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http://dx.doi.org/10.12673/jant.2021.25.2.150

One-dimensional Object Tracking using LSTM Neural Network  

Park, Sun-Bae (Department of Electronic and Electrical Engineering, Graduate School, Hongik University)
Yoo, Do-Sik (Department of Electronic and Electrical Engineering, Graduate School, Hongik University)
Abstract
Object tracking is a technique of signal processing that estimates objects locations based on past locations and present time observed data. While, Kalman filter and particle filter are among the most notable object tracking schemes, these filters need to know the system model to achieve optimal performance. The recursive neural network (RNN) with a feedback loop added to the perceptron neural network can be used for object tracking. Also, RNN evolved into long-short term memory (LSTM) that solved the long-term dependence problem and is being used in various fields. In this paper, in order to study the tracking performance of LSTM, we consider a simple problem of one-dimensional object tracking, and compare the tracking performance with Kalman and particle filters. In order to test the tracking performance in diverse observation environments, various noise models such as Gaussian, Laplace, exponential, and uniformly distributed noises are considered. Under the various circumstances, we observe that LSTM neural network achieves fairly stable performance without knowing the system model.
Keywords
Artificial neural network; Kalman filter; Long-short term memory; Object tracking; Particle filter;
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