Appeal No. 2003-0274
Application No. 09/476,460
Claims 1, 2, 5 and 9 read as follows:
1. A method of decoding information steganographically
encoded within an image, the method including:
receiving a set of input data that represents the image in
the pixel domain; and
performing a domain transformation on the input data to
produce transformed data that represents the image in a different
domain.
2. The method of claim 1 that further includes computing a
power spectrum of the transformed data.
5. The method of claim 1 that includes performing a matched
filtering operation on data that is related to said transformed
data.
9. The method of claim 1 in which the information is
graticule information by which the scale and rotation of the
image from an initial state can be discerned.
The references relied on by the examiner are:
Bloomberg et al. (Bloomberg) 5,091,966 Feb. 25, 1992
Sheng et al. (Sheng), “Experiments on pattern recognition using
invariant Fourier-Mellin descriptors,” Journal of Optical Society
of America, Vol. 3, No. 6, June 1986, pages 771 through 776.
Short, “Steps Toward Unmasking Secure Communications,”
International Journal of Bifurcation and Chaos,” Vol. 4, No. 4,
August 1994, pages 959 through 977.
Claims 2 through 9 stand rejected under the second paragraph
of 35 U.S.C. § 112 as being indefinite for failing to
particularly point out and distinctly claim the subject matter
which appellant regards as the invention.
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