公开(公告)号：US09197945B2

公开(公告)日：2015-11-24

申请号：US13547193

申请日：2012-07-12

申请人： Nate D'Amico ,  Vijay Chandrasekhar

发明人： Nate D'Amico ,  Vijay Chandrasekhar

IPC分类号： H04N7/16 ,  H04N21/8358 ,  H04H60/56 ,  H04N21/44 ,  G10H7/00 ,  G06F15/16

CPC分类号： H04N21/8358 ,  H04H60/56 ,  H04N21/44008

摘要： Systems and methods are provided for facilitating user and time-based content interaction. Sampling data received from a user device is compared to time-based content. The comparison is carried out, optionally without relying on watermark matching, to determine whether a match exists between the sampling data and the time-based content. Information relating to the sampling data may be transmitted to the user if the identification engine determines that the match exists.

摘要翻译： 提供了系统和方法，以便于用户和基于时间的内容交互。 将从用户设备接收的采样数据与基于时间的内容进行比较。 执行比较，可选地不依赖于水印匹配来确定采样数据和基于时间的内容之间是否存在匹配。 如果识别引擎确定匹配存在，则可以向用户发送与采样数据相关的信息。

公开(公告)号：US08687891B2

公开(公告)日：2014-04-01

申请号：US12949455

申请日：2010-11-18

申请人： Gabriel Takacs ,  Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Bernd Girod

发明人： Gabriel Takacs ,  Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Bernd Girod

IPC分类号： G06K9/46

CPC分类号： G06K9/4642 ,  G06K9/4671 ,  G06K9/527 ,  G06T7/246 ,  G06T2207/10016 ,  G06T2207/20164

摘要： Various methods for tracking and recognition with rotation invariant feature descriptors are provided. One example method includes generating an image pyramid of an image frame, detecting a plurality of interest points within the image pyramid, and extracting feature descriptors for each respective interest point. According to some example embodiments, the feature descriptors are rotation invariant. Further, the example method may also include tracking movement by matching the feature descriptors to feature descriptors of a previous frame and performing recognition of an object within the image frame based on the feature descriptors. Related example methods and example apparatuses are also provided.

摘要翻译： 提供了用于跟踪和识别旋转不变特征描述符的各种方法。 一种示例性方法包括生成图像帧的图像金字塔，检测图像金字塔内的多个兴趣点，以及针对各个兴趣点提取特征描述符。 根据一些示例实施例，特征描述符是旋转不变量。 此外，示例性方法还可以包括通过将特征描述符与先前帧的特征描述符进行匹配来跟踪移动，并且基于特征描述符执行图像帧内的对象的识别。 还提供了相关的示例性方法和示例设备。

公开(公告)号：US09710492B2

公开(公告)日：2017-07-18

申请号：US12617514

申请日：2009-11-12

申请人： Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Gabriel Takacs ,  Bernd Girod

发明人： Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Gabriel Takacs ,  Bernd Girod

IPC分类号： G06K9/46 ,  G06F17/30 ,  G06T9/20 ,  G06T9/40 ,  H04N19/96 ,  H04N19/14

CPC分类号： G06F17/30256 ,  G06K9/4642 ,  G06T9/20 ,  G06T9/40 ,  H04N19/14 ,  H04N19/96

摘要： A method, apparatus and computer program product may be provided for generating a plurality of compressed feature descriptors that can be represented by a relatively small number of bits, thereby facilitating transmission and storage of the feature descriptors. A method, apparatus and computer program product may also be provided for permitting a compressed representation of a feature descriptor to be compared with a plurality of compressed representations of feature descriptors of respective predefined features. By permitting the comparison to be performed utilizing compressed representations of feature descriptors, a respective feature descriptor may be identified without having to first decompress the feature descriptor, thereby potentially increasing the efficiency with which feature descriptors may be identified.

