283 research outputs found
Remove Cosine Window from Correlation Filter-based Visual Trackers: When and How
Correlation filters (CFs) have been continuously advancing the
state-of-the-art tracking performance and have been extensively studied in the
recent few years. Most of the existing CF trackers adopt a cosine window to
spatially reweight base image to alleviate boundary discontinuity. However,
cosine window emphasizes more on the central region of base image and has the
risk of contaminating negative training samples during model learning. On the
other hand, spatial regularization deployed in many recent CF trackers plays a
similar role as cosine window by enforcing spatial penalty on CF coefficients.
Therefore, we in this paper investigate the feasibility to remove cosine window
from CF trackers with spatial regularization. When simply removing cosine
window, CF with spatial regularization still suffers from small degree of
boundary discontinuity. To tackle this issue, binary and Gaussian shaped mask
functions are further introduced for eliminating boundary discontinuity while
reweighting the estimation error of each training sample, and can be
incorporated with multiple CF trackers with spatial regularization. In
comparison to the counterparts with cosine window, our methods are effective in
handling boundary discontinuity and sample contamination, thereby benefiting
tracking performance. Extensive experiments on three benchmarks show that our
methods perform favorably against the state-of-the-art trackers using either
handcrafted or deep CNN features. The code is publicly available at
https://github.com/lifeng9472/Removing_cosine_window_from_CF_trackers.Comment: 13 pages, 7 figures, submitted to IEEE Transactions on Image
Processin
Cournot oligopoly game-based local energy trading considering renewable energy uncertainty costs
Benchmark Dataset and Effective Inter-Frame Alignment for Real-World Video Super-Resolution
Video super-resolution (VSR) aiming to reconstruct a high-resolution (HR)
video from its low-resolution (LR) counterpart has made tremendous progress in
recent years. However, it remains challenging to deploy existing VSR methods to
real-world data with complex degradations. On the one hand, there are few
well-aligned real-world VSR datasets, especially with large super-resolution
scale factors, which limits the development of real-world VSR tasks. On the
other hand, alignment algorithms in existing VSR methods perform poorly for
real-world videos, leading to unsatisfactory results. As an attempt to address
the aforementioned issues, we build a real-world 4 VSR dataset, namely
MVSR4, where low- and high-resolution videos are captured with
different focal length lenses of a smartphone, respectively. Moreover, we
propose an effective alignment method for real-world VSR, namely EAVSR. EAVSR
takes the proposed multi-layer adaptive spatial transform network (MultiAdaSTN)
to refine the offsets provided by the pre-trained optical flow estimation
network. Experimental results on RealVSR and MVSR4 datasets show the
effectiveness and practicality of our method, and we achieve state-of-the-art
performance in real-world VSR task. The dataset and code will be publicly
available
Synthesis and fungicidal activity of pyrazole derivatives containing 1,2,3,4-tetrahydroquinoline
Additional file 3. Structural information (CIF) for Compound 10g
Directory of English/Chinese Names of Scholars in Chinese Studies - 海外中国研究学者名录(英中对照)
The Directory of English/Chinese Names of Scholars in Chinese Studies was a by-product of the "Chinese Studies in North America - Research and Resources" project. It provides both the English and the Chinese names of scholars involved in Chinese Studies mainly in North America. The Chinese names for western scholars resulted from an extensive in the relevant literature and on the internet at appropriate sites to find and authenticate the Chinese names used by these scholars. Where we could not find the Chinese name adopted by a scholar, we have transliterated their name into Chinese characters using the standard reference book 英语姓名译名手册. It is hoped that this directory will be useful for people needing to search for the Chinese names used by western scholars, or for the standard transliterations of their names into Chinese characters. Corrections of inaccurate information and addition of new names of Chinese Studies scholars worldwide are welcome. For corrections, comments and updates, please send emails to Haihui Zhang (Librarian for Chinese studies at East Asian Library, University Library System at University of Pittsburgh) at [email protected]
- …