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Video stabilization: digital and mechanical approaches
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index.pdf
Date
2008
Author
Bayrak, Serhat
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General video stabilization techniques which are digital, mechanical and optical are discussed. Under the concept of video stabilization, various digital motion estimation and motion correction algorithms are implemented. For motion estimation, in addition to digital approach, a mechanical approach is implemented also. Then all implemented motion estimation and motion correction algorithms are compared with respect to their computational times and accuracies over various videos. For small amount of jitter, digital motion estimation performs well in real time. But for big amount of motion, digital motion estimation takes very long time so for these cases mechanical motion estimation is preferred due to its speed in estimation although digital motion estimation performs better. Thus, when mechanical motion estimation is used first and then this estimate is used as the initial estimate for digital motion estimation, the same accuracy as digital estimation is obtained in approximately the same time as mechanical estimation. For motion correction Kalman and Fuzzy filtering perform better than lowpass and moving average filtering.
Subject Keywords
Electrical engineering.
,
Computer Hardware.
URI
http://etd.lib.metu.edu.tr/upload/12610172/index.pdf
https://hdl.handle.net/11511/18136
Collections
Graduate School of Natural and Applied Sciences, Thesis
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S. Bayrak, “Video stabilization: digital and mechanical approaches,” M.S. - Master of Science, Middle East Technical University, 2008.
