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- W3164632987 abstract "We propose a novel sparse constrained formulation and from it derive a real-time optimization method for 3D human pose and shape estimation. Our optimization method, SCOPE (Sparse Constrained Optimization for 3D human Pose and shapE estimation), is orders of magnitude faster (avg. 4ms convergence) than existing optimization methods, while being mathematically equivalent to their dense unconstrained formulation under mild assumptions. We achieve this by exploiting the underlying sparsity and constraints of our formulation to efficiently compute the Gauss-Newton direction. We show that this computation scales linearly with the number of joints and measurements of a complex 3D human model, in contrast to prior work where it scales cubically due to their dense unconstrained formulation. Based on our optimization method, we present a real-time motion capture framework that estimates 3D human poses and shapes from a single image at over 30 FPS. In benchmarks against state-of-the-art methods on multiple public datasets, our framework outperforms other optimization methods and achieves competitive accuracy against regression methods. Project page with code and videos: https://sites.google.com/view/scope-human/." @default.
- W3164632987 created "2021-06-07" @default.
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- W3164632987 date "2021-10-01" @default.
- W3164632987 modified "2023-10-17" @default.
- W3164632987 title "Revitalizing Optimization for 3D Human Pose and Shape Estimation: A Sparse Constrained Formulation" @default.
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- W3164632987 doi "https://doi.org/10.1109/iccv48922.2021.01126" @default.
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