1. Articles from Peng Lee

    1-2 of 2
    1. Speckle properties of the logarithmically transformed signal in optical coherence tomography

      Speckle properties of the logarithmically transformed signal in optical coherence tomography

      We discuss the statistical properties of speckle of the logarithmically transformed signal in optical coherence tomography (OCT) both theoretically and experimentally. OCT signals of Intralipid solution with different volume particle concentrations ρ (correspondingly, scattering coefficient μs ranges from 1.25 to 25.11 mm−1) were measured and analyzed under two different focusing conditions [numerical apertures (NAs) of the objective lens of 0.13 and 0.25]. We found that the effect of the speckle noise can be suppressed by displaying OCT images in the logarithmic scale and by using the objective lens with a higher NA. We also found that ...

      Read Full Article
    2. Performance of single-scattering model versus multiple-scattering model in the determination of optical properties of biological tissue with optical coherence tomography

      Performance of single-scattering model versus multiple-scattering model in the determination of optical properties of biological tissue with optical coherence tomography

      Tissue optical properties can be determined with optical coherence tomography (OCT) by fitting a model to the OCT signal. Using calibrated samples in the fixed focus geometry, the validity of the single-scattering and multiple-scattering models for both highly scattering and weakly scattering media (scattering coefficients μs ranging from 1.25 to 25.11mm−1) has been investigated. The results show that, with a proper correction for the confocal properties of the sample arm, both models are appropriate to extract the scattering coefficients of weakly scattering media. For highly scattering media, the multiple scattering should be taken into account, and the ...

      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) Nanjing University of Science and Technology
    2. (2 articles) Wanrong Gao
  3. Popular Articles

  4. Picture Gallery

    Performance of single-scattering model versus multiple-scattering model in the determination of optical properties of biological tissue with optical coherence tomography Speckle properties of the logarithmically transformed signal in optical coherence tomography Medical treatment of inflammatory punctual stenosis monitored by anterior segment optical coherence tomography Development and Validation of a Deep Learning System for Diagnosing Glaucoma Using Optical Coherence Tomography Methylene blue-filled biodegradable polymer particles as a contrast agent for optical coherence tomography Optical coherence tomography for thyroid pathology: 3D analysis of tissue microstructure Mathematical Analysis of Texture Indicators for the Segmentation of Optical Coherence Tomography Images Comparison of Current Optical Coherence Tomography Angiography Methods in Imaging Retinal Hemangioblastomas New findings useful for clinical practice using swept-source optical coherence tomography angiography in the follow-up of active ocular toxoplasmosis Ultrafast-laser ablation of polymer multicore fibers enhances biomedical sensing Optical Coherence Tomography Angiography Findings in Optic Nerve Sheath Meningioma Massachusetts General Hospital Receives NIH Grant for Less Invasive Assessment of Inflammation and Subepithelial Remodeling in Eosinophlic Esophagitis Patients