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Viewpoint variation is a major challenge in video- based human action recognition. We exploit the simultaneous RGB and Depth sensing of RGB-D cameras to address this problem. Our technique capitalizes on the complementary spatio-temporal information in RGB and Depth frames of the RGB-D videos to achieve viewpoint invariant action recognition. We extract view invariant features from the dense trajectories...
The iliofemoral distraction with Wagner's apparatus was conducted in 20 adult patients with untreated unilateral congenital dislocation of the hip (Crowe group IV) before total hip arthroplasty. During the distraction period of 8 to 17 days, this technique had effectively reduced high dislocation of 4.5 cm (range, 3.5 5 cm). No pin-tract infection was encountered. Surgical difficulties in total hip...
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