零解码误差信号频谱系数对应的解码信号频谱系数的能量，并且其能量比 被计算并被量化和传输。

公开(公告)号：US20120136670A1

公开(公告)日：2012-05-31

申请号：US13389276

申请日：2011-06-06

申请人： Tomokazu Ishikawa ,  Takeshi Norimatsu ,  Huan Zhou ,  Kok Seng Chong ,  Haishan Zhong

发明人： Tomokazu Ishikawa ,  Takeshi Norimatsu ,  Huan Zhou ,  Kok Seng Chong ,  Haishan Zhong

IPC分类号： G10L19/00

CPC分类号： G10L19/02 ,  G10L21/038 ,  G10L21/04

摘要： To provide a bandwidth extension method which allows reduction of computation amount in bandwidth extension and suppression of deterioration of quality in the bandwidth to be extended. In the bandwidth extension method: a low frequency bandwidth signal is transformed into a QMF domain to generate a first low frequency QMF spectrum; pitch-shifted signals are generated by applying different shifting factors on the low frequency bandwidth signal; a high frequency QMF spectrum is generated by time-stretching the pitch-shifted signals in the QMF domain; the high frequency QMF spectrum is modified; and the modified high frequency QMF spectrum is combined with the first low frequency QMF spectrum.

摘要翻译： 提供一种允许减少带宽扩展中的计算量并抑制要扩展的带宽中的质量劣化的带宽扩展方法。 在带宽扩展方法中：将低频带宽信号变换成QMF域以产生第一低频QMF频谱; 通过在低频带宽信号上应用不同的移位因子来生成音调移位信号; 通过对QMF域中的音调移位信号进行时间扩展来产生高频QMF频谱; 改变高频QMF频谱; 并且修改的高频QMF频谱与第一低频QMF频谱组合。

公开(公告)号：US20120022676A1

公开(公告)日：2012-01-26

申请号：US13256055

申请日：2010-10-19

申请人： Tomokazu Ishikawa ,  Takeshi Norimatsu ,  Kok Seng Chong ,  Huan Zhou ,  Haishan Zhong

发明人： Tomokazu Ishikawa ,  Takeshi Norimatsu ,  Kok Seng Chong ,  Huan Zhou ,  Haishan Zhong

IPC分类号： G06F17/00

CPC分类号： G10L21/04 ,  G10L21/0388

摘要： To provide an audio signal processing apparatus which can perform, with low operation amount, audio signal processing that is either time stretch and/or compression processing or frequency modulation processing. The audio signal processing apparatus is intended to transform an input audio signal sequence using a predetermined adjustment factor. The audio signal processing apparatus includes a filter bank (2601) which transforms the input audio signal sequence into Quadrature Mirror Filter (QMF) coefficients using a filter for Quadrature Mirror Filter analysis (a QMF analysis filter) and an adjusting unit (2602) which adjusts the QMF coefficients based on a predetermined adjustment factor.

摘要翻译： 提供一种音频信号处理装置，其可以以低操作量执行时间延伸和/或压缩处理或频率调制处理的音频信号处理。 音频信号处理装置旨在使用预定的调节因子来变换输入音频信号序列。 音频信号处理装置包括滤波器组（2601），其使用用于正交镜滤波器分析的滤波器（QMF分析滤波器）和调整单元（2602）将输入音频信号序列变换为正交镜像滤波器（QMF）系数，调整单元（2602） 基于预定调整因子的QMF系数。

公开(公告)号：US08019614B2

公开(公告)日：2011-09-13

申请号：US12065378

申请日：2006-08-31

申请人： Yoshiaki Takagi ,  Kok Seng Chong ,  Takeshi Norimatsu ,  Shuji Miyasaka ,  Akihisa Kawamura ,  Kojiro Ono ,  Tomokazu Ishikawa

发明人： Yoshiaki Takagi ,  Kok Seng Chong ,  Takeshi Norimatsu ,  Shuji Miyasaka ,  Akihisa Kawamura ,  Kojiro Ono ,  Tomokazu Ishikawa

IPC分类号： G10L19/00

CPC分类号： G10L19/26 ,  G10L19/008 ,  G10L19/0204 ,  H04S2420/03

摘要： A temporal processing apparatus includes: a splitter splitting an audio signal, included in the sub-band domain, into diffuse signals indicating reverberating components and direct signals indicating non-reverberating components; a downmix unit generating a downmix signal by downmixing the direct signals; BPFs respectively generating a bandpass downmix signal and bandpass diffuse signals; normalization processing units respectively generating a normalized downmix signal and normalized diffuse signals; a scale computation processing unit computing, on a predetermined time slot basis, a scale factor indicating the magnitude of energy of the normalized downmix signal with respect to energy of the normalized diffuse signals; a calculating unit generating scale diffuse signals; a HPF generating high-pass diffuse signals; an adding unit generating addition signals; and a synthesis filter bank performing synthesis filter processing on the addition signals and transforming the addition signals into the time domains.

摘要翻译： 时间处理装置包括：分离器，将包括在子带域中的音频信号分成指示混响分量的漫射信号和指示非混响分量的直接信号; 下混合单元，通过使直接信号下混合来产生降混信号; BPF分别产生带通下混信号和带通漫射信号; 归一化处理单元，分别产生归一化的下混信号和归一化扩散信号; 比例计算处理单元在预定时隙的基础上计算指示归一化的下混信号相对于归一化扩散信号的能量的能量的大小的比例因子; 计算单元，生成缩放漫射信号; HPF产生高通漫反射信号; 添加单元生成附加信号; 以及合成滤波器组，对加法信号执行合成滤波处理，并将加法信号转换成时域。

公开(公告)号：US20100121633A1

公开(公告)日：2010-05-13

申请号：US12596489

申请日：2008-04-18

申请人： Kok Seng Chong

发明人： Kok Seng Chong

IPC分类号： G10L19/00

CPC分类号： G10L19/008

摘要： Provided is a stereo audio encoding device which can improve ICP accuracy of a stereo audio signal having a low inter-channel correlation while suppressing a bit rate. The device (100) includes: a monaural signal generation unit (101) which generates an average value of a left channel signal L and a right channel signal R as a monaural signal M; an adaptive synthesis unit (103) which generates a synthesis signal L2 of the left channel signal L and the right channel signal R by using a synthesis ratio a inputted from a synthesis ratio adjusting unit (105); LPC analysis units (102, 104) which perform LPC analysis on the monaural signal M and the synthesis signal L2 so as to generate linear prediction residual signals Me, L2e, respectively; a synthesis ratio adjusting unit (105) which firstly initializes the synthesis ratio a to 1.0 and then reduces the synthesis ratio a until the correlation value between the linear prediction residual signal L2e and Me reaches a predetermined value; and an ICP analysis unit (106) which performs ICP analysis by using Me and L2e.

摘要翻译： 提供了一种立体声音频编码装置，其可以在抑制比特率的同时提高具有低信道间相关性的立体声音频信号的ICP精度。 设备（100）包括：单声道信号生成单元（101），其生成左声道信号L和右声道信号R的平均值作为单声道信号M; 自适应合成单元，通过使用从合成比率调整单元输入的合成比α，生成左声道信号L和右声道信号R的合成信号L2; 对单声道信号M和合成信号L2进行LPC分析的LPC分析单元（102,104），分别生成线性预测残差信号Me，L2e; 合成比率调整单元（105），其首先将合成比a初始化为1.0，然后降低合成比率a，直到线性预测残差信号L2e和Me之间的相关值达到预定值; 以及通过使用Me和L2e进行ICP分析的ICP分析单元（106）。