Patent ID: 8731235
Filing Date: 2014-05-20
Classification: G06T,H04N

Abstract:
1. A computer-implemented method for fingerprinting a data object to provide a fingerprinted data object, comprising: detecting one or more boundary locations in the data object; splitting the data object at the boundary locations to obtain two or more sections; embedding first watermark data in the two or more sections to obtain two or more first watermarked sections; combining the two or more first watermarked sections to obtain a first variant of the data object; embedding second watermark data in the two or more sections to obtain two or more second watermarked sections; combining the two or more second watermarked sections to obtain a second variant of the data object; obtaining a fingerprint value comprising a sequence of watermark identifiers, the watermark identifiers having a value and a position, the value indicating the first or second variant and the position indicating the two or more first or second watermarked sections within the first or second variant, respectively; and combining the first and second watermarked sections of the first and second variant, respectively, in accordance with the fingerprint value to provide the fingerprinted data object, wherein the watermark data is unique for each section and variant.