A5009865129- Optical Imaging and Spectroscopy Techniques
- Photoacoustic and Ultrasonic Imaging
- Antenna Design and Analysis
- Metamaterials and Metasurfaces Applications
- Optical Coherence Tomography Applications
- Advanced Antenna and Metasurface Technologies
- Optical Polarization and Ellipsometry
- Robotics and Sensor-Based Localization
- Advanced Image and Video Retrieval Techniques
- Spectroscopy Techniques in Biomedical and Chemical Research
- Optical measurement and interference techniques
- Advanced Vision and Imaging
- Digital Holography and Microscopy
- 3D Surveying and Cultural Heritage
- Industrial Vision Systems and Defect Detection
- Gut microbiota and health
- Colorectal Cancer Treatments and Studies
- Cancer Immunotherapy and Biomarkers
- Voice and Speech Disorders
- Infrared Thermography in Medicine
- Orbital Angular Momentum in Optics
- Esophageal and GI Pathology
- Environmental remediation with nanomaterials
- Cloud Data Security Solutions
- Ultrasound Imaging and Elastography
Imperial College London
2015-2024
Zhejiang University
2019-2023
Shanghai Jiao Tong University
2017-2023
Taizhou University
2019-2020
Beijing Chao-Yang Hospital
2017
Fuzhou General Hospital of Nanjing Military Command
2016
Xiamen University
2016
National Pingtung University of Science and Technology
2013
National Defense Medical Center
2006
Capital University
2005
Advances in vectorial polarization-resolved imaging are bringing new capabilities to applications ranging from fundamental physics through clinical diagnosis. Imaging polarimetry requires determination of the Mueller matrix (MM) at every point, providing a complete description an object's properties. Despite forming comprehensive representation, MM does not usually provide easily interpretable information about internal structure. Certain simpler metrics derived subsets elements. These...
Abstract Graded index (GRIN) lenses are commonly used for compact imaging systems. It is not widely appreciated that the ion-exchange process creates rotationally symmetric GRIN lens profile also causes a birefringence variation. This property usually considered nuisance, such manufacturing processes optimized to keep it minimum. Here, rather than avoiding this birefringence, we understand and harness by using in cascade with other optical components enable extra functionality commonplace We...
Liver ischemia and reperfusion (I/R) injury is characterized by defective liver autophagy accompanied alterations to the endogenous defense system. Dihydromyricetin (DHM) a natural flavonoid that demonstrates wide range of physiological functions, has been implicated as regulator autophagy. This study investigates protective effects DHM pretreatment on caused ischemia/reperfusion elucidates potential mechanism DHM-mediated protection. Mice were subjected 60 minutes followed 5 hours...
At present, there are no objective techniques to quantify and describe laryngeal obstruction, the reproducibility of subjective manual quantification methods is insufficient, resulting in diagnostic inaccuracy a poor signal-to-noise ratio medical research. In this work, workflow proposed movements from laryngoscopic videos, facilitate diagnosis procedure.The method analyses delineates glottic opening, vocal folds, supraglottic structures, using convolutional neural networks (CNNs) based...
Robot-assisted deployment of fenestrated stent grafts in Fenestrated Endovascular Aortic Repair (FEVAR) requires accurate geometrical alignment. Currently, this process is guided by 2D fluoroscopy, which uninformative and error prone. In paper, a real-time framework proposed to instantiate the 3D shape graft based on only single low-dose fluoroscopic image. Firstly, was placed with markers. Secondly, pose each segment instantiated RPnP (Robust Perspective-n-Point) method. Thirdly, whole via...
In stereoscope-based minimally invasive surgeries (MISs), dense stereo matching plays an indispensable role in 3-D shape recovery, AR, VR, and navigation tasks. Although numerous deep neural network (DNN) approaches are proposed, the conventional prior-free still popular industry because of lack open-source annotated dataset limitation task-specific pretrained DNNs. Among algorithms, there is no successful real-time algorithm none GPU environment for MIS. This article proposes first...
Tissue‐depolarization and linear‐retardance are the main polarization characteristics of interest for bulk tissue characterization, normally interpreted from Mueller polarimetry. Stokes polarimetry can be conducted using simpler instrumentation in a shorter time. Here, we use polarimetric imaging with circularly polarized illumination to assess circular‐depolarization properties tissue. Results obtained were compared transmission reflection geometry, respectively. It is found that these 2...
While polarization sensing is vital in many areas of research, with applications spanning from microscopy to aerospace, traditional approaches are limited by method-related error amplification, accumulation, and pre-processing steps, constraining the performance single-shot polarimetry. Here, we propose a measurement paradigm that circumvents these limitations, based on use universal full Poincaré generator map all analyzer states into single vectorially structured light field. All vector...
Intra-operative measurement of tissue oxygen saturation ([Formula: see text]) is important in detection ischaemia, monitoring perfusion and identifying disease. Hyperspectral imaging (HSI) measures the optical reflectance spectrum uses this information to quantify its composition, including [Formula: text]. However, real-time difficult due capture rate data processing time.An endoscopic system based on a multi-fibre probe was previously developed sparsely HSI (sHSI). These were combined with...
Intraoperative feedback on tissue function, such as blood volume and oxygenation would be useful to the surgeon in cases where current clinical practice relies subjective measures, identification of ischaemic bowel or viability during anastomosis formation. Also, surface profiling may used detect identify certain pathologies, well diagnosing aspects health gut motility. In this paper a dual modality laparoscopic system is presented that combines multispectral reflectance 3D imaging. White...
Objective: Intestinal perforation is a rare complication after liver transplantation. This study was designed to calculate the incidence and investigate outcomes of intestinal in adult transplant patients. Materials methods: The clinical records recipients between January 2014 June 2016 were obtained. calculated, high risk factors analyzed. Results: mean operative time 8.5 h (range: 6–11 h). portal vein occlusion 66.5 min 58–72 min), cold ischemia 7.9 6.5–9.5 Four (2.7%) patients developed...
Chlorinated solvents such as tetrachloroethylene (PCE) in aquifers should be remediated due to their toxicity that limited the use of groundwater resources. Nanoscale zero-valent iron (NZVI) and palladized/iron (Pd/Fe) bimetallic particles were synthesized employed react with PCE water investigate its degradation behaviors. Batch tests conducted a 1 L serum bottle under airtight anaerobic conditions parameters Pd mass contents, temperature, pH, dispersant. The results showed specific...
A zero-index metamaterial unit cell working over a wide frequency band is presented. three layer superstrate with cells arranged in 5 by array designed and placed mircostrip patch antenna U-slot for gain enhancement. The simulation results show that the of improved nearly 4 dB throughout operating band.
Graded index (GRIN) lenses focus light through a radially symmetric refractive profile. It is not widely appreciated that the ion-exchange process creates profile also causes birefringence variation. This property usually considered nuisance, such manufacturing processes are optimized to keep it minimum. Here we show this can be harnessed as basis of versatile and expandable vectorial state manipulator. Using standard GRIN in cascade with other optical components, generate various states,...
Herein, a reconfigurable multifunctional transmission metasurface polarizer, structured with double Jerusalem crosses and integrated four PIN diodes, is presented. The bottom cross rotated by 35∘ respect to the top cross. Both numerical experimental observations reveal that linearly polarized (LP) outgoing wave transmitted at approximately 4.0 GHz when subjected left-handed circularly (LCP) or right-handed (RCP) incident wave. efficiency reaches -2.5 dB all elements are in ON state....