ORCID Profile
0000-0002-9343-9535
Current Organisation
Australian National University
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In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Sensory Processes, Perception And Performance | Psychology | Interdisciplinary Engineering Not Elsewhere Classified | Computation Theory And Mathematics Not Elsewhere Classified | Neural Networks, Genetic Alogrithms And Fuzzy Logic | Computational Linguistics | Developmental Psychology And Ageing | Computer Software | Artificial Intelligence and Image Processing | Personality, Abilities And Assessment | Information Storage, Retrieval And Management | Software Engineering | Robotics And Mechatronics | Interdisciplinary Engineering | Computer Vision | Intelligent Robotics | Speech Recognition |
Information processing services | Application tools and system utilities | Injury control | Road safety | Automotive equipment | Behavioural and cognitive sciences | Computer software and services not elsewhere classified | Hearing, vision, speech and their disorders | Other social development and community services | Communication equipment not elsewhere classified | Other
Publisher: Springer International Publishing
Date: 2019
Publisher: Springer Berlin Heidelberg
Date: 2013
Publisher: Springer Berlin Heidelberg
Date: 2008
DOI: 10.1007/978-3-540-85988-8_75
Abstract: The "discriminative direction" has been proven useful to reveal the subtle difference between two anatomical shape classes. When a shape moves along this direction, its deformation will best manifest the class difference detected by a kernel classifier. However, we observe that such a direction cannot maintain a shape's "anatomical" correctness, introducing spurious difference. To overcome this drawback, we develop a regularized discriminative direction by requiring a shape to conform to its population distribution when it deforms along the discriminative direction. Instead of iterative optimization, an analytic solution is provided to directly work out this direction. Experimental study shows its superior performance in detecting and localizing the difference of hippoc al shapes for sex. The result is supported by other independent research in the same domain.
Publisher: IEEE
Date: 12-2013
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2021
Publisher: ACM
Date: 21-06-2009
Publisher: IEEE
Date: 12-2013
Publisher: IEEE
Date: 11-2013
Publisher: IEEE
Date: 24-10-2020
Publisher: IEEE
Date: 29-11-2020
Publisher: IEEE
Date: 06-2020
Publisher: Public Library of Science (PLoS)
Date: 31-12-2018
Publisher: IEEE
Date: 18-07-2021
Publisher: IEEE
Date: 06-2013
Publisher: IEEE
Date: 09-2014
Publisher: IEEE
Date: 09-2014
Publisher: IEEE
Date: 07-2013
Publisher: IEEE
Date: 03-2020
Publisher: IEEE
Date: 06-2013
Publisher: IEEE
Date: 04-2009
Publisher: IEEE
Date: 12-2014
Publisher: IEEE
Date: 11-2012
Publisher: IEEE
Date: 04-2014
Publisher: IGI Global
Date: 2013
DOI: 10.4018/978-1-4666-3902-7.CH021
Abstract: Vehicular ad hoc networks (VANETs) are expected to be used for the dissemination of emergency warning messages on the roads. The emergency warning messages such as post crash warning notification would require an efficient multi hop broadcast scheme to notify all the vehicles within a particular area about the emergency. Such emergency warning applications have low delay and transmission overhead requirements to effectively transmit the emergency notification. In this paper, an adaptive distance based backoff scheme is presented for efficient dissemination of warning messages on the road. The proposed scheme adaptively selects the furthest vehicle as the next forwarder of the emergency message based on channel conditions. The detailed performance figures of the protocol are presented in the paper using simulations in the OPNET network simulator. The proposed protocol introduces lower packet delay and broadcast overhead as compared to standard packet broadcasting protocols for vehicular networks.
Publisher: Springer Science and Business Media LLC
Date: 12-10-2018
DOI: 10.1038/S41598-018-33543-3
Abstract: Patients with age-related macular degeneration (AMD) have difficulty recognising people’s faces. We tested whether this could be improved using caricaturing: an image enhancement procedure derived from cortical coding in a perceptual ‘face-space’. Caricaturing exaggerates the distinctive ways in which an in idual’s face shape differs from the average. We tested 19 AMD-affected eyes (from 12 patients ages 66–93 years) monocularly, selected to cover the full range of vision loss. Patients rated how different in identity people’s faces appeared when compared in pairs (e.g., two young men, both Caucasian), at four caricature strengths (0, 20, 40, 60% exaggeration). This task gives data reliable enough to analyse statistically at the in idual-eye level. All 9 eyes with mild vision loss (acuity ≥ 6/18) showed significant improvement in identity discrimination (higher dissimilarity ratings) with caricaturing. The size of improvement matched that in normal-vision young adults. The caricature benefit became less stable as visual acuity further decreased, but caricaturing was still effective in half the eyes with moderate and severe vision loss (significant improvement in 5 of 10 eyes at acuities from 6/24 to poorer than /360). We conclude caricaturing has the potential to help many AMD patients recognise faces.
Publisher: Springer International Publishing
Date: 2021
Publisher: Cambridge University Press
Date: 14-12-1995
Publisher: Elsevier BV
Date: 08-2022
Publisher: IEEE
Date: 05-2012
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 19-06-2019
DOI: 10.1167/19.6.18
Abstract: Previous studies of age-related macular degeneration (AMD) report impaired facial expression recognition even with enlarged face images. Here, we test potential benefits of caricaturing (exaggerating how the expression's shape differs from neutral) as an image enhancement procedure targeted at mid- to high-level cortical vision. Experiment 1 provides proof-of-concept using normal vision observers shown blurred images as a partial simulation of AMD. Caricaturing significantly improved expression recognition (happy, sad, anger, disgust, fear, surprise) by ∼4%-5% across young adults and older adults (mean age 73 years) two different severities of blur high, medium, and low intensity of the original expression and all intermediate accuracy levels (impaired but still above chance). Experiment 2 tested AMD patients, running 19 eyes monocularly (from 12 patients, 67-94 years) covering a wide range of vision loss (acuities 6/7.5 to poorer than 6/360). With faces pre-enlarged, recognition approached ceiling and was only slightly worse than matched controls for high- and medium-intensity expressions. For low-intensity expressions, recognition of veridical expressions remained impaired and was significantly improved with caricaturing across all levels of vision loss by 5.8%. Overall, caricaturing benefits emerged when improvement was most needed, that is, when initial recognition of uncaricatured expressions was impaired.
Publisher: IEEE
Date: 11-2013
Publisher: IEEE
Date: 11-2012
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: IEEE
Date: 06-2019
Publisher: IEEE
Date: 10-2019
Publisher: IEEE
Date: 04-2014
Publisher: IEEE
Date: 06-2011
Publisher: IEEE
Date: 03-2020
Publisher: IEEE
Date: 12-2010
Publisher: Springer Berlin Heidelberg
Date: 2013
Publisher: IEEE
Date: 06-2020
Publisher: Elsevier BV
Date: 12-2021
Publisher: Association for Computing Machinery (ACM)
Date: 28-05-2020
DOI: 10.1145/3390462
Abstract: Deep convolutional networks–based super-resolution is a fast-growing field with numerous practical applications. In this exposition, we extensively compare more than 30 state-of-the-art super-resolution Convolutional Neural Networks (CNNs) over three classical and three recently introduced challenging datasets to benchmark single image super-resolution. We introduce a taxonomy for deep learning–based super-resolution networks that groups existing methods into nine categories including linear, residual, multi-branch, recursive, progressive, attention-based, and adversarial designs. We also provide comparisons between the models in terms of network complexity, memory footprint, model input and output, learning details, the type of network losses, and important architectural differences (e.g., depth, skip-connections, filters). The extensive evaluation performed shows the consistent and rapid growth in the accuracy in the past few years along with a corresponding boost in model complexity and the availability of large-scale datasets. It is also observed that the pioneering methods identified as the benchmarks have been significantly outperformed by the current contenders. Despite the progress in recent years, we identify several shortcomings of existing techniques and provide future research directions towards the solution of these open problems. Datasets and codes for evaluation are publicly available at aeed-anwar/SRsurvey.
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 12-08-2021
DOI: 10.1167/TVST.10.10.7
Publisher: Springer Science and Business Media LLC
Date: 16-10-2012
DOI: 10.1007/S10916-010-9605-X
Abstract: In recent years interest in the application of Wireless Body Area Network (WBAN) for patient monitoring applications has grown significantly. A WBAN can be used to develop patient monitoring systems which offer flexibility to medical staff and mobility to patients. Patients monitoring could involve a range of activities including data collection from various body sensors for storage and diagnosis, transmitting data to remote medical databases, and controlling medical appliances, etc. Also, WBANs could operate in an interconnected mode to enable remote patient monitoring using telehealth/e-health applications. A WBAN can also be used to monitor athletes' performance and assist them in training activities. For such applications it is very important that a WBAN collects and transmits data reliably, and in a timely manner to a monitoring entity. In order to address these issues, this paper presents WBAN design techniques for medical applications. We examine the WBAN design issues with particular emphasis on the design of MAC protocols and power consumption profiles of WBAN. Some simulation results are presented to further illustrate the performances of various WBAN design techniques.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2023
Publisher: IEEE
Date: 12-2009
Publisher: IEEE
Date: 06-2019
Publisher: IEEE
Date: 12-2018
Publisher: Public Library of Science (PLoS)
Date: 04-10-2018
Publisher: IEEE
Date: 2009
Publisher: IEEE
Date: 11-2017
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 18-12-2020
DOI: 10.1167/TVST.9.13.31
Publisher: Association for Research in Vision and Ophthalmology (ARVO)
Date: 28-09-2021
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2010
Publisher: IEEE
Date: 09-2010
Publisher: Springer Science and Business Media LLC
Date: 21-12-2019
Publisher: IEEE
Date: 10-2013
Publisher: Institution of Engineering and Technology (IET)
Date: 26-11-2019
Publisher: Elsevier BV
Date: 11-2020
Publisher: IEEE
Date: 2021
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: IEEE
Date: 10-2017
Publisher: Elsevier BV
Date: 05-2010
Publisher: IEEE
Date: 05-2013
Publisher: Springer International Publishing
Date: 2020
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2023
Publisher: IEEE
Date: 12-2014
Publisher: IEEE
Date: 10-01-2021
Publisher: IEEE
Date: 02-2014
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2022
Publisher: IEEE
Date: 10-2013
Publisher: IGI Global
Date: 2013
DOI: 10.4018/978-1-4666-2919-6.CH067
Abstract: In recent years, vertical handover (VHO) has been identified as the primary vehicle to provision seamless mobility and quality of service (QoS) transparency for end-user in composite network. This allows end-user to enjoy ubiquitous connectivity in the most efficient way, irrespective of time and place, commonly known as always best connected. In this chapter, the authors introduce the notion of cognitive cooperation as a means to provide optimized VHO opportunistically in order to exploit the inherent heterogeneity that exists within such composite network to improve radio resource usage. Through the cognitive cooperation, the chapter proposes a distributed load adaptation strategy (LAS) framework which exploits the benefits of joint optimization, particularly between link adaptation and load adaptation on-demand. The authors advocate that such synergetic interactions between the physical layer (PHY) and medium access control (MAC) layer have advantages over the PHY approach based only on link adaptation. Comprehensive performance analyses show that the LAS framework arbitrates a QoS-balanced system in which statistical QoS guarantee for multimedia traffic can be provisioned and overall system capacity can be maximized.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2022
Publisher: ACM
Date: 2012
Publisher: Springer International Publishing
Date: 2020
Publisher: IEEE
Date: 18-07-2021
Publisher: IEEE
Date: 06-2013
Publisher: IEEE
Date: 10-2019
Publisher: IEEE
Date: 10-2012
Publisher: IEEE
Date: 11-2017
Publisher: IEEE
Date: 11-2012
Publisher: Institution of Engineering and Technology
Date: 2012
DOI: 10.1049/CP.2012.2090
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2019
Publisher: IEEE
Date: 12-2012
Publisher: Elsevier BV
Date: 07-2009
