Anthony Lu's research while affiliated with Massachusetts Institute of Technology and other places

Publications (3)

Article
. Homomorphic signal-processing techniques are used to place information imperceivably into audio data streams by the introduction of synthetic resonances in the form of closely-spaced echoes. These echoes can be used to place digital identification tags directly into an audio signal with minimal objectionable degradation of the original signal. 1...
Conference Paper
Homomorphic signal-processing techniques are used to place information imperceivably into audio data streams by the introduction of synthetic resonances in the form of closely-spaced echoes. These echoes can be used to place digital identification tags directly into an audio signal with minimal objectionable degradation of the original signal.
Article
Full-text available
Data hiding, a form of steganography, embeds data into digital media for the purpose of identification, annotation, and copyright. Several constraints affect this process: the quantity of data to be hidden, the need for invariance of these data under conditions where a "host" signal is subject to distortions, e.g., lossy compression, and the degree...

Citations

... In the past, many audio watermarking methods have been proposed, e.g. support vector [8,9], phase coding [10], spread spectrum [11,12], techniques based on masking [13,14], patchwork [15,16], echo-hiding [17][18][19][20][21][22][23], and so on. As one typical audio watermarking method, echo-hiding has a simple and easy-tooperate embedding and detection process. ...
Citing conference paper
... One of the suggested solutions to this problem is data hiding. Data hiding (DH) [2][3][4][5] is a method for hiding a message in digital media and secretly delivering it to the receiver. The advantage of this method is that it may not attract the attention of the attacker. ...
... Echo Hiding. In this method, a short echo signal is introduced as part of cover audio where secret message is hidden [5]. Study shows that the echo signal is inaudible provided the delay between cover audio and echo signal is up to 1 ms. ...