1. Articles from Min Xu

    1-2 of 2
    1. Selective retinex enhancement based on the clustering algorithm and block-matching 3D for optical coherence tomography images

      Selective retinex enhancement based on the clustering algorithm and block-matching 3D for optical coherence tomography images

      It is important to enhance the contrast and remove the speckle noise for optical coherence tomography (OCT) images. In this paper, we propose a selective retinex enhancement method based on the fuzzy c-means (FCM) clustering algorithm to enhance only the structure part in OCT images and combines with the block-matching 3D (BM3D) algorithm for filtering. In the proposed selective retinex enhancement method, we first calculate the feature image of the original image, which includes the mean value and standard deviation of each pixel in the original image and its correlation image. Second, by applying the FCM clustering algorithm to the ...

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    2. Texture preservation and speckle reduction in optical coherence tomography using the shearlet-based total variation algorithm

      Texture preservation and speckle reduction in optical coherence tomography using the shearlet-based total variation algorithm

      In optical coherence tomography (OCT), speckle residue, texture loss, and edge blur are the main factors that limit the image quality improvement during speckle reduction, especially for human retinal OCT images. This paper proposes a shearlet-based total variation de-speckling framework (STV method) to address this problem. This method includes a de-speckling regularisation term, an edge-preserving regularisation term, and a fidelity term. By assigning a suitable weight to each term, speckle reduction, texture protection, and edge preservation can be adjusted to an optimal match. Based on the split Bregman iteration, a fast numerical algorithm for this method is also proposed. We ...

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    1-2 of 2
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  2. Topics in the News

    1. (3 articles) National Institutes of Health
    2. (2 articles) Tianjin University
    3. (1 articles) Massachusetts Eye and Ear Infirmary
    4. (1 articles) Centre Hospitalier Intercommunal de Créteil
    5. (1 articles) Harvard University
    6. (1 articles) University of Wisconsin
    7. (1 articles) Teresa C. Chen
    8. (1 articles) Gabriel J. Coscas
    9. (1 articles) Eric H. Souied
    10. (1 articles) Xincheng Yao
    11. (1 articles) Pei Ma
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    Texture preservation and speckle reduction in optical coherence tomography using the shearlet-based total variation algorithm Selective retinex enhancement based on the clustering algorithm and block-matching 3D for optical coherence tomography images Three-dimensional detection and quantification of defects in SiC by optical coherence tomography University of Illinois at Chicago Receives NIH Grant for Functional Tomography of Neurovascular Coupling Interactions in Healthy and Diseased Retinas Dyad Medical Receives NIH Grant for Software For OCT Analysis of Vascular Stents Oregon Health and Science University Receives NIH Grant for Application of Ultrahigh-Speed Long-Range Wide-Field OCT in Anterior Eye Diseases Optical coherence tomography and fractional flow reserve guided treatment of woven coronary artery anomaly presenting as acute myocardial infarction Impact of manual correction over automated segmentation of spectral domain optical coherence tomography The 360° circumferential opening of Schlemm's canal in normal individuals detected by enhanced depth imaging optical coherence tomography Real-Time Intraoperative Dynamics of White Cataract- Intraoperative Optical Coherence Tomography Guided Classification & Management Quantitative Optical Coherence Tomography Angiography Biomarkers in a Treat-and-Extend Dosing Regimen in Neovascular Age-Related Macular Degeneration Effect of partial posterior vitreous detachment on spectral-domain optical coherence tomography retinal nerve fibre layer thickness measurements