Apparatus and method for transmitting watermark robust to acoustic channel distortion
AssigneeElectronics and Telecommunications Research Institute
InventorsSeung Kwon BEACK, Tae Jin PARK, Jong Mo SUNG, Yong Ju LEE, Tae Jin LEE, Kyeong Ok KANG
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Abstract
A method and an apparatus for transmitting a watermark robust to an acoustic channel distortion are disclosed. The method of transmitting the watermark may include extracting a watermark from a first audio signal including the watermark; modifying the extracted watermark based on a state of an acoustic channel; and embedding the modified watermark into the first audio signal to output a second audio signal.
Claims11
A method of transmitting a watermark, the method comprising:
- extracting a watermark from a first audio signal comprising the watermark;
- modifying the extracted watermark based on a state of an acoustic channel;
- and
- embedding the modified watermark into the first audio signal to output a second audio signal.
A method of transmitting a watermark, the method comprising:
- decoding a watermark and a first audio signal from a bitstream;
- modifying the decoded watermark based on a state of an acoustic channel;
- and
- embedding the modified watermark into the first audio signal to output a second audio signal.
A method of transmitting a watermark, the method comprising:
- extracting a watermark from a video signal comprising the watermark;
- modifying the extracted watermark based on a state of an acoustic channel;
- and
- embedding the modified watermark into an audio signal related to the video signal to output the audio signal.
Dependencies are inferred from the claim text.