公开(公告)号：US20040008864A1

公开(公告)日：2004-01-15

申请号：US10356322

申请日：2003-01-31

Applicant: Kaleidescape, Inc.

Inventor： Stephen Watson ,  Daniel A. Collens ,  Kevin Hui ,  Michael A. Malcolm

IPC: G06K009/00

CPC classification number: H04N1/32187 ,  G06T1/0035 ,  H04N1/32165 ,  H04N1/32277 ,  H04N19/467 ,  H04N21/2383 ,  H04N21/23892 ,  H04N21/4348 ,  H04N21/8358 ,  H04N2201/324

Abstract: A method of embedding information in digital content representing media streams. The method includes (1) selecting a set of locations within that digital content reprensenting the media stream to embed information, (2) selecting a set of possible alterations to make at those locations, and (3) making a subset of the possible alterations. The set of locations and possible alterations is herein sometimes called a nullwatermark.null The subset of actual alterations that are made is herein sometimes called a nullfingerprint.null The method determines a set of locations at which there are alternative versions of digital content representing the same media stream, such as one being the original and one being an alternative version of the same digital content, herein sometimes called the nulloriginal movienull and the nullalt-movie,null or herein sometimes called the nulloriginal blocknull and the nullalt-blocknull for a particular block in the digital content representing the media stream.

Abstract translation: 一种在表示媒体流的数字内容中嵌入信息的方法。 该方法包括：（1）选择代替媒体流的数字内容中的一组位置以嵌入信息;（2）选择在这些位置进行的一组可能的改变，以及（3）制作可能的改变的子集。 这里的位置和可能的改变在这里有时被称为“水印”。 所做的实际改变的子集有时称为“指纹”。 该方法确定一组位置，其中存在代表相同媒体流的数字内容的替代版本，例如一个是原始的，一个是相同数字内容的替代版本，在此有时称为“原始电影”，并且 “alt-movie”，或有时称为“原始块”的“alt-block”和表示媒体流的数字内容中的特定块的“alt-block”。