667 research outputs found
Invertible Mosaic Image Hiding Network for Very Large Capacity Image Steganography
The existing image steganography methods either sequentially conceal secret
images or conceal a concatenation of multiple images. In such ways, the
interference of information among multiple images will become increasingly
severe when the number of secret images becomes larger, thus restrict the
development of very large capacity image steganography. In this paper, we
propose an Invertible Mosaic Image Hiding Network (InvMIHNet) which realizes
very large capacity image steganography with high quality by concealing a
single mosaic secret image. InvMIHNet consists of an Invertible Image Rescaling
(IIR) module and an Invertible Image Hiding (IIH) module. The IIR module works
for downscaling the single mosaic secret image form by spatially splicing the
multiple secret images, and the IIH module then conceal this mosaic image under
the cover image. The proposed InvMIHNet successfully conceal and reveal up to
16 secret images with a small number of parameters and memory consumption.
Extensive experiments on ImageNet-1K, COCO and DIV2K show InvMIHNet outperforms
state-of-the-art methods in terms of both the imperceptibility of stego image
and recover accuracy of secret image
Exclusive Semileptonic Rare Decays in a SUSY SO(10) GUT
In the SUSY SO(10) GUT context, we study the exclusive processes . Using the Wilson coefficients of relevant
operators including the new operators which are induced by
neutral Higgs boson (NHB) penguins, we evaluate some possible observables
associated with these processes like, the invariant mass spectrum (IMS), lepton
pair forward backward asymmetry (FBA), lepton polarization asymmetries etc. In
this model the contributions from Wilson coefficients ,
among new contributions, are dominant. Our results show that the NHB effects
are sensitive to the FBA, , and of decay, which are expected to be measured in B factories, and the
average of the normal polarization can reach several percent for
and it is 0.05 or so for , which
could be measured in the future super B factories and provide a useful
information to probe new physics and discriminate different models.Comment: 16 pages,7 figure
- …