Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Consistent 3D Hand Reconstruction in Video via self-supervised Learning   We present a method for reconstructing accurate and consistent 3D hands from
a monocular video. We observe that detected 2D hand keypoints and the image
texture provide important cues about the geometry and texture of the 3D hand,
which can reduce or even eliminate the requirement on 3D hand annotation. Thus
we propose ${\rm {S}^{2}HAND}$, a self-supervised 3D hand reconstruction model,
that can jointly estimate pose, shape, texture, and the camera viewpoint from a
single RGB input through the supervision of easily accessible 2D detected
keypoints. We leverage the continuous hand motion information contained in the
unlabeled video data and propose ${\rm {S}^{2}HAND(V)}$, which uses a set of
weights shared ${\rm {S}^{2}HAND}$ to process each frame and exploits
additional motion, texture, and shape consistency constrains to promote more
accurate hand poses and more consistent shapes and textures. Experiments on
benchmark datasets demonstrate that our self-supervised approach produces
comparable hand reconstruction performance compared with the recent
full-supervised methods in single-frame as input setup, and notably improves
the reconstruction accuracy and consistency when using video training data.

9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
6
The categories of this paper are: astro-ph