Improving Small Object Proposals for Company Logo Detection


== Abstract ==

Many modern approaches for object detection are two-staged pipelines. The first stage identifies regions of interest which are then classified in the second stage. Faster R-CNN is such an approach for object detection which combines both stages into a single pipeline. In this paper we apply Faster R-CNN to the task of company logo detection. Motivated by its weak performance on small object instances, we examine in detail both the proposal and the classification stage with respect to a wide range of object sizes. We investigate the influence of feature map resolution on the performance of those stages. Based on theoretical considerations, we introduce an improved scheme for generating anchor proposals and propose a modification to Faster R-CNN which leverages higher-resolution feature maps for small objects. We evaluate our approach on the FlickrLogos dataset improving the RPN performance from 0.52 to 0.71 (MABO) and the detection performance from 0.52 to 0.67 (mAP).

Comment: 8 Pages, ICMR 2017


== Original document ==

The different versions of the original document can be found in:

* [http://arxiv.org/abs/1704.08881 http://arxiv.org/abs/1704.08881]

* [http://arxiv.org/pdf/1704.08881 http://arxiv.org/pdf/1704.08881]

* [http://dl.acm.org/ft_gateway.cfm?id=3078990&ftid=1875561&dwn=1 http://dl.acm.org/ft_gateway.cfm?id=3078990&ftid=1875561&dwn=1],
: [http://dx.doi.org/10.1145/3078971.3078990 http://dx.doi.org/10.1145/3078971.3078990] under the license http://www.acm.org/publications/policies/copyright_policy#Background

* [https://dblp.uni-trier.de/db/journals/corr/corr1704.html#EggertZBL17 https://dblp.uni-trier.de/db/journals/corr/corr1704.html#EggertZBL17],
: [https://arxiv.org/pdf/1704.08881.pdf https://arxiv.org/pdf/1704.08881.pdf],
: [https://arxiv.org/abs/1704.08881 https://arxiv.org/abs/1704.08881],
: [https://dl.acm.org/citation.cfm?id=3078990 https://dl.acm.org/citation.cfm?id=3078990],
: [https://export.arxiv.org/pdf/1704.08881 https://export.arxiv.org/pdf/1704.08881],
: [https://ui.adsabs.harvard.edu/abs/2017arXiv170408881E/abstract https://ui.adsabs.harvard.edu/abs/2017arXiv170408881E/abstract],
: [https://doi.acm.org/10.1145/3078971.3078990 https://doi.acm.org/10.1145/3078971.3078990],
: [https://export.arxiv.org/abs/1704.08881 https://export.arxiv.org/abs/1704.08881],
: [https://core.ac.uk/display/83853850 https://core.ac.uk/display/83853850],
: [https://academic.microsoft.com/#/detail/2610420510 https://academic.microsoft.com/#/detail/2610420510]

* [https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/61105 https://opus.bibliothek.uni-augsburg.de/opus4/frontdoor/index/index/docId/61105],
: [https://doi.org/10.1145/3078971.3078990 https://doi.org/10.1145/3078971.3078990]