公开(公告)号：US20180192163A1

公开(公告)日：2018-07-05

申请号：US15851601

申请日：2017-12-21

Applicant: Verance Corporation

Inventor： Joseph M. Winograd ,  Jian Zhao ,  Rade Petrovic

IPC: H04N21/8358 ,  H04N21/435 ,  H04N21/437 ,  H04N21/44 ,  H04N21/2668 ,  H04N21/226 ,  H04N21/442 ,  G06F21/10

CPC classification number: H04N21/8358 ,  G06F21/10 ,  H04N21/2265 ,  H04N21/2668 ,  H04N21/435 ,  H04N21/437 ,  H04N21/44008 ,  H04N21/44204

Abstract: Methods and devices are provided to facilitate acquisition of information associated with a multimedia content through embedded watermarks. One such method includes obtaining a server code for embedding into a content. The server code identifies a particular domain name registered to a registrant entity and provides a mapping to an Internet address of a metadata server. Upon receiving an indication that a trigger event is associated with a particular segment of the content, a first watermark payload is formed and embedded in the content. The watermark payload includes the server code, an interval code and a first trigger value. The interval code identifies the particular content segment and the first trigger value indicates that additional information associated with the particular segment is. Detection of the first trigger value from a subsequently distributed content enables a query to the metadata server for acquisition of metadata.

公开(公告)号：US20180146245A1

公开(公告)日：2018-05-24

申请号：US15570238

申请日：2016-04-14

Applicant: Verance Corporation

Inventor： Rade Petrovic ,  Joseph M. Winograd

IPC: H04N21/44 ,  G06F21/16 ,  H04N21/8358 ,  G06T1/00 ,  H04N21/8352

CPC classification number: H04N21/44008 ,  G06F21/16 ,  G06T1/005 ,  G06T2201/0065 ,  H04N21/8352 ,  H04N21/8358 ,  H04N21/8456

Abstract: Method, devices, systems and computer program products are described that improve speed and accuracy of watermark detection from multimedia content, and allow faster and better content recognition. One technique for improving detection of boundaries of an embedded multimedia content segment includes detecting a synchronization header and a full watermark from the multimedia content, constructing a predicted watermark segment that is positioned at a predicted distance from the synchronization header, and comparing the group of candidate watermark symbols obtained from the multimedia content to the first predicted watermark segment to obtain a match. The disclosed techniques enable extraction of watermarks from short content segments, and can utilize a shortened payload design to establish media time during content usage.

公开(公告)号：US09681203B2

公开(公告)日：2017-06-13

申请号：US15139063

申请日：2016-04-26

Applicant: Verance Corporation

Inventor： Joseph M. Winograd ,  Jian Zhao ,  Rade Petrovic

IPC: H04N5/445 ,  H04N21/8358 ,  H04N21/442 ,  H04N21/435 ,  H04N21/44 ,  H04N21/2668 ,  H04N21/437 ,  H04N21/226 ,  G06F21/10

CPC classification number: H04N21/8358 ,  G06F21/10 ,  H04N21/2265 ,  H04N21/2668 ,  H04N21/435 ,  H04N21/437 ,  H04N21/44008 ,  H04N21/44204

Abstract: Methods and devices are provided to obtain associated information for a multimedia content. One such method includes receiving a content at a receiver device equipped with a watermark detector, performing watermark detection on the received content to extract a payload of an embedded watermark. The payload comprises a first field that includes a server identifier and a second field that includes an interval identifier associated with the server identifier. The first field provides a mapping to an Internet address accessible to retrieve metadata associated with content segments identified by the watermark payload. In this method, based on the detected watermark payload, a query is formed and transmitted to a server identified by the Internet address, and a response to the query is received from the server that includes metadata associated with the content.

