Mr. Shiyan Sun Profile

Shiyan Sun

at Beihang University

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Proceedings Article | 9 December 2015 Paper

Robust visual tracking with dual spatio-temporal context trackers

Shiyan Sun, Hong Zhang, Ding Yuan

Proceedings Volume 9817, 98170X (2015) https://doi.org/10.1117/12.2228015

KEYWORDS: Optical tracking, Human-machine interfaces, Detection and tracking algorithms, Fourier transforms, Machine vision, Computer vision technology, Image processing, Visualization, Sun

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Visual tracking is a challenging problem in computer vision. Recent years, significant numbers of trackers have been proposed. Among these trackers, tracking with dense spatio-temporal context has been proved to be an efficient and accurate method. Other than trackers with online trained classifier that struggle to meet the requirement of real-time tracking task, a tracker with spatio-temporal context can run at hundreds of frames per second with Fast Fourier Transform (FFT). Nevertheless, the performance of the tracker with Spatio-temporal context relies heavily on the learning rate of the context, which restricts the robustness of the tracker.

In this paper, we proposed a tracking method with dual spatio-temporal context trackers that hold different learning rate during tracking. The tracker with high learning rate could track the target smoothly when the appearance of target changes, while the tracker with low learning rate could percepts the occlusion occurring and continues to track when the target starts to emerge again. To find the target among the candidates from these two trackers, we adopt Normalized Correlation Coefficient (NCC) to evaluate the confidence of each sample. Experimental results show that the proposed algorithm performs robustly against several state-of-the-art tracking methods.

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