NDLI: A bilinear interpolation mean shift small target tracking algorithm

Content Provider	IEEE Xplore Digital Library
Author	Yimei Kang Guan Wang Jiang Hu
Copyright Year	2011
Description	Author affiliation: Beijing Institute of Computer Technology and Application, BICA, China (Jiang Hu) \|\| Software School, Beihang University, BUAA, Beijing, China (Yimei Kang; Guan Wang)
Abstract	It is difficult to track targets in grayscale videos especially for small targets because of the lack of the target image information. A tracking algorithm was proposed to track small targets in grayscale videos whose size was from 7×7 pixels to 25×25 pixels. The algorithm included six steps: (1) enlarge the target and the surrounding region by bilinear interpolation; (2) enhance the target features of the enlarged region by histogram equalization; (3) expand the single grayscale video into three channel video by pixel gradient; (4) establish the target model and the target candidates by kernel density estimation in the enlarged and equalized image space; (5) obtain the target location in the enlarged image by mean shift method; and (6) transform the location of target from the enlarged image to the original image. The time complexity of the proposed algorithm is O(n). The experimental results showed that the algorithm was able to track the small targets steadily, accurately and quickly. The deviation of target location was zero for most frames and no more than 2 pixels for a few frames in which the target rotated at a large angle. The time spent in tracking the small target in a frame was 15 or 16 ms for the two testing cases in this study.
Starting Page	1
Ending Page	6
File Size	477472
Page Count	6
File Format	PDF
ISBN	9781457711794
e-ISBN	9781457711800
e-ISBN	9781457711787
DOI	10.1109/ICSPCS.2011.6140873
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Histograms Interpolation Target tracking kernel density estimation interpolation mean shift histogram equalization Gray-scale Kernel small target tracking Videos
Content Type	Text
Resource Type	Article

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