Learning motion features for example-based finger motion estimation for virtual characters

C Mousas, CN Anagnostopoulos - 3D Research, 2017 - Springer
3D Research, 2017Springer
This paper presents a methodology for estimating the motion of a character's fingers based
on the use of motion features provided by a virtual character's hand. In the presented
methodology, firstly, the motion data is segmented into discrete phases. Then, a number of
motion features are computed for each motion segment of a character's hand. The motion
features are pre-processed using restricted Boltzmann machines, and by using the different
variations of semantically similar finger gestures in a support vector machine learning …
Abstract
This paper presents a methodology for estimating the motion of a character’s fingers based on the use of motion features provided by a virtual character’s hand. In the presented methodology, firstly, the motion data is segmented into discrete phases. Then, a number of motion features are computed for each motion segment of a character’s hand. The motion features are pre-processed using restricted Boltzmann machines, and by using the different variations of semantically similar finger gestures in a support vector machine learning mechanism, the optimal weights for each feature assigned to a metric are computed. The advantages of the presented methodology in comparison to previous solutions are the following: First, we automate the computation of optimal weights that are assigned to each motion feature counted in our metric. Second, the presented methodology achieves an increase (about 17%) in correctly estimated finger gestures in comparison to a previous method.
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