808 research outputs found
3DFill:Reference-guided Image Inpainting by Self-supervised 3D Image Alignment
Most existing image inpainting algorithms are based on a single view,
struggling with large holes or the holes containing complicated scenes. Some
reference-guided algorithms fill the hole by referring to another viewpoint
image and use 2D image alignment. Due to the camera imaging process, simple 2D
transformation is difficult to achieve a satisfactory result. In this paper, we
propose 3DFill, a simple and efficient method for reference-guided image
inpainting. Given a target image with arbitrary hole regions and a reference
image from another viewpoint, the 3DFill first aligns the two images by a
two-stage method: 3D projection + 2D transformation, which has better results
than 2D image alignment. The 3D projection is an overall alignment between
images and the 2D transformation is a local alignment focused on the hole
region. The entire process of image alignment is self-supervised. We then fill
the hole in the target image with the contents of the aligned image. Finally,
we use a conditional generation network to refine the filled image to obtain
the inpainting result. 3DFill achieves state-of-the-art performance on image
inpainting across a variety of wide view shifts and has a faster inference
speed than other inpainting models
The performance of a heat pump using nanofluid (R22+TiO2) as the working fluid – an experimental study
It has been well known that the nano-particles, including metals, oxides, carbides, or carbon nanotubes, can increase the conduction and convection coefficients and consequently, enhance the heat transfer. Using nanofluids as working fluids in the refrigeration, air-conditioning and heat pump systems has attracted much attention. This work set-up a test rig to experimentally study the system performance of a heat pump with nanofluid as refrigerant, which was prepared by mixing 5wt% TiO2 with R22. Results show that adding the nano particle TiO2 didn’t changed the heat absorbed in the evaporator clearly but increase the heat released in the condenser. As a results, compared to using pure R22, when using R22 + TiO2, the COP of the cooling cycle was decreased slightly, however, the COP of the heating cycle was increased significantly increased power consumption of compression.publishedVersio
Duality Regularization for Unsupervised Bilingual Lexicon Induction
Unsupervised bilingual lexicon induction naturally exhibits duality, which
results from symmetry in back-translation. For example, EN-IT and IT-EN
induction can be mutually primal and dual problems. Current state-of-the-art
methods, however, consider the two tasks independently. In this paper, we
propose to train primal and dual models jointly, using regularizers to
encourage consistency in back translation cycles. Experiments across 6 language
pairs show that the proposed method significantly outperforms competitive
baselines, obtaining the best-published results on a standard benchmark
MULTI-PORT ELECTROMAGNETIC INTERFERENCE IMPROVEMENT USING HETEROGENEOUS PORTS
Techniques are provided herein for using different profiles on different ports for different radiation directions in multi-port projects. Because the superposition effect is weakened, the maximum radiation of a project is about 3dB smaller than those with uniform ports
- …