Reducing watermark perceptibility and extending detection distortion tolerances

An apparatus comprising:

• means for storing data representing video;
• means for embedding a watermark signal in a first portion of stored data, the embedding using a first embedding bump size;
• means for embedding a watermark signal in a second portion of the stored data, the embedding using a second embedding bump size, in which the first embedding bump size corresponds with a first detection range distance when capturing optical scan data associated with the video as it is being rendered on a display, and the second embedding bump size corresponds with a second, larger detection range distance when capturing optical scan data associated with the video as it is being rendered on the display;
• means for controlling provision of the watermarked video to a display.

An apparatus comprising:

• means for storing a watermark signal;
• means for embedding a watermark signal in a first portion of a video signal;
• means for preconditioning the watermark signal in a first manner to allow expanded detection of said preconditioned watermark signal in the presence of first distortion;
• means for embedding the watermark signal preconditioned in the first manner in a second portion of the video signal;
• means for preconditioning the watermark signal in a second manner to allow expanded detection of said preconditioned watermark signal in the presence of second distortion;
• means for embedding the watermark signal preconditioned in the second manner in a third portion of the video signal.