TH69786A - A method and encoder for inserting a watermark into the bit stream of the compressed video signal. - Google Patents

Abstract

DC60 (26/08/47). Content herein is a disclosure about video encoders (600), decoders (700) and methods (200, 300, 400, 500) for generating the information contained in the Video signal to generate Watermark where the encoder is loud It is included the quantization unit (630) for the quantization. The bit-stream coefficient of the video signal and the embedded unit (635) to which the signal is connected to A quantization unit to embed bits of a digital fingerprint into a block of bit stream of a video signal in such a way that the parity function of the number of The coefficients that are coded in that block. And removing machine Code with a detecting unit (715) for detecting bits. Of digital fingerprints in the block of the bit stream of the video signal in such a way that Is a function of the parity of the number of Coefficient Put the code in the block and the inverse quantization unit (720) that is connected. Signal to detecting unit for quantization The inverse coefficient of the bit stream of the video signal is disclosed here about the video encoders (600), the decoders (700) and the methods (200, 300, 400, 500) for generating the contained information. in Video signal to generate Watermark where the encoder is loud It is included the quantization unit (630) for the quantization. The bit-stream coefficient of the video signal and the embedded unit (635) to which the signal is connected to A unit of quantization to embed bits of digital fingerprint into a block of bit stream of a video signal in such a way that the parity function of the number The coefficients that are coded in that block. And removing machine Code with a detecting unit (715) for detecting bits. Of digital fingerprints in the block of the bit stream of the video signal in such a way that Is a function of the parity of the number of Coefficient Put the code in the block and the inverse quantization unit (720) that is connected. Signal to detecting unit for quantization The coefficient of the bit stream of such a video signal is inverse.

Claims (2)

1. Methods (200, 300, 400) to incorporate digital fingerprints into the flow. The video signal bit is squeezed by that way. Contains - Presentation (230, 330, 430) unique identification code in The sequential nature of the bits and - embedding (234, 334, 434), each bit of a unique identity. Well down on that blog Was put the corresponding code of the bit stream of The video signal is squeezed by taking the parity of the number of The coefficient that is coded in the block is matched to the value of the bit of Unique identification code 2. Tags: