Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LOTR: Face Landmark Localization Using Localization Transformer   This paper presents a novel Transformer-based facial landmark localization
network named Localization Transformer (LOTR). The proposed framework is a
direct coordinate regression approach leveraging a Transformer network to
better utilize the spatial information in the feature map. An LOTR model
consists of three main modules: 1) a visual backbone that converts an input
image into a feature map, 2) a Transformer module that improves the feature
representation from the visual backbone, and 3) a landmark prediction head that
directly predicts the landmark coordinates from the Transformer's
representation. Given cropped-and-aligned face images, the proposed LOTR can be
trained end-to-end without requiring any post-processing steps. This paper also
introduces the smooth-Wing loss function, which addresses the gradient
discontinuity of the Wing loss, leading to better convergence than standard
loss functions such as L1, L2, and Wing loss. Experimental results on the JD
landmark dataset provided by the First Grand Challenge of 106-Point Facial
Landmark Localization indicate the superiority of LOTR over the existing
methods on the leaderboard and two recent heatmap-based approaches. On the WFLW
dataset, the proposed LOTR framework demonstrates promising results compared
with several state-of-the-art methods. Additionally, we report the improvement
in state-of-the-art face recognition performance when using our proposed LOTRs
for face alignment.

11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics