Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the iterative refinement of densely connected representation levels
  for semantic segmentation   State-of-the-art semantic segmentation approaches increase the receptive
field of their models by using either a downsampling path composed of
poolings/strided convolutions or successive dilated convolutions. However, it
is not clear which operation leads to best results. In this paper, we
systematically study the differences introduced by distinct receptive field
enlargement methods and their impact on the performance of a novel
architecture, called Fully Convolutional DenseResNet (FC-DRN). FC-DRN has a
densely connected backbone composed of residual networks. Following standard
image segmentation architectures, receptive field enlargement operations that
change the representation level are interleaved among residual networks. This
allows the model to exploit the benefits of both residual and dense
connectivity patterns, namely: gradient flow, iterative refinement of
representations, multi-scale feature combination and deep supervision. In order
to highlight the potential of our model, we test it on the challenging CamVid
urban scene understanding benchmark and make the following observations: 1)
downsampling operations outperform dilations when the model is trained from
scratch, 2) dilations are useful during the finetuning step of the model, 3)
coarser representations require less refinement steps, and 4) ResNets (by model
construction) are good regularizers, since they can reduce the model capacity
when needed. Finally, we compare our architecture to alternative methods and
report state-of-the-art result on the Camvid dataset, with at least twice fewer
parameters.

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The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph