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1. 发明申请

US20100014705A1 Optimized Digital Watermarking Functions for Streaming Data 有权
标题翻译：流数据优化数字水印功能
公开(公告)号：US20100014705A1
公开(公告)日：2010-01-21
申请号：US12356489
申请日：2009-01-20
申请人： Ammon E. Gustafson , Robert G. Lyons
发明人： Ammon E. Gustafson , Robert G. Lyons
IPC分类号： G06K9/00
CPC分类号： G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0065
摘要： A digital watermark detector comprises a memory buffer for receiving an incoming stream of data. The detector includes a registration module for determining registration of embedded data in blocks of the incoming stream of data, and logic for re-using the registration for subsequent blocks of the incoming stream of data to detect machine readable signals. Another digital watermark detector comprises a message reader for extracting message estimates from blocks of media signal data and a decoder for combining the extracted message estimates and decoding a message from the combined message elements. Another digital watermark detector comprises a memory buffer and pipelined watermark processor segments. The segments each perform a different watermark detector operation. These segments concurrently operate on different data segments of the block of data in a processing pipeline.
摘要翻译：数字水印检测器包括用于接收输入数据流的存储器缓冲器。检测器包括用于确定输入数据流的块中嵌入数据的注册的注册模块，以及用于重新使用用于输入数据流的后续块的注册的逻辑，以检测机器可读信号。另一种数字水印检测器包括用于从媒体信号数据块中提取消息估计的消息读取器和用于组合提取的消息估计和从组合消息元素解码消息的解码器。另一数字水印检测器包括存储器缓冲器和流水线水印处理器段。每个段执行不同的水印检测器操作。这些段在处理流水线中同时对数据块的不同数据段进行操作。

2. 发明授权

US07957552B2 Optimized digital watermarking functions for streaming data 有权
标题翻译：用于流数据的优化数字水印功能
公开(公告)号：US07957552B2
公开(公告)日：2011-06-07
申请号：US12356489
申请日：2009-01-20
申请人： Ammon E. Gustafson , Robert G. Lyons
发明人： Ammon E. Gustafson , Robert G. Lyons
IPC分类号： G06K9/00 , H04L9/32
CPC分类号： G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0065
摘要： A digital watermark detector comprises a memory buffer for receiving an incoming stream of data. The detector includes a registration module for determining registration of embedded data in blocks of the incoming stream of data, and logic for re-using the registration for subsequent blocks of the incoming stream of data to detect machine readable signals. Another digital watermark detector comprises a message reader for extracting message estimates from blocks of media signal data and a decoder for combining the extracted message estimates and decoding a message from the combined message elements. Another digital watermark detector comprises a memory buffer and pipelined watermark processor segments. The segments each perform a different watermark detector operation. These segments concurrently operate on different data segments of the block of data in a processing pipeline.
摘要翻译：数字水印检测器包括用于接收输入数据流的存储器缓冲器。检测器包括用于确定输入数据流的块中嵌入数据的注册的注册模块，以及用于重新使用用于输入数据流的后续块的注册的逻辑，以检测机器可读信号。另一种数字水印检测器包括用于从媒体信号数据块中提取消息估计的消息读取器和用于组合提取的消息估计和从组合消息元素解码消息的解码器。另一数字水印检测器包括存储器缓冲器和流水线水印处理器段。每个段执行不同的水印检测器操作。这些段在处理流水线中同时对数据块的不同数据段进行操作。

