scholarly journals Fast Motion Deblurring for Feature Detection and Matching Using Inertial Measurements

Author(s):  
Janne Mustaniemi ◽  
Juho Kannala ◽  
Simo Sarkka ◽  
Jiri Matas ◽  
Janne Heikkila
2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Eunsung Lee ◽  
Eunjung Chae ◽  
Hejin Cheong ◽  
Joonki Paik

This paper presents an image deblurring algorithm to remove motion blur using analysis of motion trajectories and local statistics based on inertial sensors. The proposed method estimates a point-spread-function (PSF) of motion blur by accumulating reweighted projections of the trajectory. A motion blurred image is then adaptively restored using the estimated PSF and spatially varying activity map to reduce both restoration artifacts and noise amplification. Experimental results demonstrate that the proposed method outperforms existing PSF estimation-based motion deconvolution methods in the sense of both objective and subjective performance measures. The proposed algorithm can be employed in various imaging devices because of its efficient implementation without an iterative computational structure.


2019 ◽  
Vol 63 (3) ◽  
pp. 460-468
Author(s):  
Faming Gong ◽  
Hanbing Yue ◽  
Xiangbing Yuan ◽  
Wenjuan Gong ◽  
Tao Song

Abstract Object tracking is a very important step in building an intelligent video monitoring system that can protect people’s lives and property. In recent years, although visual tracking has made great progress in terms of speed and accuracy, there are still few real-time high-precision tracking algorithms. Although discriminative correlation filters have excellent performance in tracking speed, there are deficiencies in handling fast motion. This leads to the inability to achieve long-term stable tracking results. The long-time tracking with discriminative correlation filter (LT-DCF) was proposed to solve these deficiencies. We use larger size detection image blocks and smaller size filters to increase the proportion of real samples to solve the boundary effects of fast motion. And we combine the histogram of oriented gradient (HOG) feature detection and scale-invariant feature transform (SIFT) key point detection to solve the obstacles caused by scale variations. The detector with deep feature flow is then incorporated into the tracker to detect key frames to improve tracking accuracy. This method has achieved more than 75% of the distance accuracy and 70% of the overlapping success rate on the VOT2015 and VOT2016 datasets, and the stable tracking video length can reach 6895 frames.


2022 ◽  
pp. 1-1
Author(s):  
Nisha Varghese ◽  
Mohan Mahesh M. R. ◽  
A.N. Rajagopalan

2009 ◽  
Vol 28 (5) ◽  
pp. 1-8 ◽  
Author(s):  
Sunghyun Cho ◽  
Seungyong Lee

Author(s):  
Hyeoungho Bae ◽  
Charless C. Fowlkes ◽  
Pai H. Chou

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