公开(公告)号：US20160057317A1

公开(公告)日：2016-02-25

申请号：US14831752

申请日：2015-08-20

Applicant: Verance Corporation

Inventor： Jian Zhao ,  Joseph M. Winograd ,  Rade Petrovic

IPC: H04N5/08 ,  H04N19/467 ,  G06K9/00 ,  G06T1/00

CPC classification number: G06T1/0028 ,  G06F21/16 ,  G06K9/00744 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/005 ,  G06T2201/0065 ,  H04N5/08 ,  H04N19/467 ,  H04N21/00 ,  H04N21/4307 ,  H04N21/4627 ,  H04N21/8358

Abstract: Methods, devices and computer program products allow improved synchronization among multiple contents. One disclosed method includes receiving a first and a second content and performing watermark extraction to recover a first timecode as part of a watermark embedded into a segment of that content. The first timecode conforms to a first type of timing system. Next, a timing system associated with the second content is determined, and a mapping is obtained that allows timecode conversion between the first and the second timing systems. Using the mapping to synchronize the presentation of the second content with that of the first content. Thus synchronization of multiple contents is properly maintained even when processing operations such as format conversion and transcoding cause metadata streams that carry timing information to be removed.

Abstract translation: 方法，设备和计算机程序产品可以改善多个内容之间的同步。 一种公开的方法包括接收第一和第二内容并执行水印提取以恢复作为嵌入到该内容的片段中的水印的一部分的第一时间码。 第一个时间码符合第一种定时系统。 接下来，确定与第二内容相关联的定时系统，并且获得允许在第一和第二定时系统之间进行时间码转换的映射。 使用映射来将第二内容的呈现与第一内​​容的呈现同步。 因此，即使在诸如格式转换和代码转换的处理操作导致携带定时信息的元数据流被移除的情况下，也可以适当地维护多个内容的同步。

公开(公告)号：US20160055606A1

公开(公告)日：2016-02-25

申请号：US14830641

申请日：2015-08-19

Applicant: Verance Corporation

Inventor： Rade Petrovic ,  Jian Zhao ,  Joseph M. Winograd

IPC: G06T1/00

CPC classification number: G06T1/0028 ,  G06F21/16 ,  G06K9/00744 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/005 ,  G06T2201/0065 ,  H04N5/08 ,  H04N19/467 ,  H04N21/00 ,  H04N21/4307 ,  H04N21/4627 ,  H04N21/8358

Abstract: Methods, devices and computer program products allow improved detection of watermarks into and from a multimedia content. One method for detecting watermarks from a host content includes performing watermark extraction to obtain a first sequence of watermark symbols from the host content and generating a plurality of predicted watermark templates. Each template corresponds to a sequence of watermark symbols that is predicted based on the first sequence of watermark symbols. A section of the host content is processed to obtain a candidate sequence of watermark symbols and correlation operations between the candidate sequence of watermark symbols and symbols of the predicted watermark templates are performed until a correlation result that is indicative of a successful watermark detection is obtained. An indication that the candidate sequence of watermark symbols represents at least a portion of a reliably extracted watermark message can then be produced.

Abstract translation: 方法，设备和计算机程序产品允许改进对多媒体内容中的水印的检测。 用于从主机内容检测水印的一种方法包括执行水印提取以从主机内容获得第一水印符号序列并生成多个预测水印模板。 每个模板对应于基于第一水印符号序列预测的水印符号序列。 处理主机内容的一部分以获得水印符号的候选序列，并且执行水印符号的候选序列和预测水印模板的符号之间的相关操作，直到获得指示成功的水印检测的相关结果。 可以产生水印符号的候选序列表示可靠提取的水印消息的至少一部分的指示。

公开(公告)号：US20150121534A1

公开(公告)日：2015-04-30

申请号：US14064010

申请日：2013-10-25

Applicant: VERANCE CORPORATION

Inventor： Jian Zhao ,  Joseph M. Winograd

IPC: G06F21/62 ,  G06F21/60

CPC classification number: G06F21/6209 ,  G06F17/30091 ,  G06F21/604 ,  H04L2463/101

