Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hybrid Diffractive Optics Design via Hardware-in-the-Loop Methodology
  for Achromatic Extended-Depth-of-Field Imaging   End-to-end optimization of diffractive optical elements (DOEs) profile
through a digital differentiable model combined with computational imaging have
gained an increasing attention in emerging applications due to the compactness
of resultant physical setups. Despite recent works have shown the potential of
this methodology to design optics, its performance in physical setups is still
limited and affected by manufacturing artifacts of DOE, mismatch between
simulated and resultant experimental point spread functions, and calibration
errors. Additionally, the computational burden of the digital differentiable
model to effectively design the DOE is increasing, thus limiting the size of
the DOE that can be designed. To overcome the above mentioned limitations, the
broadband imaging system with phase-only spatial light modulator (SLM) as an
encoded DOE is proposed and developed in this paper. A co-design of the SLM
phase pattern and image reconstruction algorithm is produced following the
end-to-end strategy, using for optimization a convolutional neural network
equipped with quantitative and qualitative loss functions. The optics of the
imaging system is hybrid consisting of SLM as DOE and refractive lens. SLM
phase-pattern is optimized by applying the Hardware-in-the-loop technique,
which helps to eliminate the mismatch between numerical modeling and physical
reality of image formation as light propagation is not numerically modeled but
is physically done. In our experiments, the hybrid optics is implemented by the
optical projection of the SLM phase-pattern on a lens plane for a depth range
0.4-1.9m. Comparison with compound multi-lens optics such as Sony A7 III and
iPhone Xs Max cameras show that the proposed system is advanced in all-in-focus
sharp imaging.

8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg