Digital watermarking systems and methods
First Claim
Patent Images
1. A method of associating a watermark with a compressed video object, said method comprising:
- decompressing the video object;
determining a digital watermark signal for the decompressed video object, but instead of embedding the determined digital watermark signal in the decompressed video object, compressing the digital watermark signal as an object; and
associating the digital watermark object and the compressed video object.
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Abstract
The present invention relates watermarking compressed objects. A watermark is determined for a compressed video object. The watermark is compressed as an object and the watermarked object is then associated with the compressed video object. The two separate objects are provided to a rendering device, which after decompressing both objects, embeds the watermark in the video prior to rendering.
330 Citations
16 Claims
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1. A method of associating a watermark with a compressed video object, said method comprising:
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decompressing the video object; determining a digital watermark signal for the decompressed video object, but instead of embedding the determined digital watermark signal in the decompressed video object, compressing the digital watermark signal as an object; and associating the digital watermark object and the compressed video object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
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9. A rendering device comprising:
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an input; an output; electronic processing circuitry; and electronic memory circuitry having executable instructions stored thereon, said instructions for execution by said electronic processing circuitry, said instructions comprising instructions to; decompress compressed video received by said input; decompress a compressed digital watermark received by said input, wherein the digital watermark corresponds to the video; and steganographically embed the decompressed digital watermark into the decompressed video, the embedding occurring prior to or upon rendering of the video via said output. - View Dependent Claims (10, 11, 12, 13, 14, 16)
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Specification