Perceptually Guided Fast Compression of 3-D Motion Capture Data

A time efficient compression technique, incorporating attention stimulating factors, for motion capture data is proposed. Compression ratios of 25:1 to 30:1 can be achieved with very little noticeable degradation in perceptual quality of animation. Experimental analysis shows that the proposed algorithm is much faster than comparable approaches using wavelets, thereby making our approach feasible for motion capture, transmission, and real-time synthesis on mobile devices, where processing power and memory capacity are limited.

[1]  Nathan W. Twyman,et al.  Proposing the Interactivity-Stimulus-Attention Model (ISAM) to Explain and Predict Enjoyment, Immersion, and Adoption of Purely Hedonic Systems , 2007 .

[2]  Ronald A. Rensink,et al.  Obscuring length changes during animated motion , 2004, SIGGRAPH 2004.

[3]  Nicolas Courty,et al.  Motion Compression using Principal Geodesics Analysis , 2009, Comput. Graph. Forum.

[4]  David A. Forsyth,et al.  Knowing when to put your foot down , 2006, I3D '06.

[5]  Rafael C. González,et al.  Digital image processing, 3rd Edition , 2008 .

[6]  Nancy S. Pollard,et al.  Perceptual metrics for character animation: sensitivity to errors in ballistic motion , 2003, ACM Trans. Graph..

[7]  William T. Freeman,et al.  Presented at: 2nd Annual IEEE International Conference on Image , 1995 .

[8]  James M. Rehg,et al.  A data-driven approach to quantifying natural human motion , 2005, SIGGRAPH '05.

[9]  Joshua G. Hale,et al.  Visual Perception of Humanoid Movement , 2003 .

[10]  Okan Arikan Compression of motion capture databases , 2006, SIGGRAPH 2006.

[11]  Irene Cheng,et al.  Quality metric for approximating subjective evaluation of 3-D objects , 2005, IEEE Transactions on Multimedia.

[12]  U. Gudukbay,et al.  Keyframe Reduction Techniques for Motion Capture Data , 2008, 2008 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video.

[13]  Françoise J. Prêteux,et al.  Optimized MPEG-4 animation encoder for motion capture data , 2007, Web3D '07.

[14]  Philippe Beaudoin,et al.  Adapting wavelet compression to human motion capture clips , 2007, GI '07.

[15]  Sheila S. Hemami,et al.  Perceptual quantization for wavelet-based image coding , 2000, Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101).