41,598 research outputs found
Learning Residual Images for Face Attribute Manipulation
Face attributes are interesting due to their detailed description of human
faces. Unlike prior researches working on attribute prediction, we address an
inverse and more challenging problem called face attribute manipulation which
aims at modifying a face image according to a given attribute value. Instead of
manipulating the whole image, we propose to learn the corresponding residual
image defined as the difference between images before and after the
manipulation. In this way, the manipulation can be operated efficiently with
modest pixel modification. The framework of our approach is based on the
Generative Adversarial Network. It consists of two image transformation
networks and a discriminative network. The transformation networks are
responsible for the attribute manipulation and its dual operation and the
discriminative network is used to distinguish the generated images from real
images. We also apply dual learning to allow transformation networks to learn
from each other. Experiments show that residual images can be effectively
learned and used for attribute manipulations. The generated images remain most
of the details in attribute-irrelevant areas
Stochastic model of the NASA/MSFC ground facility for large space structures with uncertain parameters: The maximum entropy approach
A stochastic control model of the NASA/MSFC Ground Facility for Large Space Structures (LSS) control verification through Maximum Entropy (ME) principle adopted in Hyland's method was presented. Using ORACLS, a computer program was implemented for this purpose. Four models were then tested and the results presented
An Adaptive Dictionary Learning Approach for Modeling Dynamical Textures
Video representation is an important and challenging task in the computer
vision community. In this paper, we assume that image frames of a moving scene
can be modeled as a Linear Dynamical System. We propose a sparse coding
framework, named adaptive video dictionary learning (AVDL), to model a video
adaptively. The developed framework is able to capture the dynamics of a moving
scene by exploring both sparse properties and the temporal correlations of
consecutive video frames. The proposed method is compared with state of the art
video processing methods on several benchmark data sequences, which exhibit
appearance changes and heavy occlusions
The chaotic effects in a nonlinear QCD evolution equation
The corrections of gluon fusion to the DGLAP and BFKL equations are discussed
in a united partonic framework. The resulting nonlinear evolution equations are
the well-known GLR-MQ-ZRS equation and a new evolution equation. Using the
available saturation models as input, we find that the new evolution equation
has the chaos solution with positive Lyaponov exponents in the perturbative
range. We predict a new kind of shadowing caused by chaos, which blocks the QCD
evolution in a critical small range. The blocking effect in the evolution
equation may explain the Abelian gluon assumption and even influence our
expectations to the projected Large Hadron Electron Collider (LHeC), Very Large
Hadron Collider (VLHC) and the upgrade (CppC) in a circular collider
(SppC).Comment: 58 pages, 23 figures,. Final version to appear in NP
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