• Advanced Imaging
  • Vol. 2, Issue 4, (2025)
Ye Zitong, Huang Yuran, Ye Hanchu, He Enxing, Sun Yile, Zhou Haoyu, Luo Xin, Han Yubing, Kuang Cuifang, Liu Xu
Author Affiliations
  • China
  • Zhejiang University
  • show less

    Abstract

    Super-resolution optical fluctuation imaging (SOFI) achieves super-resolution (SR) imaging through simple hardware configurations while maintaining biological compatibility. However, the realization of large field-of-view (FOV) SOFI imaging remains fundamentally limited by extensive temporal sampling demands. Although modern SOFI techniques accelerate the acquisition speed, they require stringent fluorescent labeling conditions, which severely limit the practical implementation. For this, we present a novel framework that resolves the trade-off in SOFI by enabling millisecond-scale temporal resolution while retaining all merits of SOFI. We named the framework as TRUS (Transformer-based Reconstruction of Ultra-fast SOFI), a novel architecture combining transformer-based neural networks with physics-informed priors in conventional SOFI frameworks. For biological specimens with diverse fluorophore blinking characteristics, our method enables reconstruction using only 20 raw frames and the corresponding widefield images, which achieves a 47-fold reduction in raw frames (compared to the traditional methods that require more than 1,000 frames) and sub-200 nm spatial resolution capability. To demonstrate the high-throughput SR imaging ability of our method, we perform SOFI imaging on the microtubule within a large FOV of 1.0 mm² with total acquisition times of ~3 minutes. These characteristics enable TRUS to be a useful high-throughput SR imaging alternative in challenging imaging conditions.
    Manuscript Accepted: Jun. 10, 2025
    Posted: Jul. 3, 2025