Filters reveal what flicker conceals: temporal processing in the human visual system. I have recently discovered a new form of camouflage using 10Hz luminance flicker. This project will quantify this effect and examine the extent to which it generalises across colour and spatial dimensions and to video sequences depicting natural scenes. This information is expected to provide foundational information to technologies relating to national security that rely on visual concealment. This research wi ....Filters reveal what flicker conceals: temporal processing in the human visual system. I have recently discovered a new form of camouflage using 10Hz luminance flicker. This project will quantify this effect and examine the extent to which it generalises across colour and spatial dimensions and to video sequences depicting natural scenes. This information is expected to provide foundational information to technologies relating to national security that rely on visual concealment. This research will examine the extent to which filtering out these camouflaging frequencies enhances our sensitivity to low temporal frequency information. This decamouflaging aspect of my research is expected to improve the clarity of digital video-based technologies including ultrasound, educational, info-tainment and defence applicationsRead moreRead less
Establishing how head and face movement properties contribute to the perception of speech and identity. The proposed studies provide an extensive research program into audio-visual speech processing and person identification: key components of face-to-face communication. The likely impact and benefits of the project concern its contribution to perceptual theory (linking signal, brain and behaviour) and its practical implications: For determining the viability of multimodal biometric identificati ....Establishing how head and face movement properties contribute to the perception of speech and identity. The proposed studies provide an extensive research program into audio-visual speech processing and person identification: key components of face-to-face communication. The likely impact and benefits of the project concern its contribution to perceptual theory (linking signal, brain and behaviour) and its practical implications: For determining the viability of multimodal biometric identification procedures by assessing the distinctiveness and permanence of AV speech characteristics. In the development of a visual dubbing technique that has potential for communication in noisy environments (and for the deaf) and for the development of a morphable model for AV presentation that has application for both first and second language learning.Read moreRead less
Surfacing urban wetlands in two urban renewal sites in Sydney. Urban wetlands in Australia provide benefits for climate change mitigation, pollution reduction, habitat provision and socioecological connection. However, in large cities like Sydney, urban wetlands are unseen because undergrounded, and, therefore not adequately understood. This illegibility, and loss of understanding by residents, planners and policy makers impedes wetlands' good management. This project surfaces wetlands through v ....Surfacing urban wetlands in two urban renewal sites in Sydney. Urban wetlands in Australia provide benefits for climate change mitigation, pollution reduction, habitat provision and socioecological connection. However, in large cities like Sydney, urban wetlands are unseen because undergrounded, and, therefore not adequately understood. This illegibility, and loss of understanding by residents, planners and policy makers impedes wetlands' good management. This project surfaces wetlands through visualisation in a multimodal knowledge platform focusing on two urban renewal sites, Green Square and Marrickville South. We leverage design ethnography to develop resources for strengthening multiple stakeholders’ socioecological engagement through methods empowering just, creative and open participation.Read moreRead less
Avatars and Identities. The avatar, a virtual representation of its user, is the key element of interface technology for everyday computer use in the twenty-first century. While specialist aspects of the avatar have received intensive attention from the technology industries and scholars, the focus of the work to date has been on the technical efficiency of the interface, rather than understanding the full social implications of its use. Through a historical, ethnographic and critical analysis o ....Avatars and Identities. The avatar, a virtual representation of its user, is the key element of interface technology for everyday computer use in the twenty-first century. While specialist aspects of the avatar have received intensive attention from the technology industries and scholars, the focus of the work to date has been on the technical efficiency of the interface, rather than understanding the full social implications of its use. Through a historical, ethnographic and critical analysis of the role of the avatar, in consultation with industry, this project offers a unique opportunity to develop a wider perspective that will contribute to an understanding of the uses and policies for the digital economy.Read moreRead less
Identification and Examination of Visual Cues for Aircraft Glideslope Control. While aviation safety has improved dramatically over the last 50 years, accidents are still more common during landing than any other stage of flight. This project aims to improve our understanding of the way pilots use visual information to land an aircraft. Once our findings have been incorporated into existing training programs, this much-needed information should result in: (i) reduced pilot training time and cost ....Identification and Examination of Visual Cues for Aircraft Glideslope Control. While aviation safety has improved dramatically over the last 50 years, accidents are still more common during landing than any other stage of flight. This project aims to improve our understanding of the way pilots use visual information to land an aircraft. Once our findings have been incorporated into existing training programs, this much-needed information should result in: (i) reduced pilot training time and cost; (ii) increased trainee pilot safety and confidence; and (iii) reduced aircraft maintenance costs. A PhD student, who will be trained in visual perception and aviation, should contribute significantly to future aviation research in this country.Read moreRead less
