1. Articles from Hongshan Liu

    1-2 of 2
    1. Multi-scale reconstruction of undersampled spectral-spatial OCT data for coronary imaging using deep learning

      Multi-scale reconstruction of undersampled spectral-spatial OCT data for coronary imaging using deep learning

      Coronary artery disease (CAD) is a cardiovascular condition with high morbidity and mortality. Intravascular optical coherence tomography (IVOCT) has been considered as an optimal imagining system for the diagnosis and treatment of CAD. Constrained by Nyquist theorem, dense sampling in IVOCT attains high resolving power to delineate cellular structures/features. There is a trade-off between high spatial resolution and fast scanning rate for coronary imaging. In this paper, we propose a viable spectral-spatial acquisition method that down-scales the sampling process in both spectral and spatial domain while maintaining high quality in image reconstruction. The down-scaling schedule boosts data acquisition speed ...

      Read Full Article
    2. Inpainting for Saturation Artifacts in Optical Coherence Tomography using Dictionary-based Sparse Representation

      Inpainting for Saturation Artifacts in Optical Coherence Tomography using Dictionary-based Sparse Representation

      Saturation artifacts in optical coherence tomography (OCT) occur when received signal exceeds the dynamic range of spectrometer. Saturation artifact shows a streaking pattern and could impact the quality of OCT images, leading to inaccurate medical diagnosis. In this paper, we automatically localize saturation artifacts and propose an artifact correction method via inpainting. We adopt a dictionary-based sparse representation scheme for inpainting. Experimental results demonstrate that, in both case of synthetic artifacts and real artifacts, our method outperforms interpolation method and Euler's elastica method in both qualitative and quantitative results. The generic dictionary offers similar image quality when applied to ...

      Read Full Article
    1-2 of 2
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Topics in the News

    1. (2 articles) University of Alabama
    2. (1 articles) Mount Sinai School of Medicine
    3. (1 articles) Shanghai Jiao Tong University
    4. (1 articles) National Institutes of Health
    5. (1 articles) University of Tübingen
    6. (1 articles) Stanford University
    7. (1 articles) Johns Hopkins University
    8. (1 articles) University of Rochester
  3. Popular Articles

  4. Picture Gallery

    Inpainting for Saturation Artifacts in Optical Coherence Tomography using Dictionary-based Sparse Representation Multi-scale reconstruction of undersampled spectral-spatial OCT data for coronary imaging using deep learning Optical coherence tomography findings in patients with transfusion-dependent β-thalassemia Higher-order regression three-dimensional motion-compensation method for real-time optical coherence tomography volumetric imaging of the cornea Optical coherence tomography image based eye disease detection using deep convolutional neural network Optical Coherence Tomography Biomarkers in Predicting Treatment Outcomes of Diabetic Macular Edema After Dexamethasone Implants Macular and Optic Disc Parameters in Children with Amblyopic and Nonamblyopic Eyes under Optical Coherence Tomography Fundus Images Optical coherence tomography assessment of the enamel surface after debonding the ceramic brackets using three different techniques Optical Engineering Opening at Aeon Imaging PhD Position for Uncertainty-aware AI-based Predictive Model for Treatment Decision Making at University of Amserdam Schizophrenia in Translation: Why the Eye? Advances in OCT Imaging in Myopia and Pathologic Myopia