Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards High Performance Low Complexity Calibration in Appearance Based
  Gaze Estimation   Appearance-based gaze estimation from RGB images provides relatively
unconstrained gaze tracking. We have previously proposed a gaze decomposition
method that decomposes the gaze angle into the sum of a subject-independent
gaze estimate from the image and a subject-dependent bias. This paper extends
that work with a more complete characterization of the interplay between the
complexity of the calibration dataset and estimation accuracy. We analyze the
effect of the number of gaze targets, the number of images used per gaze target
and the number of head positions in calibration data using a new NISLGaze
dataset, which is well suited for analyzing these effects as it includes more
diversity in head positions and orientations for each subject than other
datasets. A better understanding of these factors enables low complexity high
performance calibration. Our results indicate that using only a single gaze
target and single head position is sufficient to achieve high quality
calibration, outperforming state-of-the-art methods by more than 6.3%. One of
the surprising findings is that the same estimator yields the best performance
both with and without calibration. To better understand the reasons, we provide
a new theoretical analysis that specifies the conditions under which this can
be expected.

20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th