Learning from our mistakes: How and when complex decisions fail. The project aims to develop a novel mathematical framework, augmented by simulations and a set of experiments, to study when and how people commit errors. The modern environment bombards us with signals, such as radio and television advertisements as we sit at home or warning lights and car honks as we cross the road. Despite years of psychological research, it is not entirely clear how efficiently people cope with increasing amoun ....Learning from our mistakes: How and when complex decisions fail. The project aims to develop a novel mathematical framework, augmented by simulations and a set of experiments, to study when and how people commit errors. The modern environment bombards us with signals, such as radio and television advertisements as we sit at home or warning lights and car honks as we cross the road. Despite years of psychological research, it is not entirely clear how efficiently people cope with increasing amounts of information nor is it clear whether they process multiple signals simultaneously (in parallel) or one after the other (serial). The project offers new measures, based on the rate and pattern of error responses, to supplement the commonly used response times. The combination of a theoretical framework, based on mathematical and computational work, with empirical data to test the models, may deliver a better understanding of human performance and its limitations.Read moreRead less
A Design History of Australian HIV/AIDS Public Health Campaigns 1983-2004. This project investigates the differing roles of governments and community organisations as influential factors in the formulation of graphic representations which characterise the prevention campaigns used in the HIV/AIDS epidemic in Australia 1983-2004. It explains how graphic representations, functioning as an index of official and public responses to the epidemic, impact on the aesthetic and professional autonomy of t ....A Design History of Australian HIV/AIDS Public Health Campaigns 1983-2004. This project investigates the differing roles of governments and community organisations as influential factors in the formulation of graphic representations which characterise the prevention campaigns used in the HIV/AIDS epidemic in Australia 1983-2004. It explains how graphic representations, functioning as an index of official and public responses to the epidemic, impact on the aesthetic and professional autonomy of the designer. Complimenting existing quantitative assessments this study uses a textual-visual analysis and triangulation method to demonstrate the agency of these institutional constraints placed within the broader range of material forms relating to the campaigns including brochures, posters, and videos.Read moreRead less
Choice models for learning and memory. Life is filled with familiar choices that often require quick decisions about objects in the environment and the contents of memory. This project examines how we learn to make rapid and accurate choices and how we quickly asses the level of confidence we have in recognition decisions based on our memories.
Human time perception: A crossmodal investigation. This research program investigates time perception in humans in the subsecond range. Time perception is a crucial aspect of cognitive functioning but one that is poorly understood. The subsecond scale is particularly relevant because it is the time-frame for crucial tasks such as motor coordination, speech perception and crossmodal integration. This project examines time in an audiovisual context, exploring the cognitive limits of our ability to ....Human time perception: A crossmodal investigation. This research program investigates time perception in humans in the subsecond range. Time perception is a crucial aspect of cognitive functioning but one that is poorly understood. The subsecond scale is particularly relevant because it is the time-frame for crucial tasks such as motor coordination, speech perception and crossmodal integration. This project examines time in an audiovisual context, exploring the cognitive limits of our ability to keep track of time and testing whether time is encoded as a basic feature. These experiments will further our knowledge of time perception and lead to improved models of how the brain encodes time.Read moreRead less
Audio-visual interactions in human perception. How the brain integrates information from different sensory modalities to form coherent perceptions of the external environment is a challenging question in sensory and cognitive neuroscience. Neurophysiologically, sensory interactions have become well documented over the last decade or so. Complementary perceptual research, however, is lacking. This project seeks to redress the imbalance, using audio-visual interactions as a paradigm. Psychophysica ....Audio-visual interactions in human perception. How the brain integrates information from different sensory modalities to form coherent perceptions of the external environment is a challenging question in sensory and cognitive neuroscience. Neurophysiologically, sensory interactions have become well documented over the last decade or so. Complementary perceptual research, however, is lacking. This project seeks to redress the imbalance, using audio-visual interactions as a paradigm. Psychophysical experiments will explore: (i) audio-visual interactions in perception (sound enhancing vision, vision enhancing hearing); (ii) audio-visual interactions in spatial attention. Neurophysiological evidence, plus very recent psychophysical findings of audio-visual interactions, suggest this will be a rich vein of research.Read moreRead less