Imperial College London

DrBennyLo

Faculty of MedicineDepartment of Surgery & Cancer

Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 7594 0806benny.lo Website

 
 
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Location

 

B414BBessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

221 results found

Mountney P, Lo B, Thiemjarus S, Stoyanov D, Zhong-Yang Get al., 2007, A probabilistic framework for tracking deformable soft tissue in minimally invasive surgery, Pages: 34-41, ISSN: 0302-9743

The use of vision based algorithms in minimally invasive surgery has attracted significant attention in recent years due to its potential in providing in situ 3D tissue deformation recovery for intra-operative surgical guidance and robotic navigation. Thus far, a large number of feature descriptors have been proposed in computer vision but direct application of these techniques to minimally invasive surgery has shown significant problems due to free-form tissue deformation and varying visual appearances of surgical scenes. This paper evaluates the current state-of-the-art feature descriptors in computer vision and outlines their respective performance issues when used for deformation tracking. A novel probabilistic framework for selecting the most discriminative descriptors is presented and a Bayesian fusion method is used to boost the accuracy and temporal persistency of soft-tissue deformation tracking. The performance of the proposed method is evaluated with both simulated data with known ground truth, as well as in vivo video sequences recorded from robotic assisted MIS procedures. © Springer-Verlag Berlin Heidelberg 2007.

Conference paper

Wang L, Lo BPL, Yang G-Z, 2007, Multichannel Reflective PPG Earpiece Sensor With Passive Motion Cancellation, IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, Vol: 1, Pages: 235-241, ISSN: 1932-4545

Journal article

Lo B, Yang GZ, 2007, Pervasive Sensing

Patent

Aziz O, Atallah L, Lo B, ElHelw M, Wang L, Yang GZ, Darzi Aet al., 2007, A Pervasive Body Sensor Network for Measuring Postoperative Recovery at Home, Surgical Innovation, Vol: 14, Pages: 83-90

Patients going home following major surgery are susceptible to complications such as wound infection, abscess formation, malnutrition, poor analgesia, and depression, all of which can develop after the fifth postoperative day and slow recovery. Although current hospital recovery monitoring systems are effective during perioperative and early postoperative periods, they cannot be used when the patient is at home. Measuring and quantifying home recovery is currently a subjective and labor-intensive process. This case report highlights the development and piloting of a wireless body sensor network to monitor postoperative recovery at home in patients undergoing abdominal surgery. The device consists of wearable sensors (vital signs, motion) combined with miniaturized computers wirelessly linked to each other, thus allowing continuous monitoring of patients in a pervasive (unobtrusive) manner in any environment. Initial pilot work with results in both the simulated (with volunteers) and the real home environment (with patients) is presented.

Journal article

Yang GZ, Wang L, Lo B, 2007, PPG sensor

Patent

Mountney P, Lo B, Thiernjarus S, Stoyanov D, Zhong-Yang Get al., 2007, A Probabilistic framework for tracking deformable soft tissue in minimally invasive surgery, 10th International Conference on Medical Image Computing and Computer-Assisted Intervention (MICCAI 2007), Publisher: SPRINGER-VERLAG BERLIN, Pages: 34-+, ISSN: 0302-9743

Conference paper

Lo B, Atallah L, Aziz O, El ElHew M, Darzi A, Yang G-Zet al., 2007, Real-time pervasive monitoring for postoperative care, 4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2007), Publisher: SPRINGER, Pages: 122-+, ISSN: 1680-0737

Conference paper

Atallah L, ElHelw M, Pansiot J, Stoyanov D, Wang L, Lo B, Yang GZet al., 2007, Behaviour profiling with ambient and wearable sensing, 4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2007), Publisher: SPRINGER, Pages: 133-+, ISSN: 1680-0737

Conference paper

Katsiri E, Ho M, Wang L, Lo B, Toumazou Cet al., 2007, Embedded real-time heart variability analysis, 4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2007), Publisher: SPRINGER, Pages: 128-+, ISSN: 1680-0737

Conference paper

Wang L, Lo B, Yang GZ, 2007, Reflective photoplethysmograph earpiece sensor for ubiquitous heart rate monitoring, 4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2007), Publisher: SPRINGER, Pages: 179-+, ISSN: 1680-0737

Conference paper

James A, Vieira D, Lo B, Darzi A, Yang G-Zet al., 2007, Eye-gaze driven surgical workflow segmentation, MEDICAL IMAGE COMPUTING AND COMPUTER-ASSISTED INTERVENTION- MICCAI 2007, PT 2, PROCEEDINGS, Vol: 4792, Pages: 110-+, ISSN: 0302-9743

Journal article

James A, Vieira D, Lo B, Darzi A, Yang GZet al., 2007, Eye-gaze driven surgical workflow segmentation, Pages: 110-117, ISSN: 0302-9743

In today's climate of clinical governance there is growing pressure on surgeons to demonstrate their competence, improve standards and reduce surgical errors. This paper presents a study on developing a novel eye-gaze driven technique for surgical assessment and workflow recovery. The proposed technique investigates the use of a Parallel Layer Perceptor (PLP) to automate the recognition of a key surgical step in a porcine laparoscopic cholecystectomy model. The classifier is eye-gaze contingent but combined with image based visual feature detection for improved system performance. Experimental results show that by fusing image instrument likelihood measures, an overall classification accuracy of 75% is achieved. © Springer-Verlag Berlin Heidelberg 2007.

Conference paper

Pansiot J, Stoyanov D, McIlwraith D, Lo BPL, Yang GZet al., 2007, Ambient and wearable sensor fusion for activity recognition in healthcare monitoring systems, 4th International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2007), Publisher: SPRINGER, Pages: 208-+, ISSN: 1680-0737

Conference paper

Buchanan R, Doordan D, Margolin V, 2006, Introduction ('Design Issues'), DESIGN ISSUES, Vol: 22, Pages: 1-2, ISSN: 0747-9360

Journal article

Guang-Zhong Yang, Surapa Thiemjarus, 2006, Spatial-Temporal Self Organising Map, WO 2006/097734

Patent

Aziz O, Lo B, King R, Darzi A, Yang GZet al., 2006, Pervasive body sensor network: an approach to monitoring the post-operative surgical patient, Los Alamitos, International workshop on wearable and implantable body sensor networks, Publisher: IEEE Computer Soc, Pages: 13-16

Conference paper

Julien Pansiot, Danail Stoyanov, Benny PL Lo, Guang-Zhong Yanget al., 2006, Towards Image-Based Modeling for Ambient Sensing, The International Workshop on Wearable and Implantable Body Sensor Networks 2006 (BSN 2006), Publisher: IEEE, Pages: 195-198

Conference paper

Thiemjarus S, Lo BP, Yang G, 2006, A Spatio-Temporal Architecture for Context-Aware Sensing, International Workshop on Wearable and Implantable Body Sensor Networks 2006, Pages: 191-194

Conference paper

Benny Lo, Fani Deligianni, Guang-Zhong Yang, 2006, Source Recovery for Body Sensor Network, The International Workshop on Wearable and Implantable Body Sensor Networks 2006 (BSN 2006), Publisher: IEEE, Pages: 199-202

Conference paper

Thiemjarus S, Lo B, Yang GZ, 2006, A spatio-temporal architecture for context aware sensing, Los Alamitos, International workshop on wearable and implantable body sensor networks, 3 - 5 April 2006, Cambridge, MA, Publisher: Ieee Computer Soc, Pages: 191-194

Conference paper

Deligianni F, Lo BP, Yang G, 2006, Source Recovery for Body Sensor Network, International Workshop on Wearable and Implantable Body Sensor Networks 2006, Pages: 199-202

Conference paper

Deligianni F, Lo BP, Yang G, 2006, Source Recovery for Body Sensor Network, International Workshop on Wearable and Implantable Body Sensor Networks 2006, Pages: 199-202

Conference paper

Lo B, Yang GZ, 2006, Gait analysis

Patent

Regev M, 2006, Introduction, POPULAR MUSIC, Vol: 25, Pages: 1-2, ISSN: 0261-1430

Journal article

Aziz O, Lo B, King R, Yang GZ, Darzi Aet al., 2006, Pervasive Body Sensor Network: An Approach to Monitoring the Post-operative Surgical Patient, IEEE: BSN 2006

Journal article

Thayumanavan S, 2006, Introduction, PHOTOSYNTHESIS RESEARCH, Vol: 87, Pages: 1-2, ISSN: 0166-8595

Journal article

Benny Lo, Guang-Zhong Yang, 2006, Body Sensor Networks: Infrastruture for Life Science Research, IEEE/NLM Life Science Systems and Application Workshop (LSSA 2006), Publisher: IEEE, Pages: 1-2

Conference paper

Guang-Zhong Yang, Benny Lo, Surapa Thiemjarus, 2006, Autonomic Sensing, Body Sensor Networks, Editors: Yang, London, Publisher: Springer-Verlag, Pages: 333-372, ISBN: 9781846282720

Book chapter

DeFigueiredo Coutinho J, juvonen M, Wang J, Lo BP, Luk W, Mencer O, Yang Get al., 2006, Designing a Posture Analysis System with Hardware Implementation, Journal of VLSI Signal Processing

Journal article

Omer Aziz, Benny Lo, Ara Darzi, Guang-Zhong Yanget al., 2006, Body Sensor Networks - Introduction, Body Sensor Networks, Editors: Yang, London, Publisher: Springer-Verlag, Pages: 1-40, ISBN: 9781846282720

Book chapter

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