Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial-Scale Aligned Network for Fine-Grained Recognition   Existing approaches for fine-grained visual recognition focus on learning
marginal region-based representations while neglecting the spatial and scale
misalignments, leading to inferior performance. In this paper, we propose the
spatial-scale aligned network (SSANET) and implicitly address misalignments
during the recognition process. Especially, SSANET consists of 1) a
self-supervised proposal mining formula with Morphological Alignment
Constraints; 2) a discriminative scale mining (DSM) module, which exploits the
feature pyramid via a circulant matrix, and provides the Fourier solver for
fast scale alignments; 3) an oriented pooling (OP) module, that performs the
pooling operation in several pre-defined orientations. Each orientation defines
one kind of spatial alignment, and the network automatically determines which
is the optimal alignments through learning. With the proposed two modules, our
algorithm can automatically determine the accurate local proposal regions and
generate more robust target representations being invariant to various
appearance variances. Extensive experiments verify that SSANET is competent at
learning better spatial-scale invariant target representations, yielding
superior performance on the fine-grained recognition task on several
benchmarks.

16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph