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Article
Open AccessA YOLOv5-based network for the detection of a diffuse reflectance spectroscopy probe to aid surgical guidance in gastrointestinal cancer surgery
A positive circumferential resection margin (CRM) for oesophageal and gastric carcinoma is associated with local recurrence and poorer long-term survival. Diffuse reflectance spectroscopy (DRS) is a non-invasi...
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Article
Publisher Correction: Surgical polarimetric endoscopy for the detection of laryngeal cancer
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Article
Open AccessSurgical polarimetric endoscopy for the detection of laryngeal cancer
The standard-of-care for the detection of laryngeal pathologies involves distinguishing suspicious lesions from surrounding healthy tissue via contrasts in colour and texture captured by white-light endoscopy....
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Chapter and Conference Paper
Detecting the Sensing Area of a Laparoscopic Probe in Minimally Invasive Cancer Surgery
In surgical oncology, it is challenging for surgeons to identify lymph nodes and completely resect cancer even with pre-operative imaging systems like PET and CT, because of the lack of reliable intraoperative...
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Chapter
Polarimetric Endoscopy
Routine endoscopy mainly detects colour information about tissue under white light illumination. The development of polarimetric endoscopes can extend the image contrast beyond colour to complement the informa...
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Article
Open AccessIndocyanine green fluorescence image processing techniques for breast cancer macroscopic demarcation
Re-operation due to disease being inadvertently close to the resection margin is a major challenge in breast conserving surgery (BCS). Indocyanine green (ICG) fluorescence imaging could be used to visualize th...
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Chapter and Conference Paper
Self-supervised Depth Estimation in Laparoscopic Image Using 3D Geometric Consistency
Depth estimation is a crucial step for image-guided intervention in robotic surgery and laparoscopic imaging system. Since per-pixel depth ground truth is difficult to acquire for laparoscopic image data, it i...
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Chapter and Conference Paper
Self-supervised Generative Adversarial Network for Depth Estimation in Laparoscopic Images
Dense depth estimation and 3D reconstruction of a surgical scene are crucial steps in computer assisted surgery. Recent work has shown that depth estimation from a stereo image pair could be solved with convol...
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Article
Open AccessTracking and visualization of the sensing area for a tethered laparoscopic gamma probe
In surgical oncology, complete cancer resection and lymph node identification are challenging due to the lack of reliable intraoperative visualization. Recently, endoscopic radio-guided cancer resection has be...
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Article
Open AccessComplex vectorial optics through gradient index lens cascades
Graded index (GRIN) lenses are commonly used for compact imaging systems. It is not widely appreciated that the ion-exchange process that creates the rotationally symmetric GRIN lens index profile also causes ...
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Article
Open AccessEstimation of tissue oxygen saturation from RGB images and sparse hyperspectral signals based on conditional generative adversarial network
Intra-operative measurement of tissue oxygen saturation ( \({\hbox {StO}}_2\) ...
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Article
Medical Robotics
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Chapter and Conference Paper
Abstract: Physiological Parameter Estimation from Multispectral Images Unleashed
Multispectral imaging in laparoscopy can provide tissue reflectance measurements for each point in the image at multiple wavelengths of light. These reflectances encode information on important physiological p...
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Chapter and Conference Paper
Physiological Parameter Estimation from Multispectral Images Unleashed
Multispectral imaging in laparoscopy can provide tissue reflectance measurements for each point in the image at multiple wavelengths of light. These reflectances encode information on important physiological p...
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Chapter and Conference Paper
Endoscopic Depth Measurement and Super-Spectral-Resolution Imaging
Intra-operative measurements of tissue shape and multi/hyperspectral information have the potential to provide surgical guidance and decision making support. We report an optical probe based system to combine ...
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Chapter and Conference Paper
Fast Estimation of Haemoglobin Concentration in Tissue Via Wavelet Decomposition
Tissue oxygenation and perfusion can be an indicator for organ viability during minimally invasive surgery, for example allowing real-time assessment of tissue perfusion and oxygen saturation. Multispectral im...
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Article
Open AccessRobust near real-time estimation of physiological parameters from megapixel multispectral images with inverse Monte Carlo and random forest regression
Multispectral imaging can provide reflectance measurements at multiple spectral bands for each image pixel. These measurements can be used for estimation of important physiological parameters, such as oxygenat...
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Article
Open AccessA high definition Mueller polarimetric endoscope for tissue characterisation
The contrast mechanism of medical endoscopy is mainly based on metrics of optical intensity and wavelength. As another fundamental property of light, polarization can not only reveal tissue scattering and abso...
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Chapter and Conference Paper
Inference of Tissue Haemoglobin Concentration from Stereo RGB
Multispectral imaging (MSI) can provide information about tissue oxygenation, perfusion and potentially function during surgery. In this paper we present a novel, near real-time technique for intrinsic measure...
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Chapter and Conference Paper
Probe-Based Rapid Hybrid Hyperspectral and Tissue Surface Imaging Aided by Fully Convolutional Networks
Tissue surface shape and reflectance spectra provide rich intra-operative information useful in surgical guidance. We propose a hybrid system which displays an endoscopic image with a fast joint inspection of...
