Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semi-Supervised Wide-Angle Portraits Correction by Multi-Scale
  Transformer   We propose a semi-supervised network for wide-angle portraits correction.
Wide-angle images often suffer from skew and distortion affected by perspective
distortion, especially noticeable at the face regions. Previous deep learning
based approaches need the ground-truth correction flow maps for training
guidance. However, such labels are expensive, which can only be obtained
manually. In this work, we design a semi-supervised scheme and build a
high-quality unlabeled dataset with rich scenarios, allowing us to
simultaneously use labeled and unlabeled data to improve performance.
Specifically, our semi-supervised scheme takes advantage of the consistency
mechanism, with several novel components such as direction and range
consistency (DRC) and regression consistency (RC). Furthermore, different from
the existing methods, we propose the Multi-Scale Swin-Unet (MS-Unet) based on
the multi-scale swin transformer block (MSTB), which can simultaneously learn
short-distance and long-distance information to avoid artifacts. Extensive
experiments demonstrate that the proposed method is superior to the
state-of-the-art methods and other representative baselines. The source code
and dataset are available at:
https://github.com/megvii-research/Portraits_Correction.

24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph