Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Triangulation as a Form of Self-Supervision for 3D Human Pose
  Estimation   Supervised approaches to 3D pose estimation from single images are remarkably
effective when labeled data is abundant. Therefore, much of the recent
attention has shifted towards semi and (or) weakly supervised learning.
Generating an effective form of supervision with little annotations still poses
major challenges in crowded scenes. However, since it is easy to observe a
scene from multiple cameras, we propose to impose multi-view geometrical
constraints by means of a differentiable triangulation and to use it as form of
self-supervision during training when no labels are available. We therefore
train a 2D pose estimator in such a way that its predictions correspond to the
re-projection of the triangulated 3D one and train an auxiliary network on them
to produce the final 3D poses. We complement the triangulation with a weighting
mechanism that nullify the impact of noisy predictions caused by self-occlusion
or occlusion from other subjects. Our experimental results on Human3.6M and
MPI-INF-3DHP substantiate the significance of our weighting strategy where we
obtain state-of-the-art results in the semi and weakly supervised learning
setup. We also contribute a new multi-player sports dataset that features
occlusion, and show the effectiveness of our algorithm over baseline
triangulation methods.

26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
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The categories of this paper are: econ
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th