Publisher: Springer International Publishing
Date: 2020
Publisher: IEEE
Date: 10-2017
Publisher: Elsevier BV
Date: 06-2020
Publisher: IEEE
Date: 08-2014
Publisher: IEEE
Date: 06-2020
Publisher: Springer International Publishing
Date: 2018
Publisher: IEEE
Date: 10-2019
Publisher: IEEE
Date: 11-2012
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 08-2014
DOI: 10.1109/TMC.2013.120
Publisher: American Psychological Association (APA)
Date: 06-2019
DOI: 10.1037/XAP0000180
Abstract: There are multiple well-established situations in which humans' face recognition performance is poor, including for low-resolution images, other-race faces, and in older adult observers. Here we show that caricaturing faces-that is, exaggerating their appearance away from an average face-can provide a useful applied method for improving face recognition across all these circumstances. We employ a face-name learning task offering a number of methodological advantages (e.g., valid comparison of the size of the caricature improvement across conditions differing in overall accuracy). Across six experiments, we (a) extend previous evidence that caricaturing can improve recognition of low-resolution (blurred) faces (b) show for the first time that caricaturing improves recognition and perception of other-race faces and (c) show for the first time that caricaturing improves recognition in observers across the whole adult life span (testing older adults, M age = 71 years). In size, caricature benefits were at least as large where natural face recognition is poor (other-race, low resolution, older adults) as for the naturally best situation (own-race high-resolution faces in young adults). We discuss potential for practical applicability to improving face recognition in low-vision patients (age-related macular degeneration, bionic eye), security settings (police, passport control), eyewitness testimony, and prosopagnosia. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
Publisher: IEEE
Date: 03-2018
Publisher: IEEE
Date: 06-2013
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 05-2012
DOI: 10.1109/TMC.2011.87
Publisher: Elsevier BV
Date: 02-2013
Publisher: IEEE
Date: 02-2009
Publisher: Springer International Publishing
Date: 2018
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2018
Publisher: IEEE
Date: 02-2009
Publisher: IEEE
Date: 11-2011
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Publisher: Springer International Publishing
Date: 2021
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2021
Publisher: IEEE
Date: 02-2009
Publisher: IEEE
Date: 04-2010
Publisher: Elsevier BV
Date: 03-2013
Publisher: IEEE
Date: 10-2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2022
Publisher: Wiley
Date: 15-05-2018
DOI: 10.1111/AOR.13134
Abstract: Tactile vision substitution devices present visual images as tactile representations on the skin. In this study we have tested the performance of a prototype 96-tactor vibrotactile using a subset of 64 tactors. We have determined the tactile spatial acuity and intensity discrimination in 14 naïve subjects. Spatial acuity was determined using a grating acuity task. Subjects could successfully identify the orientation of horizontal and vertical gratings with an average psychophysical threshold of 120 mm. When diagonal gratings were included in the analysis, the median performance dropped below psychophysical threshold, but was still significantly above chance at gratings of 142 mm wide. Intensity discrimination yielded an average Weber fraction of 0.44, corresponding to 13 discernable "gray levels" in the available dynamic range. Interleaved stimulation of the motors did not significantly affect spatial acuity or intensity discrimination.
Publisher: Springer Berlin Heidelberg
Date: 2006
Publisher: Springer Berlin Heidelberg
Date: 2006
Publisher: Springer Berlin Heidelberg
Date: 2006
Start Date: 03-2010
End Date: 12-2016
Amount: $50,000,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 2002
End Date: 12-2006
Amount: $370,808.00
Funder: Australian Research Council
View Funded ActivityStart Date: 12-2006
End Date: 03-2009
Amount: $289,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 12-2004
End Date: 12-2010
Amount: $2,000,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 05-2004
End Date: 12-2007
Amount: $160,698.00
Funder: Australian Research Council
View Funded ActivityStart Date: 01-2004
End Date: 11-2004
Amount: $20,000.00
Funder: Australian Research Council
View Funded Activity