Image analysis – Image transformation or preprocessing – Measuring image properties
Reexamination Certificate
2011-07-05
2011-07-05
Johns, Andrew W (Department: 2624)
Image analysis
Image transformation or preprocessing
Measuring image properties
C707SE17028
Reexamination Certificate
active
07974495
ABSTRACT:
The present invention provides methods and apparatus that are helpful for identifying or protecting video. One claim recites a method including: receiving data representing picture elements of video; transforming the data into a frequency domain; comparing characteristics associated with the transformed data to predetermined characteristics that are associated with a first video type, and if the characteristics coincide, determining that the video is of the first video type; and if the characteristics do not coincide, comparing the characteristics of the transformed data to predetermined characteristics that are associated with a second video type, and if the characteristics coincide, determining that the video is of the second video type. Another claim recites a method including: obtaining information associated with a video; selecting a set of information from the obtained information; deriving identifying information from the selected set of information; and providing a security feature in or over data representing picture elements of the video according to the identifying information. Of course, other implementations are provided as well.
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Digimarc Corporation
Johns Andrew W
LandOfFree
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