Abstract: Systems, devices, methods and computer program products improve various aspects of a content management system. In one scenario, one or more contents are accessed at a content handling device. The content handling device is configured to operate using multiple abstraction layers including an application layer, an operating system layer, a firmware layer and a hardware layer. Content management operations are conducted on the one or more contents using at least two abstraction layers. Such content management operations include conducting watermark extraction and content screening operations at a first layer for a first watermark message having a first value, conducting watermark extraction and content screening operations at a second layer for a second watermark message having a second value, and initiating one or more enforcement actions corresponding to the first value and the second value based at least in-part on respective results of the content screening.

Abstract translation: 系统，设备，方法和计算机程序产品改进了内容管理系统的各个方面。 在一种情况下，在内容处理设备处访问一个或多个内容。 内容处理装置被配置为使用包括应用层，操作系统层，固件层和硬件层的多个抽象层进行操作。 使用至少两个抽象层对一个或多个内容进行内容管理操作。 这样的内容管理操作包括在具有第一值的第一水印消息的第一层进行水印提取和内容筛选操作，在具有第二值的第二水印消息的第二层进行水印提取和内容筛选操作，并且启动一个 或至少部分地基于内容筛选的相应结果对应于第一值和第二值的更多强制措施。

公开(公告)号：US09009482B2

公开(公告)日：2015-04-14

申请号：US14038621

申请日：2013-09-26

Applicant: Verance Corporation

Inventor： Joseph M. Winograd

IPC: H04L29/06 ,  G06T1/00

CPC classification number: G06F21/16 ,  G06F2221/0737 ,  G06T1/0021 ,  G06T1/005 ,  G06T1/0085 ,  G06T2201/0063 ,  H04L9/08

Abstract: Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic watermarks into a digital content signal using a common customization function. The common customization function flexibly employs a range of different marking techniques that are applicable to a wide range of forensic marking schemes. These customization functions are also applicable to pre-processing and post-processing operations that may be necessary for enhancing the security and transparency of the embedded marks, as well as improving the computational efficiency of the marking process. The common customization function supports a well-defined set of operations specific to the task of forensic mark customization that can be carried out with a modest and preferably bounded effort on a wide range of devices. This is accomplished through the use of a generic transformation technique for use as a “customization” step for producing versions of content forensically marked with any of a multiplicity of mark messages.

Abstract translation: 公开了使用公共定制功能将法医水印灵活地插入到数字内容信号中的方法，系统和装置。 通用定制功能灵活采用一系列不同的标记技术，适用于广泛的法医标记方案。 这些定制功能也适用于增强嵌入式标记的安全性和透明度所必需的预处理和后处理操作，以及提高标记过程的计算效率。 通用定制功能支持特定于法医标记定制任务的明确定义的一组操作，可以在广泛的设备上以适度且优选的限制性努力来执行。 这是通过使用通用转换技术来实现的，作为用于产生用多个标记消息中的任何一个标记的内容的版本的“定制”步骤。

公开(公告)号：US20150036873A1

公开(公告)日：2015-02-05

申请号：US14460730

申请日：2014-08-15

Applicant: Verance Corporation

Inventor： Rade Petrovic ,  Babak Tehranchi ,  Joseph M. Winograd ,  Kanaan Jemili

IPC: G06T1/00 ,  H04N1/32

CPC classification number: G06T1/005 ,  G06T1/0028 ,  G06T1/0071 ,  G06T2201/0202 ,  G09C5/00 ,  G10L19/018 ,  H04L2209/608 ,  H04N1/32203 ,  H04N1/32245 ,  H04N1/32299 ,  H04N1/32315 ,  H04N2201/3233

Abstract: Methods and devices are provided to thwart analysis of a watermarking system by preventing analysis of watermarks in a host content. Upon receiving a content at a watermark embedding device, the content is analyzed to ascertain whether one or more test features are present in at least a first portion of the received content. When the analysis reveals that one or more test features are present, embedding of watermarks in at least the first portion of the received content is disabled. The test features of interest include a temporal, a spatial and/or a frequency characteristic such that, if a region of the content that includes test feature is embedded with a watermark, at least one characteristic of the embedded watermark is detectable upon analysis of that region. The test feature can, for example, approximate an impulse signal, a step function signal or a pure sinusoidal signal.

