CONTENT MANAGEMENT BASED ON DITHER-LIKE WATERMARK EMBEDDING

    公开(公告)号:US20180018748A1

    公开(公告)日:2018-01-18

    申请号:US15715755

    申请日:2017-09-26

    Abstract: Methods, devices and computer program products allow embedding and detection of watermarks into and from a multimedia content. One watermark embedding method includes selecting a content segment that lacks inherent features for embedding of watermarks without producing perceptible artifacts, and obtaining a first dither pattern corresponding to a first watermark symbol of a watermark symbol alphabet, where each symbol is associated with a particular dither pattern. Further, each particular dither pattern, upon combination with the multimedia content segment that lacks inherent features, produces a composite content segment without perceptible artifacts. By combining the first dither pattern with the multimedia content segment that lacks inherent features, a first composite content segment with the first embedded watermark symbol is produced. The detection of watermarks messages can be carried out quickly by examining a small portions of the multimedia because even the featureless content segments include embedded watermarks.

    ENHANCED METADATA AND CONTENT DELIVERY USING WATERMARKS

    公开(公告)号:US20170374434A1

    公开(公告)日:2017-12-28

    申请号:US15680873

    申请日:2017-08-18

    Abstract: Methods, systems and devices enable enhanced delivery of metadata, as well as auxiliary programs and services associated with a primary content. In one method, a primary content with pre-existing watermarks is received at a content distributor device. The pre-existing watermark include specific fields that allow retrieval of a first metadata. The values and boundary locations of the symbols of the pre-existing watermark messages are determined, and symbols of a new watermark message are embedded in the primary content to render the pre-existing watermarks undetectable. The new watermark message includes symbol values that different from those in the pre-existing watermark messages and enable retrieval of a second metadata. Upon transmission of the primary content to a client device, detection of the new watermark message, and initiation of a request by the client device, access to the first or the metadata, as well as associated programs or services, are enabled.

    ENHANCED METADATA AND CONTENT DELIVERY USING WATERMARKS
    68.
    发明申请
    ENHANCED METADATA AND CONTENT DELIVERY USING WATERMARKS 有权
    使用WATERMARKS的增强元数据和内容传送

    公开(公告)号:US20160150297A1

    公开(公告)日:2016-05-26

    申请号:US14951171

    申请日:2015-11-24

    Abstract: Methods, systems and devices enable enhanced delivery of metadata, as well as auxiliary programs and services associated with a primary content. In one method, a primary content with pre-existing watermarks is received at a content distributor device. The pre-existing watermark include specific fields that allow retrieval of a first metadata. The values and boundary locations of the symbols of the pre-existing watermark messages are determined, and symbols of a new watermark message are embedded in the primary content to render the pre-existing watermarks undetectable. The new watermark message includes symbol values that different from those in the pre-existing watermark messages and enable retrieval of a second metadata. Upon transmission of the primary content to a client device, detection of the new watermark message, and initiation of a request by the client device, access to the first or the metadata, as well as associated programs or services, are enabled.

    Abstract translation: 方法,系统和设备能够增强元数据的传送,以及与主要内容相关联的辅助程序和服务。 在一种方法中,在内容分发器设备处接收具有预先存在的水印的主要内容。 预先存在的水印包括允许检索第一元数据的特定字段。 确定预先存在的水印消息的符号的值和边界位置,并且新的水印消息的符号被嵌入在主要内容中以使得先前存在的水印是不可检测的。 新的水印消息包括与预先存在的水印消息中不同的符号值,并且能够检索第二元数据。 在将主要内容传送到客户端设备时,能够检测新的水印消息,以及由客户端设备发起请求,访问第一个或元数据以及相关联的程序或服务。

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