3. 发明授权

US07480393B2 Optimized digital watermarking functions for streaming data 有权
标题翻译：用于流数据的优化数字水印功能
公开(公告)号：US07480393B2
公开(公告)日：2009-01-20
申请号：US11009694
申请日：2004-12-10
申请人： Ammon E. Gustafson , Robert G. Lyons
发明人： Ammon E. Gustafson , Robert G. Lyons
IPC分类号： G06K9/00 , G06K9/54 , H04L9/00
CPC分类号： G06T1/005 , G06T2201/0051 , G06T2201/0052 , G06T2201/0061 , G06T2201/0065
摘要： In one aspect of the invention, a digital watermark detector comprises a memory buffer for managing an incoming stream of data. The detector includes logic for transferring overlapping data blocks from the memory buffer to a frequency domain transform processor, such as an FFT processor. The frequency domain transform processor including logic to re-use frequency domain transform operation results for overlapping portions of the data blocks. In another aspect of the invention, a digital watermark detector comprises a memory buffer for a block of data, and pipelined watermark processor segments. The segments each perform different watermark detector operations in series. These segments concurrently operate on different data segments of the block of data in a processing pipeline. One embodiment employs pipelined processors for setting up data for subsequent detecting stages, such as pipelined data conversion, re-sampling, pre-filtering and frequency domain transforms. Alternative embodiments pipeline data transformations, correlation operations (e.g., matched filter operations) etc. Data flows through the processing pipeline until it reaches a critical point. At stages before the critical point, data may be dropped as not likely to include digital watermark data. This pruning of data helps reduce un-needed processing and/or false positives of watermark detection.
摘要翻译：在本发明的一个方面，数字水印检测器包括用于管理输入数据流的存储器缓冲器。检测器包括用于将重叠数据块从存储器缓冲器传送到诸如FFT处理器之类的频域变换处理器的逻辑。频域变换处理器包括重新使用频域变换操作结果的逻辑以重叠数据块的部分。在本发明的另一方面，一种数字水印检测器包括用于数据块的存储缓冲器和流水线水印处理器段。这些段各自执行不同的水印检测器操作。这些段在处理流水线中同时对数据块的不同数据段进行操作。一个实施例采用流水线处理器来建立后续检测阶段的数据，例如流水线数据转换，重采样，预滤波和频域变换。替代实施例，流水线数据变换，相关操作（例如，匹配滤波器操作）等。数据流经处理流水线直到其到达临界点。在临界点之前的阶段，数据可能会丢弃，因为不太可能包含数字水印数据。这种修剪数据有助于减少水印检测的不必要的处理和/或误报。

4. 发明授权

US09182778B2 Signal processors and methods for estimating transformations between signals with least squares 有权
标题翻译：用于估计具有最小二乘法的信号之间的变换的信号处理器和方法
公开(公告)号：US09182778B2
公开(公告)日：2015-11-10
申请号：US13224608
申请日：2011-09-02
申请人： Ravi K. Sharma , John Douglas Lord , Robert G. Lyons
发明人： Ravi K. Sharma , John Douglas Lord , Robert G. Lyons
IPC分类号： G06T1/00 , G06T3/00 , G06K9/62 , G06F1/02
CPC分类号： G06T1/0064 , G06F1/02 , G06K9/6206 , G06T1/0021 , G06T3/0006 , G06T3/0056
摘要： Signal processing devices and methods estimate transforms between signals using a least squares technique. From a seed set of transform candidates, a direct least squares method applies a seed transform candidate to a reference signal and then measures correlation between the transformed reference signal and a suspect signal. For each candidate, update coordinates of reference signal features are identified in the suspect signal and provided as input to a least squares method to compute an update to the transform candidate. The method iterates so long as the update of the transform provides a better correlation. At the end of the process, the method identifies a transform or set of top transforms based on a further analysis of correlation, as well as other results.
摘要翻译：信号处理装置和方法使用最小二乘法估计信号之间的变换。从种子变换候选组中，直接最小二乘法将种子变换候选应用于参考信号，然后测量变换的参考信号与可疑信号之间的相关性。对于每个候选者，参考信号特征的更新坐标在可疑信号中被识别，并作为输入提供给最小二乘法以计算变换候选的更新。只要变换的更新提供了更好的相关性，该方法将重复。在该过程结束时，该方法基于对相关性的进一步分析以及其他结果来识别变换或顶点变换集合。