公开(公告)号：US20130018936A1

公开(公告)日：2013-01-17

申请号：US13547193

申请日：2012-07-12

申请人： Nate D'Amico ,  Vijay Chandrasekhar

发明人： Nate D'Amico ,  Vijay Chandrasekhar

IPC分类号： G06F15/16

CPC分类号： H04N21/8358 ,  H04H60/56 ,  H04N21/44008

摘要： Systems and methods are provided for facilitating user and time-based content interaction. Sampling data received from a user device is compared to time-based content. The comparison is carried out, optionally without relying on watermark matching, to determine whether a match exists between the sampling data and the time-based content. Information relating to the sampling data may be transmitted to the user if the identification engine determines that the match exists.

摘要翻译： 提供了系统和方法，以便于用户和基于时间的内容交互。 将从用户设备接收的采样数据与基于时间的内容进行比较。 执行比较，可选地不依赖于水印匹配来确定采样数据和基于时间的内容之间是否存在匹配。 如果识别引擎确定匹配存在，则可以向用户发送与采样数据相关的信息。

公开(公告)号：US20110286627A1

公开(公告)日：2011-11-24

申请号：US12949455

申请日：2010-11-18

申请人： Gabriel Takacs ,  Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Bernd Girod

发明人： Gabriel Takacs ,  Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Bernd Girod

IPC分类号： G06K9/46

CPC分类号： G06K9/4642 ,  G06K9/4671 ,  G06K9/527 ,  G06T7/246 ,  G06T2207/10016 ,  G06T2207/20164

摘要： Various methods for tracking and recognition with rotation invariant feature descriptors are provided. One example method includes generating an image pyramid of an image frame, detecting a plurality of interest points within the image pyramid, and extracting feature descriptors for each respective interest point. According to some example embodiments, the feature descriptors are rotation invariant. Further, the example method may also include tracking movement by matching the feature descriptors to feature descriptors of a previous frame and performing recognition of an object within the image frame based on the feature descriptors. Related example methods and example apparatuses are also provided.

摘要翻译： 提供了用于跟踪和识别旋转不变特征描述符的各种方法。 一种示例性方法包括生成图像帧的图像金字塔，检测图像金字塔内的多个兴趣点，以及针对各个兴趣点提取特征描述符。 根据一些示例实施例，特征描述符是旋转不变量。 此外，示例性方法还可以包括通过将特征描述符与先前帧的特征描述符进行匹配来跟踪移动，并且基于特征描述符执行图像帧内的对象的识别。 还提供了相关的示例性方法和示例设备。

公开(公告)号：US20100226575A1

公开(公告)日：2010-09-09

申请号：US12617514

申请日：2009-11-12

申请人： Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Gabriel Takacs ,  Bernd Girod

发明人： Radek Grzeszczuk ,  Vijay Chandrasekhar ,  Gabriel Takacs ,  Bernd Girod

IPC分类号： G06K9/46

CPC分类号： G06F17/30256 ,  G06K9/4642 ,  G06T9/20 ,  G06T9/40 ,  H04N19/14 ,  H04N19/96

摘要： A method, apparatus and computer program product may be provided for generating a plurality of compressed feature descriptors that can be represented by a relatively small number of bits, thereby facilitating transmission and storage of the feature descriptors. A method, apparatus and computer program product may also be provided for permitting a compressed representation of a feature descriptor to be compared with a plurality of compressed representations of feature descriptors of respective predefined features. By permitting the comparison to be performed utilizing compressed representations of feature descriptors, a respective feature descriptor may be identified without having to first decompress the feature descriptor, thereby potentially increasing the efficiency with which feature descriptors may be identified.

摘要翻译： 可以提供一种方法，装置和计算机程序产品，用于生成可以由相对较少数量的比特表示的多个压缩特征描述符，从而便于特征描述符的传输和存储。 还可以提供一种方法，装置和计算机程序产品，用于允许特征描述符的压缩表示与各个预定义特征的特征描述符的多个压缩表示进行比较。 通过允许使用特征描述符的压缩表示来执行比较，可以识别相应的特征描述符，而不必首先解压缩特征描述符，从而潜在地提高可以识别特征描述符的效率。