Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimized fringe removal algorithm for absorption images   Optical absorption imaging is a basic detection technique for obtaining
information from matter waves, in which the absorption signal can be obtained
by comparing the recorded detection light field with the light field in the
presence of absorption, thereby giving the spatial distribution of the atoms.
The noise in detection arises mainly from differences between the two recorded
light field distributions, which is difficult to avoid in experiments. In this
work, we present an optimized fringe removal algorithm, developing a method to
generate an ideal reference light field, avoiding the noise generated by the
light field difference, and suppressing the noise signal to the theoretical
limit. Using principal component analysis, we explore the optimal calculation
area and how to remove noise information from the basis to allow optimal
performance and speed. As an example, we consider scattering atomic peaks with
a small number of atoms in a triangular lattice. Compared with the conventional
processing method, our algorithm can reduce the measured atomic temperature
variance by more than three times, giving a more reliable result.

9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess