1. University of Kent

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    1. Mentioned In 209 Articles

    2. Cystoid macular edema segmentation of Optical Coherence Tomography images using fully convolutional neural networks and fully connected CRFs

      Cystoid macular edema segmentation of Optical Coherence Tomography images using fully convolutional neural networks and fully connected CRFs
      In this paper we present a new method for cystoid macular edema (CME) segmentation in retinal Optical Coherence Tomography (OCT) images, using a fully convolutional neural network (FCN) and a fully connected conditional random fields (dense CRFs). As a first step, the framework trains the FCN model to extract features from retinal layers in OCT images, which exhibit CME, and then segments CME regions using the trained model. Thereafter, dense ...
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    3. Passive optical module for polarization-sensitive optical coherence tomography systems

      Passive optical module for polarization-sensitive optical coherence tomography systems
      The paper presents a proof-of-concept polarization-sensitive swept source optical coherence tomography (OCT) system that performs measurements of the retardance as well as of the axis orientation of a linear birefringent sample. The system performs single input state polarization-sensitive OCT and employs an optical module based on optically passive elements such as two beam displacers and a Faraday rotator. Our implementation of the PS-OCT system does not need any calibration step ...
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    4. High Throughput Photonic Time Stretch Optical Coherence Tomography with Data Compression

      High Throughput Photonic Time Stretch Optical Coherence Tomography with Data Compression
      Photonic time stretch enables real time high throughput optical coherence tomography (OCT), but with massive data volume being a real challenge. In this paper, data compression in high throughput optical time stretch OCT has been explored and experimentally demonstrated. This is made possible by exploiting spectral sparsity of encoded optical pulse spectrum based on compressive sensing (CS) approach. Both randomization and integration have been implemented in the optical domain avoiding ...
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    5. Research Associate in Optical Coherence Tomography at University of Kent

      Research Associate in Optical Coherence Tomography at University of Kent
      Do you have a degree in Physics/Optics or Electrical Engineering? Do you have experience of undertaking research in an optics lab? We are looking for Research Associate in Optical Coherence Tomography. This position is supported by two grants: ADASMART, funded by ERC and NIHR at the BRC UCL Institute of Ophthalmology. Your research activity will tackle several instruments to image better tissue with emphasis on imaging the eye. Lower ...
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    6. En-face time-domain optical coherence tomography with dynamic focus for high-resolution imaging

      En-face time-domain optical coherence tomography with dynamic focus for high-resolution imaging
      Optical coherence tomography (OCT) is capable of imaging microstructures within translucid samples. A time-domain version of the OCT technology is employed here due to its compatibility with the dynamic focus (DF) procedure. DF means moving the confocal gate in synchronism with the depth scanning via the coherence gate. A DF-OCT setup was implemented for imaging samples at 1300 nm. Its confocal gate of 180 m 180m allows the achievement of ...
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    7. Effects of Temperature Variations during Sintering of Metal Ceramic Tooth Prostheses Investigated Non-Destructively with Optical Coherence Tomography

      Effects of Temperature Variations during Sintering of Metal Ceramic Tooth Prostheses Investigated Non-Destructively with Optical Coherence Tomography
      Calibration loss of ovens used in sintering metal ceramic prostheses leads to stress and cracks in the material of the prostheses fabricated, and ultimately to failure of the dental treatment. Periodic calibration may not be sufficient to prevent such consequences. Evaluation methods based on firing supplemental control samples are subjective, time-consuming, and rely entirely on the technicians skills. The aim of this study was to propose an alternative procedure for ...
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    8. Scalable Parallel Optimization of Digital Signal Processing in the Fourier Domain (Thesis)

      Scalable Parallel Optimization of Digital Signal Processing in the Fourier Domain (Thesis)
      The aim of the research presented in this thesis is to study different approaches to the parallel optimization of digital signal processing algorithms and optical coherence tomography methods. The parallel approaches are based on multithreading for multi-core and many-core architectures. The thesis follows the process of designing and implementing the parallel algorithms and programs and their integration into optical coherence tomography systems. Evaluations of the performance and the scalability of ...
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    9. Opportunity Research Assistant/Associate in Biophotonics and Endoscopic Imaging at Imperial College London

      Opportunity Research Assistant/Associate in Biophotonics and Endoscopic Imaging at Imperial College London
      Job Title: Research Assistant/Associate in Biophotonics and Endoscopic Imaging Department/Division/Faculty: The Hamlyn Centre for Robotic Surgery in association with Department of Computing, Faculty of Engineering Department of Surgery and Cancer, Faculty of Medicine Advert: Research Assistant salary: 31,740 to 33,370 per annum Research Associate salary: 36,070 to 43,350 per annum S outh Kensington Campus Fixed term appointment until 31 st May 2019 Applicants ...
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    10. A comparative study of noise in supercontinuum light sources for ultra-high resolution optical coherence tomography at 1300 nm

      A comparative study of noise in supercontinuum light sources for ultra-high resolution optical coherence tomography at 1300 nm
      Supercontinuum (SC) light is a well-established technology, which finds applications in several domains ranging from chemistry to material science and imaging systems [1-2]. More specifically, its ultra-wide optical bandwidth and high average power make it an ideal tool for Optical Coherence Tomography (OCT). Over the last 5 years, numerous examples have demonstrated its high potential [3-4] in this context. However, SC light sources present pulse-to-pulse intensity variation that can limit ...
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    11. 2nd Canterbury Conference on Optical Coherence Tomography (emphasis on broadband optical sources) September 2017

      2nd Canterbury Conference on Optical Coherence Tomography (emphasis on broadband optical sources) September 2017
      This 3 day conference will be dedicated to recent advances in measurement and imaging conditioned by progress in enlarging the spectrum of the optical source. The larger the bandwidth of the broadband optical source used in spectrometer based OCT, and of the tuning bandwidth of swept lasers used in swept source OCT, the better the axial resolution. However, an increase in the source bandwidth brings with it other problems that ...
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    12. Polarization-sensitive plug-in optical module for a Fourier-domain optical coherence tomography system

      Polarization-sensitive plug-in optical module for a Fourier-domain optical coherence tomography system
      In this manuscript we communicate a theoretical study on a plug-in optical module to be used within a Fourier-domain optical coherence tomography system (FD-OCT). The module can be inserted between the object under investigation and any single-mode fiber based FD-OCT imaging instrument, enabling the latter to carry out polarization measurements on the former. Similarly to our previous communication1 this is an active module which requires two sequential steps to perform ...
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    13. Master/slave: the ideal tool for coherence revival based optical coherence tomography imaging instruments

      Master/slave: the ideal tool for coherence revival based optical coherence tomography imaging instruments
      In this communication, we present the utility of the Master/Slave (MS) method in combination with the coherence revival technique to obtain full axial range Optical Coherence Tomography (OCT) cross-section images. The MS method eliminates two major drawbacks of the conventional Fourier Transformed (FT) based OCT technology when applied to the coherence revival technique: the need of data re-sampling as well as the need to compensate for unbalanced dispersion in ...
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    14. 7th International Conference on Lasers in Medicine: Advanced Laser Technologies in the Hands of Medicine July 2017 Timisoara, Romania

      7th International Conference on Lasers in Medicine: Advanced Laser Technologies in the Hands of Medicine July 2017 Timisoara, Romania
      7th international conference on lasers in medicine in connection with international congress of lasers in dentistry. Advanced laser technologies in the hands of medicine. July 13015 Timisoara, Romania. For more information click here .
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    15. 1-15 of 209 1 2 3 4 ... 12 13 14 »
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  2. About University of Kent

    University of Kent

    University of Kent is a UK higher education institution founded in 1965 and funded by the Higher Education Funding Council for England. There are campus at Cantebury (main campus), Medway, Brussels, Tonbridge, and Transmache.  The Applied Optics Group at the University of Kent school of physical sciences. Research areas include: Optical sensors, Optical fibre sensors, Medical sensors and imaging, Optical coherence tomography, Adaptive optics, Components for optical communications and sensors, Theory, Electro-optical, acousto-optical micro-structures, and Forensics.