Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Condition for Energy Efficient Watermarking with Random Vector Model
  without WSS Assumption   Energy efficient watermarking preserves the watermark energy after linear
attack as much as possible. We consider in this letter non-stationary signal
models and derive conditions for energy efficient watermarking under random
vector model without WSS assumption. We find that the covariance matrix of the
energy efficient watermark should be proportional to host covariance matrix to
best resist the optimal linear removal attacks. In WSS process our result
reduces to the well known power spectrum condition. Intuitive geometric
interpretation of the results are also discussed which in turn also provide
more simpler proof of the main results.

16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom