Preprint
Sep 2026
Dirichlet Splatting: Differentiable Rendering for Wave-Based Inverse Problems
Wave-based coherent imaging, including terahertz tomography, synthetic-aperture acoustics, and millimeter-wave radar, forms images by Fourier-processing finite-length signals, with an exact point spread function that is not Gaussian but a Dirichlet kernel: complex-valued, oscillatory, and periodic. However, transplanti...
Xing-Yu Chen, Wu-Qiong Zhao, Xin-Yu Zhang et al.
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