Author

Ling-Yun Qiu

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Preprint Sep 2026

Reconstruction and Range Characterization for a Directional Confocal Non-Line-of-Sight Imaging Model

We study the reconstruction of a directional albedo field from confocal non-line-of-sight measurements. For mirror-symmetric vector fields in Sobolev spaces, radial preprocessing reduces the data to spherical means of the divergence with centers on the relay wall. Full data determine this divergence uniquely, with dive...

Ling-Yun Qiu, Zuo-Qiang Shi, Jian-Yu Wang et al. · 0 citations

Preprint Sep 2026

SWAP: A Scalable, Warm-Startable, Anytime Permutation Solver for Optimal Transport

Large-scale and high-dimensional discrete optimal transport often involves a tension between scalability and exact assignment feasibility: many scalable approaches optimize relaxed, factorized, or sparse transport plans rather than maintaining a one-to-one assignment throughout optimization. We introduce SWAP, an itera...

Xue-Kai Jiang, Zheng'ao Liu, Ling-Yun Qiu et al. · 0 citations