5. 发明授权

US08867860B2 Signal processors and methods for estimating transformations between signals with phase estimation 有权
标题翻译：用于估计具有相位估计的信号之间的变换的信号处理器和方法
公开(公告)号：US08867860B2
公开(公告)日：2014-10-21
申请号：US13224673
申请日：2011-09-02
申请人： Robert G. Lyons , John Douglas Lord
发明人： Robert G. Lyons , John Douglas Lord
IPC分类号： G06K9/36 , G06K9/00 , G06T1/00 , G06K9/62
CPC分类号： G06T1/0064 , G06F1/02 , G06K9/6206 , G06T1/0021 , G06T3/0006 , G06T3/0056
摘要： Signal processing devices and methods estimate transforms between signals, and in particular, utilize techniques for estimating phase between a reference signal and a suspect signal. A phase estimation method estimates the phase of reference signal components in a suspect signal using a point spread function. The method provides a set of feature locations representing a discrete reference signal, applies a transform to the reference signal to provide a set of transformed locations, and then uses a point spread function to sample phase from the suspect signal at discrete sample locations in a neighborhood around the transformed locations. This process provides an estimate of phase of the suspect signal at locations corresponding to the transformed locations.
摘要翻译：信号处理装置和方法估计信号之间的变换，特别是利用估计参考信号和可疑信号之间相位的技术。相位估计方法使用点扩散函数来估计可疑信号中的参考信号分量的相位。该方法提供了一组表示离散参考信号的特征位置，将变换应用于参考信号以提供一组变换的位置，然后使用点扩散函数从附近的离散样本位置处的可疑信号采样相位在转换的地点周围。该过程提供了对应于变换的位置的位置处的可疑信号的相位的估计。

6. 发明申请

US20120082398A1 Signal Processors and Methods for Estimating Transformations Between Signals with Phase Estimation 有权
标题翻译：信号处理器和估计信号与相位估计之间的转换的方法
公开(公告)号：US20120082398A1
公开(公告)日：2012-04-05
申请号：US13224673
申请日：2011-09-02
申请人： Robert G. Lyons , John Douglas Lord
发明人： Robert G. Lyons , John Douglas Lord
IPC分类号： G06K9/36
CPC分类号： G06T1/0064 , G06F1/02 , G06K9/6206 , G06T1/0021 , G06T3/0006 , G06T3/0056
摘要： Signal processing devices and methods estimate transforms between signals, and in particular, utilize techniques for estimating phase between a reference signal and a suspect signal. A phase estimation method estimates the phase of reference signal components in a suspect signal using a point spread function. The method provides a set of feature locations representing a discrete reference signal, applies a transform to the reference signal to provide a set of transformed locations, and then uses a point spread function to sample phase from the suspect signal at discrete sample locations in a neighborhood around the transformed locations. This process provides an estimate of phase of the suspect signal at locations corresponding to the transformed locations.
摘要翻译：信号处理装置和方法估计信号之间的变换，特别是利用估计参考信号和可疑信号之间相位的技术。相位估计方法使用点扩散函数来估计可疑信号中的参考信号分量的相位。该方法提供了一组表示离散参考信号的特征位置，将变换应用于参考信号以提供一组变换的位置，然后使用点扩散函数从附近的离散采样位置处的可疑信号采样相位在转换的地点周围。该过程提供了对应于变换的位置的位置处的可疑信号的相位的估计。

7. 发明申请

US20120078989A1 Signal Processors and Methods for Estimating Transformations Between Signals with Least Squares 有权
标题翻译：信号处理器和估计信号与最小二乘法之间的转换的方法
公开(公告)号：US20120078989A1
公开(公告)日：2012-03-29
申请号：US13224608
申请日：2011-09-02
申请人： Ravi K. Sharma , John Douglas Lord , Robert G. Lyons
发明人： Ravi K. Sharma , John Douglas Lord , Robert G. Lyons
IPC分类号： G06F17/14
CPC分类号： G06T1/0064 , G06F1/02 , G06K9/6206 , G06T1/0021 , G06T3/0006 , G06T3/0056
摘要： Signal processing devices and methods estimate transforms between signals using a least squares technique. From a seed set of transform candidates, a direct least squares method applies a seed transform candidate to a reference signal and then measures correlation between the transformed reference signal and a suspect signal. For each candidate, update coordinates of reference signal features are identified in the suspect signal and provided as input to a least squares method to compute an update to the transform candidate. The method iterates so long as the update of the transform provides a better correlation. At the end of the process, the method identifies a transform or set of top transforms based on a further analysis of correlation, as well as other results.
摘要翻译：信号处理装置和方法使用最小二乘法估计信号之间的变换。从种子变换候选组中，直接最小二乘法将种子变换候选应用于参考信号，然后测量变换的参考信号与可疑信号之间的相关性。对于每个候选者，参考信号特征的更新坐标在可疑信号中被识别，并作为输入提供给最小二乘法以计算变换候选的更新。只要变换的更新提供了更好的相关性，该方法将重复。在该过程结束时，该方法基于对相关性的进一步分析以及其他结果来识别变换或顶点变换集合。

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