Graduate Thesis Or Dissertation
 

Improving motion estimation with evolvable search algorithms

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/v118rg74m

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  • Until now the topic of motion estimation, as used in video compression, has been dominated by search methodologies which are modifications of an exhaustive search. This research takes a completely new approach by applying two evolvable search algorithms, the Genetic Algorithm and the Genetic Program, to the area of motion estimation. The main purpose of this research is to determine the applicability of evolvable search methods to the topic of motion estimation. Several methods are studied: in the first application, a Genetic Algorithm is used to determine individual motion vectors one at a time, while the second method explores the use of a Genetic Algorithm to search for all of the motion vectors to correlate two frames simultaneously. To reduce the number of motion vectors required, Genetic Programming is applied to variable block size motion estimation. Finally, this work is expanded by applying it to region motion estimation, which is not restricted to using square or rectangular motion blocks.
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