Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classifying In-Place Gestures with End-to-End Point Cloud Learning   Walking in place for moving through virtual environments has attracted
noticeable attention recently. Recent attempts focused on training a classifier
to recognize certain patterns of gestures (e.g., standing, walking, etc) with
the use of neural networks like CNN or LSTM. Nevertheless, they often consider
very few types of gestures and/or induce less desired latency in virtual
environments. In this paper, we propose a novel framework for accurate and
efficient classification of in-place gestures. Our key idea is to treat several
consecutive frames as a "point cloud". The HMD and two VIVE trackers provide
three points in each frame, with each point consisting of 12-dimensional
features (i.e., three-dimensional position coordinates, velocity, rotation,
angular velocity). We create a dataset consisting of 9 gesture classes for
virtual in-place locomotion. In addition to the supervised point-based network,
we also take unsupervised domain adaptation into account due to inter-person
variations. To this end, we develop an end-to-end joint framework involving
both a supervised loss for supervised point learning and an unsupervised loss
for unsupervised domain adaptation. Experiments demonstrate that our approach
generates very promising outcomes, in terms of high overall classification
accuracy (95.0%) and real-time performance (192ms latency). Our code will be
publicly available at: https://github.com/ZhaoLizz/PCT-MCD.

14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con