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We demonstrate pixelation-free real-time widefield endoscopic imaging through an aperiodic multicore fiber (MCF) without any distal opto-mechanical elements or proximal scanners. Exploiting the memory effect in MCFs the images in our system…

Single-mode optical fibers (SMFs) have become the backbone of modern communication systems. However, their throughput is expected to reach its theoretical limit in the nearest future. Utilization of multimode fibers (MMFs) is considered as…

Neural and Evolutionary Computing · Computer Science 2022-09-30 Ivan Chuprov , Dmitry Efremenko , Jiexing Gao , Pavel Anisimov , Viacheslav Zemlyakov

Ultrathin multimode fibers (MMFs) promise endoscopes with hair-scale diameters for accessing sub-millimeter anatomy, but in MMF far-field imaging the required small collection aperture drives speckle-dominated measurements that rapidly…

Optics · Physics 2026-01-21 Xianrui Zeng , Yirui Zang , Pengfei Liu , Fei Yu , Yang Yang , Tomáš Čižmár , Yang Du

With the advent of neuroimaging and microsurgery, there is a rising need for capturing images through an optical fiber. We present an approach of imaging through a single fiber without mechanical scanning by implementing spatial-spectral…

Space-division multiplexing is a promising technology in optical fibre communication to improve the transmission capacity of a single optical fibre. However, the number of channels that can be multiplexed is limited by the crosstalks…

Optics · Physics 2020-02-06 Pengfei Fan , Michael Ruddlesden , Yufei Wang , Luming Zhao , Chao Lu , Lei Su

Multimodal image fusion (MMIF) integrates information from different modalities to obtain a comprehensive image, aiding downstream tasks. However, existing research focuses on complementary information fusion and training strategies,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Dan He , Guofen Wang , Weisheng Li , Yucheng Shu , Wenbo Li , Lijian Yang , Yuping Huang , Feiyan Li

The lensless endoscope (LE) is a promising device to acquire in vivo images at a cellular scale. The tiny size of the probe enables a deep exploration of the tissues. Lensless endoscopy with a multicore fiber (MCF) commonly uses a spatial…

The input numerical aperture (NA) of multimode fiber (MMF) can be effectively increased by placing turbid media at the input end of the MMF. This provides the potential for high-resolution imaging through the MMF. While the input NA is…

Image composition aims to seamlessly insert a user-specified object into a new scene, but existing models struggle with complex lighting (e.g., accurate shadows, water reflections) and diverse, high-resolution inputs. Modern text-to-image…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Shilin Lu , Zhuming Lian , Zihan Zhou , Shaocong Zhang , Chen Zhao , Adams Wai-Kin Kong

We present an ultra-thin hybrid imaging system based on an optical multimode fiber (MMF) and an optical fiber hydrophone that combines optical resolution photoacoustic and fluorescence microscopy. To control the illumination at the distal…

Encoding quantum information in photonic time-bin states is typically considered impractical for moving free-space quantum communication due to the difficulties with phase stabilization of distant quantum time-bin interferometers and…

As the rapid development of computer vision and the emergence of powerful network backbones and architectures, the application of deep learning in medical imaging has become increasingly significant. Unlike natural images, medical images…

Image and Video Processing · Electrical Eng. & Systems 2026-04-10 Guoqing Zhang , Jingyun Yang , Yang Li

Multimodal medical image fusion (MMIF) aims to integrate images from different modalities to produce a comprehensive image that enhances medical diagnosis by accurately depicting organ structures, tissue textures, and metabolic information.…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Tao Luo , Weihua Xu

Due to its ability to work in non-line-of-sight and low-light environments, radio frequency (RF) imaging technology is expected to bring new possibilities for embodied intelligence and multimodal sensing. However, widely used RF devices…

Image and Video Processing · Electrical Eng. & Systems 2025-04-23 Fei Shang , Haohua Du , Dawei Yan , Panlong Yang , Xiang-Yang Li

Multi-Resolution Hash Encoding (MHE), the foundational technique behind Instant Neural Graphics Primitives, provides a powerful parameterization for neural fields. However, its spatial behavior lacks rigorous understanding from a physical…

Computer Vision and Pattern Recognition · Computer Science 2026-02-12 Tianxiang Dai , Jonathan Fan

Robustness against data inconsistencies, imaging artifacts and acquisition speed are crucial factors limiting the possible range of applications for magnetic resonance imaging (MRI). Therefore, we report a novel calibrationless parallel…

Diffusion imaging is an important method in the field of neuroscience, as it is sensitive to changes within the tissue microstructure of the human brain. However, a major challenge when using MRI to derive quantitative measures is that the…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Simon Koppers , Luke Bloy , Jeffrey I. Berman , Chantal M. W. Tax , J. Christopher Edgar , Dorit Merhof

Existing deep learning methods in multimode fiber (MMF) imaging often focus on simpler datasets, limiting their applicability to complex, real-world imaging tasks. These models are typically data-intensive, a challenge that becomes more…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Jawaria Maqbool , M. Imran Cheema

Multi-Modal Image Fusion (MMIF) aims to combine images from different modalities to produce fused images, retaining texture details and preserving significant information. Recently, some MMIF methods incorporate frequency domain information…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Yixin Zhu , Long Lv , Pingping Zhang , Xuehu Liu , Tongdan Tang , Feng Tian , Weibing Sun , Huchuan Lu

Magnetic Resonance Imaging (MRI) is a noninvasive imaging technique that provides exquisite soft-tissue contrast without using ionizing radiation. The clinical application of MRI may be limited by long data acquisition times; therefore, MR…

Image and Video Processing · Electrical Eng. & Systems 2020-07-10 Shen Zhao , Lee C. Potter , Kiryung Lee , Rizwan Ahmad