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Issue No.05 - September/October (2010 vol.16)
pp: 870-879
Hui Lou , Texas A&M University, College Station
Jinxiang Chai , Texas A&M University, College Station
With the proliferation of motion capture data, interest in removing noise and outliers from motion capture data has increased. In this paper, we introduce an efficient human motion denoising technique for the simultaneous removal of noise and outliers from input human motion data. The key idea of our approach is to learn a series of filter bases from precaptured motion data and use them along with robust statistics techniques to filter noisy motion data. Mathematically, we formulate the motion denoising process in a nonlinear optimization framework. The objective function measures the distance between the noisy input and the filtered motion in addition to how well the filtered motion preserves spatial-temporal patterns embedded in captured human motion data. Optimizing the objective function produces an optimal filtered motion that keeps spatial-temporal patterns in captured motion data. We also extend the algorithm to fill in the missing values in input motion data. We demonstrate the effectiveness of our system by experimenting with both real and simulated motion data. We also show the superior performance of our algorithm by comparing it with three baseline algorithms and to those in state-of-art motion capture data processing software such as Vicon Blade.
Motion capture, data-driven character animation, motion denoising, statistical motion models, numerical optimization.
Hui Lou, Jinxiang Chai, "Example-Based Human Motion Denoising", IEEE Transactions on Visualization & Computer Graphics, vol.16, no. 5, pp. 870-879, September/October 2010, doi:10.1109/TVCG.2010.23
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