Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-step distortion-free reconstruction scheme for holographic
  microscopy   We propose a three-dimensional holographic reconstruction procedure
applicable with no a priori knowledge about the recording conditions enabling
distortion-free three-dimensional object reconstruction.

1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci