Title
Training Of Cnn With Heterogeneous Learning For Multiple Pedestrian Attributes Recognition Using Rarity Rate
Abstract
Pedestrian attribute information is important function for an advanced driver assistance system (ADAS). Pedestrian attributes such as body pose, face orientation and open umbrella indicate the intended action or state of the pedestrian. Generally, this information is recognized using independent classifiers for each task. Performing all of these separate tasks is too time-consuming at the testing stage. In addition, the processing time increases with increasing number of tasks. To address this problem, multi-task learning or heterogeneous learning is performed to train a single classifier to perform multiple tasks. In particular, heterogeneous learning is able to simultaneously train a classifier to perform regression and recognition tasks, which reduces both training and testing time. However, heterogeneous learning tends to result in a lower accuracy rate for classes with few training samples. In this paper, we propose a method to improve the performance of heterogeneous learning for such classes. We introduce a rarity rate based on the importance and class probability of each task. The appropriate rarity rate is assigned to each training sample. Thus, the samples in a mini-batch for training a deep convolutional neural network are augmented according to this rarity rate to focus on the classes with a few samples. Our heterogeneous learning approach with the rarity rate performs pedestrian attribute recognition better, especially for classes representing few training samples.
Year
DOI
Venue
2018
10.1587/transinf.2017MVP0001
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
Keywords
Field
DocType
pedestrian attributes recognition, heterogeneous learning, rarity rate
Pedestrian,Pattern recognition,Computer science,Artificial intelligence,Machine learning
Journal
Volume
Issue
ISSN
E101D
5
1745-1361
Citations 
PageRank 
References 
0
0.34
3
Authors
5
Name
Order
Citations
PageRank
Hiroshi Fukui1163.15
Takayoshi Yamashita237746.83
Yuji Yamauchi34310.45
fujiyoshi4730101.43
Hiroshi Murase51927523.30