Method, apparatus and computer program for inserting a...

Details Method, apparatus and computer program for inserting a... Method, apparatus and computer program for inserting a...

2004-01-29

2008-12-30

Wu, Jingge (Department: 2624)

Image analysis

Applications

C382S100000, C382S232000, C382S240000, C380S051000, C380S054000, C380S201000, C380S287000, C713S179000, C375S240210

Reexamination Certificate

active

07471806

ABSTRACT:
At every reproduction of a moving image, a tamper resistant module (TRM) randomly selects any one of plural electronic watermark inserting modules, and incorporates the module selected into an area randomly selected from among plural non-operation (NOP) areas in an MPEG expansion module. The module can be switched for each image in a series of the moving images. Since an algorithm for inserting the electronic watermark differs for each moving image or each image, elimination of the electronic watermark by means of analysis, particularly, complete elimination from all the images, is extremely difficult.

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