Advanced

Video Stabilization Algorithm from Low Frame Rate Video for Hyperlapse Applications

Hansson, Björn LU and Tengbom Zetterman, Kim LU (2015) In Master’s Theses in Mathematical Sciences FMA820 20151
Mathematics (Faculty of Engineering)
Abstract
There are several methods that one can use to visualize image sequences. One such method, called timelapse, is based on synthesizing a video from the image sequence. One sub category of timelapses is the so-called hyperlapse, which is defined as a timelapse with a camera movement over great space. A problem with combining camera movement with speeding up the frame rate per second is that camera shakes appear magnified. One way to minimize this problem is to stabilize the video, using estimated relative camera movement. Such estimates can be obtained using computer vision methods based on epipolar geometry. Choosing how to compensate for camera shakes and calculate a new, more smooth camera path is essential to the video stabilization... (More)
There are several methods that one can use to visualize image sequences. One such method, called timelapse, is based on synthesizing a video from the image sequence. One sub category of timelapses is the so-called hyperlapse, which is defined as a timelapse with a camera movement over great space. A problem with combining camera movement with speeding up the frame rate per second is that camera shakes appear magnified. One way to minimize this problem is to stabilize the video, using estimated relative camera movement. Such estimates can be obtained using computer vision methods based on epipolar geometry. Choosing how to compensate for camera shakes and calculate a new, more smooth camera path is essential to the video stabilization algorithm. One aim of this thesis is to create such a video stabilization algorithm. Another aim is to examine how performance degrades with decreased frame rate for the input sequence. Along with this thesis we have collected a set of benchmark image sequences. Several different video stabilization algorithms have been developed in the project. These have all been tested on the benchmark data sets and evaluated with promising results. (Less)
Popular Abstract (Swedish)
I dagens samhälle är vi alltmer ivriga att dokumentera och dela våra upplevelser och vår vardag med andra genom sociala medier. Ett nytt sätt att göra detta har utvecklats av Narrative som med sin smidiga kamera, vilken kan fästas på dina kläder, erbjuder dig ett verktyg att dokumentera händelser utan att du behöver anstränga dig. Men om man vill presentera bilderna som en video, går det? Det är frågan som har legat bakom vårt examensarbete.
Please use this url to cite or link to this publication:
author
Hansson, Björn LU and Tengbom Zetterman, Kim LU
supervisor
organization
course
FMA820 20151
year
type
H2 - Master's Degree (Two Years)
subject
keywords
computer vision, mathematics, hyperlapse, video stabilization, epipolar geometry
publication/series
Master’s Theses in Mathematical Sciences
report number
LUTFMA-3274-2015
ISSN
1404-6342
other publication id
2015:E14
language
English
id
5462251
date added to LUP
2015-06-18 12:05:43
date last changed
2015-06-18 12:05:43
@misc{5462251,
  abstract     = {There are several methods that one can use to visualize image sequences. One such method, called timelapse, is based on synthesizing a video from the image sequence. One sub category of timelapses is the so-called hyperlapse, which is defined as a timelapse with a camera movement over great space. A problem with combining camera movement with speeding up the frame rate per second is that camera shakes appear magnified. One way to minimize this problem is to stabilize the video, using estimated relative camera movement. Such estimates can be obtained using computer vision methods based on epipolar geometry. Choosing how to compensate for camera shakes and calculate a new, more smooth camera path is essential to the video stabilization algorithm. One aim of this thesis is to create such a video stabilization algorithm. Another aim is to examine how performance degrades with decreased frame rate for the input sequence. Along with this thesis we have collected a set of benchmark image sequences. Several different video stabilization algorithms have been developed in the project. These have all been tested on the benchmark data sets and evaluated with promising results.},
  author       = {Hansson, Björn and Tengbom Zetterman, Kim},
  issn         = {1404-6342},
  keyword      = {computer vision,mathematics,hyperlapse,video stabilization,epipolar geometry},
  language     = {eng},
  note         = {Student Paper},
  series       = {Master’s Theses in Mathematical Sciences},
  title        = {Video Stabilization Algorithm from Low Frame Rate Video for Hyperlapse Applications},
  year         = {2015},
}