[1] Microsoft Res USA, Redmond, WA USA
[2] Arizona State Univ, Off Knowledge Enterprise Dev, Tempe, AZ USA
[3] Tech Univ Catalonia, Area Digital Signal & Image Proc, Barcelona, Spain
[4] Simon Fraser Univ, Sch Comp Sci, Network Syst Lab, Surrey, BC, Canada
[5] Eastman Kodak Co, Penfield, NY USA
[6] Univ Alberta, Dept Elect Engn, Calgary, AB, Canada
[7] Univ Alberta, Multimedia Comp & Commun Lab, Calgary, AB, Canada
[8] Arizona State Univ, Ctr Cognit Ubiquitous Comp CUbiC, Tempe, AZ USA