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A Novel Convolutional Neural Network Based Localization System for Monocular Images

A Novel Convolutional Neural Network Based Localization System for Monocular Images
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Author(s): Chen Sun (Tsinghua University, Beijing, China), Chunping Li (Tsinghua University, Beijing, China) and Yan Zhu (Southwest Jiaotong University, Chengdu, China)
Copyright: 2019
Volume: 11
Issue: 2
Pages: 13
Source title: International Journal of Software Science and Computational Intelligence (IJSSCI)
Editor(s)-in-Chief: Brij Gupta (National Institute of Technology, Kurukshetra, India) and Andrew W.H. Ip (University of Saskatchewan, Canada)
DOI: 10.4018/IJSSCI.2019040103

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Abstract

The authors present a robust and extendable localization system for monocular images. To have both robustness toward noise factors and extendibility to unfamiliar scenes simultaneously, our system combines traditional content-based image retrieval structure with CNN feature extraction model to localize monocular images. The core model of the system is a deep CNN feature extraction model. The feature extraction model can map an image to a d-dimension space where image pairs in the real word have smaller Euclidean distances. The feature extraction model is achieved using a deep Convnet modified from GoogLeNet. A special way to train the feature extraction model is proposed in the article using localization results from Cambridge Landmarks dataset. Through experiments, it is shown that the system is robust to noise factors supported by high level CNN features. Furthermore, the authors show that the system has a powerful extendibility to other unfamiliar scenes supported by a feature extract model's generic property and structure.

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