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

205 results found

Benny Lo, Guang Zhong Yang, 2005, UbiSense – Ubiquitous IR Sensing and Behaviour Profiling for the Care of the Elderly and Chronically-ill Patient, The 2nd International Workshop on Body Sensor Networks (BSN 2005), Publisher: IEE, Pages: 118-118

Conference paper

Julien Pansiot, Benny Lo, Guang Zhong Yang, 2005, A Simulator for Distributed Ambient Intelligence Sensing, The 2nd International Workshop on Body Sensor Networks (BSN 2005), Publisher: IEE, Pages: 119-119

Conference paper

Nicolaou M, James A, Lo BPL, Darzi A, Yang GZet al., 2005, Invisible shadow for navigation and planning in minimal invasive surgery, MEDICAL IMAGE COMPUTING AND COMPUTER-ASSISTED INTERVENTION - MICCAI 2005, PT 2, Vol: 3750, Pages: 25-32, ISSN: 0302-9743

Journal article

Velastin SA, Boghossian B, Lo BPL, Sun J, Vicencio-Silva MAet al., 2005, PRISMATICA: Towards Ambient Intelligence in Public Transport Environments, IEEE Transactions on Systems, Man, and Cybernetics: Part A: Systems and Humans, special issue on Ambient Intelligence, Vol: 35, Pages: 164-182, ISSN: 1083-4427

On-line surveillance to improve safety and security is a major requirement for the management of public transport networks and other public places. The surveillance task is a complex one involving people, management procedures, and technology. This work describes an architecture that takes into account the distributed nature of the detection processes and the need to allow for different types of devices and actuators. This was part of a major European initiative on intelligent transport systems. Because of the dominant nature of closed circuit television in surveillance, This work describes in detail a computer-vision module used in the system and its particular ability to detect situations of interest in busy conditions. The system components have been implemented, integrated, and tested in real metropolitan railway environments and are considered to be the first step toward providing ambient intelligence in such complex scenarios. Results are presented that not only deal with detection performance, but also on the perception of people who used the system on its effectiveness and potential impact.

Journal article

Nicolaou M, James AS, Lo BP, Darzi A, Yang Get al., 2005, Invisible shadow for navigation and planning in minimal invasive surgery, Medical Image Computing and Computer Assisted Intervention (MICCAI05), Pages: 25-32

Conference paper

Velastin SA, Lo B, Sun H, 2004, A flexible communications protocol for a distributed surveillance system, JOURNAL OF NETWORK AND COMPUTER APPLICATIONS, Vol: 27, Pages: 221-253, ISSN: 1084-8045

Journal article

Yang G, Lo BP, Wang L, Rans M, Thiemjarus S, Ng J, Garner P, Brown S, Majeed B, Neid Iet al., 2004, From Sensor Networks to Behaviour Profiling: A Homecare Perspective of Intelligent Building, IEE Seminar for Intelligent Buildings, Publisher: IEE

Conference paper

Velastin SA, Khoudour L, Lo BPL, Sun J, Vicencio-Silva MAet al., 2004, Prismatica: A multi-sensor surveillance system for public transport networks, Pages: 19-25, ISSN: 0537-9989

PRISMATICA, a multi-sensor surveillance system for public transport networks, is discussed. PRISMATICA system can be regarded as providing set of diverse devices each of which can contribute added value to the monitoring task. PRISMATICA tools are aimed at providing an instrumented detection/action environment that enables control room operators to obtain timely information. Some of the components PRISMATICA are intelligent camera system, local camera network, and MIPSA.

Conference paper

Jason WP Ng, Benny PL Lo, Oliver Wells, Morris Sloman, Chris Toumazou, Nick Peters, Ara Darzi, Guang Zhong Yanget al., 2004, Ubiquitous Monitoring Environment for Wearable and Implantable Sensors (UbiMon), The UbiComp 2004

Conference paper

Kristof Van Laerhoven, Benny PL Lo, Jason WP Ng, Surapa Thiemjarus, Rachel King, Simon Kwan, Hans-Werner Gellersen, Morris Sloman, Oliver Wells, Phil Needham, Nick Peters, Ara Darzi, Chris Toumazou, Guang-Zhong Yanget al., 2004, Medical Healthcare Monitoring with Wearable and Implantable Sensors, International Workshop on Ubiquitous Computing for Pervasive Healthcare Applications (UbiHealth)

Conference paper

SThiemjarus, BPL Lo, KV Laerhoven, GZ Yanget al., 2004, Feature Selection for Wireless Sensor Networks, The 1st International Workshop on Wearable and Implantable Body Sensor Networks (BSN 2004)

Conference paper

ElHelw MA, Lo BP, Darzi A, Yang GZet al., 2004, Real-time photo-realistic rendering for surgical simulations with graphics hardware, Berlin, 2nd international workshop on medical imaging and augmented reality (MIAR 2004), Beijing, Peoples R China, Publisher: Springer-Verlag, Pages: 346-352

Conference paper

ElHelw MA, Lo BP, Chung AJ, Darzi A, Yang GZet al., 2004, Photorealistic rendering of large tissue deformation for surgical simulation, Berlin, 7th international conference on medical image computing and computer - assisted intervention (MICCAI 2004), St Malo, France, Publisher: Springer-Verlag, Pages: 355-362

Conference paper

Lo B, Velastin SA, Vicencio-Silva MA, Sun Jet al., 2003, An intelligent distributed surveillance system for public transport, Pages: 53-57, ISSN: 0963-3308

The PRISMATICA, an intelligent distributed surveillance system for public transport, is discussed. The project include tailoring of the environment, education of young people, liason with the judicial system and, visual surveillance through CCTV systems. Managers can deploy a range of organizational and technical means using the PRISMATICA. Management is geographically distributed and management takes place by converging information to control rooms both at local stations and centralized levels.

Conference paper

Lo BPL, Thiemjarus S, Yang GZ, 2003, Adaptive Bayesian networks for video processing, New York, IEEE international conference on image processing, Barcelona, Spain, 2003, Publisher: IEEE, Pages: 889-892

Due to its static nature, the inference capability of Bayesian networks (BNs) often deteriorates when the basis of input data varies, especially in video processing applications where the environment often changes constantly. This paper presents an adaptive BN where the network parameters are adjusted in accordance to input variations. An efficient retraining method is introduced for updating the parameters and the proposed network is applied to shadow removal in video sequence processing with quantitative results demonstrating the significance of adapting the network with environmental changes.

Conference paper

Benny PL Lo, Ara Darzi, Guang-Zhong Yang, 2003, Episode Classification for the Analysis of Tissue/Instrument Interaction with Multiple Visual Cues, MICCAI 2003, Publisher: Springer-Verlag

Conference paper

Lai Lo BP, Sun J, Velastin SA, 2003, Fusing visual and audio information in a distributed Intelligent surveillance system for public transport systems, Zidonghua Xuebao/Acta Automatica Sinica, Vol: 29, Pages: 393-407, ISSN: 0254-4156

Extensive research is conducted in applying video and audio processing algorithms for improving passenger safety and security in public transport systems. To develop a complete and practical intelligent surveillance system, the EU project, PRISMATICA, is designed to integrate different intelligent detection devices, which includes local camera networks, crowd monitoring devices, intelligent cameras, contactless smart cards, wireless video/audio transmission, and audio surveillance systems, to monitor different safety and security concerns in railways. As different algorithms and techniques are applied in different devices, to fulfil the real-time requirement, the PRISMATICA system is designed as a distributed system where each device is a stand-alone process, and devices are linked and synchronized using a CORBA network. Although the resulting system is capable of monitoring and detecting different events, certain detected events could represent the same incident. In addition, the system could potentially generate too much information for operators to identify and react to incidents straight away. This paper presents a novel concept of fusing different evidences from a distributed visual and audio processing system to improve the robustness of incident detection and to provide more descriptive events. On-site testing being carried out in London and Paris to validate the performance of this system.

Journal article

Stoyanov D, ElHelw M, Lo BP, Chung A, Bello F, Yang GZet al., 2003, Current issues of photorealistic rendering for virtual and augmented reality in minimally invasive surgery, Los Alamitos, 7th international conference on information visualization (IV 2003), Publisher: IEEE Computer Soc, Pages: 350-358

Conference paper

Lo BPL, Darzi A, Yang GZ, 2003, Episode classification for the analysis of tissue/instrument interaction with multiple visual cues, Berlin, 6th international conference on medical imaging computing and computer - assisted intervention, Montreal, Canada, 2003, Publisher: Springer-Verlag, Pages: 230-237

Conference paper

Stoyanov D, ElHelw M, Lo BP, Chung A, Bello F, Yang GZet al., 2003, Current issues of photorealistic rendering for virtual and augmented reality in minimally invasive surgery, Los Alamitos, 7th international conference on information visualization (IV 2003), Publisher: IEEE Computer Soc, Pages: 350-358

Conference paper

Velastin SA, Vicencio-Sliva MA, Lo B, Sun J, Khoudour Let al., 2002, A distrubuted surveillance system for improving security in public transport networks, MEASUREMENT & CONTROL, Vol: 35, Pages: 209-213, ISSN: 0020-2940

Journal article

Velastin SA, Vicencio-Silva MA, Lo B, Sun J, Khoudour Let al., 2002, A distrubuted surveillance system for improving security in public transport networks, Measurement and Control, Vol: 35, Pages: 209-213, ISSN: 0020-2940

A distributed surveillance system for improving security in public transport networks was described. Automated surveillance in public transport networks is desirable to improve safety and security and to effect sustainable changes. Some of the work that has been done in a EU-funded project, focusing on how the important aspects of scalability and usability have been addressed with a distributed and flexible system was described.

Journal article

Benny PL Lo, Guang-Zhong Yang, 2002, Neuro-Fuzzy Shadow Filter, The European Conference on Computer Vision (ECCV) 2002, Pages: 381-392

Conference paper

Lo BPL, Yang GZ, 2002, Neuro-fuzzy shadow filter, LECT NOTES COMPUT SC, Vol: 2352, Pages: 381-392, ISSN: 0302-9743

In video sequence processing, shadow remains a major source of error for object segmentation. Traditional methods of shadow removal are mainly based on colour difference thresholding between the background and current images. The application of colour filters on MPEG or MJPEG images, however, is often erroneous as the chrominance information is significantly reduced due to compression. In addition, as the colour attributes of shadows and objects are often very similar, discrete thresholding cannot always provide reliable results. This paper presents a novel approach for adaptive shadow removal by incorporating four different filters in a neuro-fuzzy framework. The neuro-fuzzy classifier has the ability of real-time self-adaptation and training, and its performance has been quantitatively assessed with both indoor and outdoor video sequences.

Journal article

Lo BPL, Velastin SA, 2001, Automatic congestion detection system for underground platforms, International Symposium on Intelligent Multimedia, Video and Speech Processing, Publisher: HONG KONG POLYTECHNIC UNIV, Pages: 158-161

Conference paper

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