7,907 research outputs found
Attribute-Guided Face Generation Using Conditional CycleGAN
We are interested in attribute-guided face generation: given a low-res face
input image, an attribute vector that can be extracted from a high-res image
(attribute image), our new method generates a high-res face image for the
low-res input that satisfies the given attributes. To address this problem, we
condition the CycleGAN and propose conditional CycleGAN, which is designed to
1) handle unpaired training data because the training low/high-res and high-res
attribute images may not necessarily align with each other, and to 2) allow
easy control of the appearance of the generated face via the input attributes.
We demonstrate impressive results on the attribute-guided conditional CycleGAN,
which can synthesize realistic face images with appearance easily controlled by
user-supplied attributes (e.g., gender, makeup, hair color, eyeglasses). Using
the attribute image as identity to produce the corresponding conditional vector
and by incorporating a face verification network, the attribute-guided network
becomes the identity-guided conditional CycleGAN which produces impressive and
interesting results on identity transfer. We demonstrate three applications on
identity-guided conditional CycleGAN: identity-preserving face superresolution,
face swapping, and frontal face generation, which consistently show the
advantage of our new method.Comment: ECCV 201
Magnetotransport in a double quantum wire: Modeling using a scattering formalism built on the Lippmann-Schwinger equation
We model electronic transport through a double quantum wire in an external
homogeneous perpendicular magnetic field using a scattering formalism built on
the Lippmann-Schwinger equation. In the scattering region a window is opened
between the parallel wires allowing for inter- and intra-wire scattering
processes. Due to the parity breaking of the magnetic field the ensuing subband
energy spectrum of the double wire system with its regimes of hole- and
electron-like propagating modes leads to a more structure rich conductance as a
function of the energy of the incoming waves than is seen in a single
parabolically confined quantum wire. The more complex structure of the
evanescent modes of the system also leaves its marks on the conductance.Comment: RevTeX, 8 pages with 10 included postscript figures, high resolution
version available at http://hartree.raunvis.hi.is/~vidar/Rann/DW_VGCST_06.pd
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