Title
Equivalence of Correlation Filter and Convolution Filter in Visual Tracking
Abstract
U (Discriminative) Correlation Filter has been successfully applied to visual tracking and has advanced the field significantly in recent years. Correlation filter-based trackers consider visual tracking as a problem of matching the feature template of the object and candidate regions in the detection sample, in which correlation filter provides the means to calculate the similarities. In contrast, convolution filter is usually used for blurring, sharpening, embossing, edge detection, etc. in image processing. On the surface, correlation filter and convolution filter are usually used for different purposes. In this paper, however, we prove, for the first time, that correlation filter and convolution filter are equivalent in the sense that their minimum mean-square errors (MMSEs) in visual tracking are equal, under the condition that the optimal solutions exist and the ideal filter response is Gaussian and centrosymmetric. This result gives researchers the freedom to choose correlation or convolution in formulating their trackers. It also suggests that the explanation of the ideal response in terms of similarities is not essential.
Year
DOI
Venue
2021
10.1007/978-3-030-87361-5_51
IMAGE AND GRAPHICS (ICIG 2021), PT III
Keywords
DocType
Volume
Correlation filter, Convolution filter, Visual tracking
Conference
12890
ISSN
Citations 
PageRank 
0302-9743
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Shuiwang Li102.37
Qijun Zhao241938.37
Ziliang Feng300.34
Li Lu400.34