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New ptychography method reconstructs images without position data

By PulseAugur Editorial · [1 sources] ·

Researchers have developed a novel method for image reconstruction called position-blind ptychography, which can recover images even without knowing the exact positions of the measurements. This technique is particularly relevant for single-particle X-ray imaging where particles are randomly oriented and their positions are unknown. The study demonstrates the viability of this approach using a simulated 2D variant, employing data-driven variational inference with score-based diffusion models as a strong prior, and shows successful reconstructions under measurement noise. AI

IMPACT Introduces a novel reconstruction technique that could advance imaging in fields like X-ray microscopy.

RANK_REASON The cluster contains an academic paper detailing a new method for image reconstruction. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv cs.LG →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

New ptychography method reconstructs images without position data

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The cluster contains an academic paper detailing a new method for image reconstruction. [lever_c_demoted from research: ic=1 ai=1.0]
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COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · Simon Welker, Lorenz Kuger, Tim Roith, Berthy Feng, Martin Burger, Timo Gerkmann, Henry Chapman ·

    Position-Blind Ptychography: Viability of image reconstruction via data-driven variational inference

    arXiv:2509.25269v3 Announce Type: replace-cross Abstract: In this work, we present and investigate the novel blind inverse problem of position-blind ptychography, i.e., ptychographic phase retrieval without any knowledge of scan positions, which then must be recovered jointly wit…

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