Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deep cross-domain building extraction for selective depth estimation
  from oblique aerial imagery   With the technological advancements of aerial imagery and accurate 3d
reconstruction of urban environments, more and more attention has been paid to
the automated analyses of urban areas. In our work, we examine two important
aspects that allow live analysis of building structures in city models given
oblique aerial imagery, namely automatic building extraction with convolutional
neural networks (CNNs) and selective real-time depth estimation from aerial
imagery. We use transfer learning to train the Faster R-CNN method for
real-time deep object detection, by combining a large ground-based dataset for
urban scene understanding with a smaller number of images from an aerial
dataset. We achieve an average precision (AP) of about 80% for the task of
building extraction on a selected evaluation dataset. Our evaluation focuses on
both dataset-specific learning and transfer learning. Furthermore, we present
an algorithm that allows for multi-view depth estimation from aerial imagery in
real-time. We adopt the semi-global matching (SGM) optimization strategy to
preserve sharp edges at object boundaries. In combination with the Faster
R-CNN, it allows a selective reconstruction of buildings, identified with
regions of interest (RoIs), from oblique aerial imagery.

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
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph