Boyuan Peng

I received my M.S. in Electronic and Information Engineering from Tsinghua University in 2025, advised by Prof. Peiwu Qin. Previously, I earned my B.E. in Electronic and Information Engineering at China University of Mining and Technology.

My research connects multimodal AI, generative modeling and computational imaging, including audio-visual perception, physics-guided image restoration and reliable biomedical AI. My latest project, MundiSense v1, brings voice and facial expression together as Mundiscope’s first perception layer for human-centered interaction, with explicit uncertainty.

Boyuan Peng in front of snow-covered mountains
News

  • Oct. 2026 MundiSense v1 introduces Mundiscope’s audio-visual perception layer. Explore the 1 min 44 s recorded demo, technical report and research code.
  • Jun. 2025 I completed my M.S. in Electronic and Information Engineering at Tsinghua University.
  • Sep. 2024 Our paper on cell segmentation under optical aberrations was published in CSBJ.

  • Education
    Tsinghua University
    2022.09 - 2025.06
    M.S. in Electronic and Information Engineering
    Research Advisor: Prof. Peiwu Qin
    China University of Mining and Technology
    2017.09 - 2021.06
    B.E. in Electronic and Information Engineering
    Research & Projects

    † Equal contribution. The latest project is highlighted.

    My work spans multimodal LLMs, generative modeling and reliable AI for scientific and medical applications. See also Google Scholar.

    Actual MundiSense demo excerpt: an EmotionTalk speaker and recorded audio-visual model predictions. Demo excerpt · recorded replay
    MundiSense v1: Audio-visual emotion perception
    Boyuan Peng · Mundiscope · 洞悉尘世
    Project / Demo / Report / Code
    2026 · Research release

    A first sense for human interaction.

    Bringing voice and facial expression together, with room for uncertainty. MundiSense v1 is Mundiscope’s Sense layer for Chinese-language, single-person interaction: a LoRA-adapted Qwen2.5-Omni-7B combines with HuBERT and CLIP specialists to estimate observable expression, route missing inputs and abstain when evidence is uncertain. Sense → Remember → Express is the broader direction; memory and expressive response remain future work.

    • Multimodal LLMs
    • Affective Computing
    • Audio-Visual Fusion
    • Uncertainty-Aware AI

    EmotionTalk R3: macro-F1 0.645 on 1,929 utterances, without threshold rejection. CH-SIMS v2: sentiment Pearson r = 0.792 on 976 media-available clips of 1,034. These measure different tasks; expression estimates do not establish a person’s inner state.

    Illustration of microscopy, optical aberrations, PSF guidance and cell instance segmentation.
    Practical guidelines for cell segmentation models under optical aberrations in microscopy
    Boyuan Peng†, Jiaju Chen†, P. Bilha Githinji†, Ijaz Gul, et al.
    Paper / PDF / Code
    2024 · Computational and Structural Biotechnology Journal

    A robustness benchmark for cell instance segmentation under simulated optical aberrations in fluorescence and bright-field microscopy. The study compares segmentation architectures and Cellpose 2.0, and introduces PLCM to identify aberration properties from point spread functions.

    • Robustness Benchmarking
    • Distribution Shift
    • Cell Instance Segmentation
    • Optical Priors

    DynamicNuclearNet + LIVECell · Optical priors · Model-selection guidelines

    Illustration of PSF-conditioned diffusion for restoration of aberrated microscopy images.
    PSF-guided conditional diffusion for microscopy aberration correction
    Boyuan Peng, Jiaju Chen, et al.

    Research project

    Exploring point spread functions as physical conditioning for diffusion-based restoration of aberrated microscopy images. The goal is to recover cellular structure and boundaries while incorporating knowledge of the optical imaging process.

    • Diffusion Models
    • Physics-Guided Generative AI
    • Conditional Image Restoration

    Physical embedding · Conditional diffusion · Microscopy restoration

    Illustration of coaxial ophthalmic optics, fundus and refractive imaging, alignment and image fusion.
    Dual-Modality Computational Ophthalmic Imaging with Deep Learning and Coaxial Optical Design
    Boyuan Peng†, Jiaju Chen†, Yiwei Zhang†, Cuiyi Peng, et al.
    Preprint / PDF
    2025 · arXiv preprint

    A coaxial optical platform combines fundus imaging and refractive sensing. Learning-based pupil localization supports alignment, while retinal vessel segmentation and multimodal learning connect optical measurements with ophthalmic screening research.

    • Multimodal Learning
    • Medical Image Segmentation
    • Learning-Assisted Optics

    Coaxial optics · Automated alignment · Retinal vessel analysis

    Illustration of chest X-ray classification with ConvNeXt-Tiny and Score-CAM attribution.
    Convolutional neural networks for rapid diagnosis and lesion detection of pediatric mycoplasma pneumoniae pneumonia using chest X-rays
    Jiaming Deng†, Danqing Yu†, Boyuan Peng†, Dongmei Yu†, et al.
    PDF
    Research manuscript

    ConvNeXt-Tiny distinguishes mycoplasma, bacterial and viral pneumonia from normal pediatric chest X-rays. Score-CAM highlights regions associated with model predictions, with an Android application prototype for exploring results.

    • Explainable AI
    • ConvNeXt
    • Medical Image Classification
    • Model Attribution

    Reported test accuracy: 88.20% · AUROC: 0.9218 · Four-class research evaluation

    Illustration of near-infrared coal spectroscopy and PSO–ELM prediction of material properties.
    Intelligent proximate analysis of coal based on near-infrared spectroscopy
    Weinan Liu, Boyuan Peng, Xiaoyu Liu, et al.
    Paper / PDF
    2021 · Journal of Applied Spectroscopy

    Near-infrared spectra provide a rapid, nondestructive route to estimating moisture, volatile matter and calorific value. The study compares random forests, extreme learning machines and particle-swarm-optimized ELM regression.

    • Scientific Machine Learning
    • Spectral Regression
    • Swarm Optimization

    Near-infrared spectroscopy · PSO–ELM · Material characterization


    Project Links

    Research projects and their resources.

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    Service and Teaching

  • Teaching Assistant: Spectrum and Microscopy, Tsinghua University, Fall 2023

  • Awards and Honors

  • 2024: Innovation and Entrepreneurship Award, Tsinghua University (Top 10%)
  • 2023–2024: Second-class School Scholarship, Tsinghua University
  • 2017–2018 and 2018–2019: Second-class School Scholarship, CUMT
  • Pets 🐾

    A small corner for my two cats, who keep me company beyond academia.

    Cats

    66, a Ragdoll cat wearing a colorful collar

    66

    Birthday
    Breed
    Ragdoll
    77, a golden-and-white kitten beside a mesh enclosure

    77

    Birthday
    Coat
    Golden and white (bicolor)
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