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Due to high demands of accuracy and efficiency while dealing with lots of complex and ambiguous gestures, the sign language recognition is still a hard problem to vision-based systems. From depth images acquired by a recent RGB-D sensor, this paper proposes a novel methodology for the recognition of the American Sign Language hand alphabet, which is underlain by a detailed analysis of the Iterative...
3D reconstruction from partial views is one of the best practices for obtaining 3D models. It provides feedback to developers of digitalizers regarding views acquisition accuracy, and its practice reduces the cost compared to full acquisition systems. One further benefit is a testbed and research tool for 3D alignment techniques. We propose a system, called Obvious, which is designed as a modular,...
We present a method for approximate 3D point sets alignment to register surfaces with varying degrees of overlap. The approach is based on a novel technique to extract dynamically the sets of coplanar 4-points from a 3D point set which are approximately congruent. The choice of bases from one 3D set to be matched to the others for possible registration is done automatically, and it is refined dynamically...
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