公开(公告)号：US20140029768A1

公开(公告)日：2014-01-30

申请号：US13930728

申请日：2013-06-28

申请人： Ng Woo Hong ,  Yiqun Hu ,  Ider Cheng

发明人： Ng Woo Hong ,  Yiqun Hu ,  Ider Cheng

IPC分类号： G10L19/018

CPC分类号： G10L19/018

摘要： Systems and methods for data communication using audio patterns are described. The methods include encoding a message into an audio pattern, mixing the audio pattern with an audio content to obtain a mixed audio content, wherein the audio pattern is inaudible in the mixed audio content, and transmitting the mixed audio content.

摘要翻译： 描述使用音频模式进行数据通信的系统和方法。 所述方法包括将消息编码成音频模式，将音频模式与音频内容混合以获得混合音频内容，其中音频模式在混合音频内容中听不到，并且发送混合音频内容。

公开(公告)号：US08295651B2

公开(公告)日：2012-10-23

申请号：US12236462

申请日：2008-09-23

申请人： Yiqun Hu ,  Xing Xie

发明人： Yiqun Hu ,  Xing Xie

IPC分类号： G06K9/54

CPC分类号： G06K9/4671

摘要： A coherent phrase model for near-duplicate image retrieval enforces coherency across multiple descriptors for every local region. Two types of visual phrase (FCP and SCP) are employed to represent feature and spatial coherency and can be utilized without increasing the computational complexity. The FCP utilizes the information of different features by enforcing the feature coherency across multiple types of descriptors for every local region, and the SCP utilizes spatial information by enforcing the spatial coherency across the spatial neighborhoods of different sizes around every local region. Moreover, the disclosed model improves the matching accuracy by reducing the number of false matches and preserves the matching efficiency because of the sparsity of the representation.

摘要翻译： 用于近似重复图像检索的连贯短语模型对于每个局部区域在多个描述符之间执行一致性。 采用两种类型的视觉短语（FCP和SCP）来表示特征和空间相关性，可以在不增加计算复杂度的情况下使用。 FCP利用不同特征的信息，通过对每个局部区域实施跨多种描述符的特征相干性，并且SCP通过在每个局部区域周围的不同大小的空间邻域执行空间相干性来利用空间信息。 此外，所公开的模型通过减少假匹配的数量并且由于表示的稀疏性而保持匹配效率来提高匹配精度。

公开(公告)号：US20100074528A1

公开(公告)日：2010-03-25

申请号：US12236462

申请日：2008-09-23

申请人： Yiqun Hu ,  Xing Xie

发明人： Yiqun Hu ,  Xing Xie

IPC分类号： G06K9/46

CPC分类号： G06K9/4671

摘要： A coherent phrase model for near-duplicate image retrieval enforces coherency across multiple descriptors for every local region. Two types of visual phrase (FCP and SCP) are employed to represent feature and spatial coherency and can be utilized without increasing the computational complexity. The FCP utilizes the information of different features by enforcing the feature coherency across multiple types of descriptors for every local region, and the SCP utilizes spatial information by enforcing the spatial coherency across the spatial neighborhoods of different sizes around every local region. Moreover, the disclosed model improves the matching accuracy by reducing the number of false matches and preserves the matching efficiency because of the sparsity of the representation.

摘要翻译： 用于近似重复图像检索的连贯短语模型对于每个局部区域在多个描述符之间执行一致性。 采用两种类型的视觉短语（FCP和SCP）来表示特征和空间相关性，可以在不增加计算复杂度的情况下使用。 FCP利用不同特征的信息，通过对每个局部区域实施跨多种描述符的特征相干性，并且SCP通过在每个局部区域周围的不同大小的空间邻域执行空间相干性来利用空间信息。 此外，所公开的模型通过减少假匹配的数量并且由于表示的稀疏性而保持匹配效率来提高匹配精度。

公开(公告)号：US06492636B1

公开(公告)日：2002-12-10

申请号：US09463008

申请日：2000-01-19

申请人： Shiping Chen ,  Yiqun Hu

发明人： Shiping Chen ,  Yiqun Hu

IPC分类号： G01N380

CPC分类号： G02B6/022 ,  G01B11/16 ,  G01D5/35383 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/1895 ,  G02B6/0218

摘要： A digital spatial and wavelength domain system for multiplexing fiber Bragg grating sensors comprises: a plurality of optical fibers, each including a plurality of fiber Bragg gratings therein, each fiber Bragg grating having a selective center wavelength that is variable in accordance with strain for reflecting or transmitting light at the corresponding center wavelength in accordance with the strain thereat; means for providing broad band illumination (110) for the fiber Bragg gratings; means for each optical fiber for carrying the light to a selected location; and a wavelength dispersion device (136) responsive to the light from each of the fibers for wavelength separating the light in each fiber into the center wavelengths in accordance with the location of each fiber so that the selected location of each fiber and the wavelength separated light provides spatially independent signals for each fiber Bragg grating in each optical fiber.

摘要翻译： 用于复用光纤布喇格光栅传感器的数字空间和波长域系统包括：多个光纤，每个光纤中包括多个光纤布拉格光栅，每个光纤布拉格光栅具有根据应变可变的选择性中心波长，用于反射或 在相应的中心波长处发射光; 用于为光纤布拉格光栅提供宽带照明（110）的装置; 用于将光传送到选定位置的每个光纤的装置; 以及响应于来自每个光纤的光的波长分散装置（136），用于根据每个光纤的位置将每个光纤中的光波长分离成中心波长，使得每个光纤的选定位置和波长分离的光 为每个光纤中的每个光纤布拉格光栅提供空间独立的信号。