Hierarchical Spatial Pyramid Pooling for Fine-Grained Vehicle Classification

Reza Fuad Rachmadi, Keiichi Uchimura, Gou Koutaki, Kohichi Ogata

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

In this paper, we proposed a hierarchical spatial pyramid pooling mechanism for improving fine-grained vehicle classification problems. Our proposed method created by removing the last layer of convolutional neural network (CNN) classifier, attaching the hierarchical spatial pyramid pooling at the end of the network, and fine-tune the CNN classifier. Our hierarchical spatial pyramid pooling consists of two independent spatial pyramid pooling that pooled the features from two different layers in the original CNN classifier. We modified ResNet50 and AlexNet CNN classifier using our proposed method and test it on fine-grained vehicle classification dataset. Unlike part-based classifier, which very popular method to tackle fine-grained classification problems, our method does not require any pre-processing or post-processing step in order to do the classification tasks. Experiments on BoxCars fine-grained vehicle classification dataset shows that our proposed method can increase the overall accuracy of the classifier and some of the results achieve state-of-the-art performance.

Original languageEnglish
Title of host publication2018 International Workshop on Big Data and Information Security, IWBIS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages19-24
Number of pages6
ISBN (Electronic)9781538655252
DOIs
Publication statusPublished - 24 Sept 2018
Event2018 International Workshop on Big Data and Information Security, IWBIS 2018 - Balai Kartini, Jakarta, Indonesia
Duration: 12 May 201813 May 2018

Publication series

Name2018 International Workshop on Big Data and Information Security, IWBIS 2018

Conference

Conference2018 International Workshop on Big Data and Information Security, IWBIS 2018
Country/TerritoryIndonesia
CityBalai Kartini, Jakarta
Period12/05/1813/05/18

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