Abstract translation: 提供方法和设备，通过防止主机内容中的水印的分析来阻止水印系统的分析。 在水印嵌入装置接收到内容时，分析内容以确定在所接收的内容的至少第一部分中是否存在一个或多个测试特征。 当分析显示存在一个或多个测试特征时，水印在至少接收的内容的第一部分中的嵌入被禁用。 感兴趣的测试特征包括时间，空间和/或频率特性，使得如果包括测试特征的内容的区域被嵌入水印，则在分析该嵌入水印时，嵌入水印的至少一个特性是可检测的 地区。 测试特征可以例如近似脉冲信号，阶梯函数信号或纯正弦信号。

公开(公告)号：US20150016228A1

公开(公告)日：2015-01-15

申请号：US14444823

申请日：2014-07-28

Applicant: VERANCE CORPORATION

Inventor： Rade Petrovic ,  Joseph M. Winograd

IPC: G08C23/02 ,  G06Q30/02 ,  G10L19/018

CPC classification number: G08C23/02 ,  G06F7/00 ,  G06Q30/0264 ,  G10L19/018 ,  H04B11/00

Abstract: A system for using a watermark embedded in an audio signal to remotely control a device. Various devices such as toys, computers, and appliances, equipped with an appropriate detector, detect the hidden signals, which can trigger an action, or change a state of the device. The watermarks can be used with a “time gate” device, where detection of the watermark opens a time interval within which a user is allowed to perform an action, such as pressing a button, typing in an answer, turning a key in a lock, etc.

Abstract translation: 一种使用嵌入在音频信号中的水印远程控制设备的系统。 配备有适当检测器的各种装置，例如玩具，计算机和电器，可以检测可触发动作的隐藏信号或改变装置的状态。 水印可以与“时间门”设备一起使用，其中水印的检测打开用户被允许执行动作的时间间隔，诸如按下按钮，输入答案，将键转动到锁定中 等等

公开(公告)号：US20140074855A1

公开(公告)日：2014-03-13

申请号：US13828706

申请日：2013-03-14

Applicant: VERANCE CORPORATION

Inventor： Jian Zhao ,  Joseph M. Winograd

IPC: G06F17/30

CPC classification number: G06F16/41 ,  G06F16/94 ,  H04N21/4126 ,  H04N21/8133 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/8547

Abstract: Methods, devices and computer program products facilitate enhanced use and interaction with a multimedia content through the use of tags. While a content is being presented by a device, a content identifier and at least one time code associated with one or more content segments are obtained. One or both of the content identifier and the time code can be obtained from watermarks that are embedded in the content, or through computation of fingerprints that are subsequently matched against a database of stored fingerprints and metadata. The content identifier and the at least one time code are transmitted to a tag server. In response, tag information for the one or more content segments is received and one or more tags are presented to a user. The tags are persistently associated with temporal locations of the content segments.

Abstract translation: 方法，设备和计算机程序产品通过使用标签来促进对多媒体内容的增强的使用和交互。 当由设备呈现内容时，获得与一个或多个内容片段相关联的内容标识符和至少一个时间码。 内容标识符和时间码中的一个或两个可以从嵌入在内容中的水印获得，或者通过计算随后与存储的指纹和元数据的数据库匹配的指纹。 将内容标识符和至少一个时间码发送到标签服务器。 作为响应，接收一个或多个内容段的标签信息，并向用户呈现一个或多个标签。 标签与内容片段的时间位置持续相关。