The Experts below are selected from a list of 627 Experts worldwide ranked by ideXlab platform
Patrick J Wolfe - One of the best experts on this subject based on the ideXlab platform.
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the Growing Ubiquity of algorithms in society implications impacts and innovations
Philosophical Transactions of the Royal Society A, 2018Co-Authors: Sofia C Olhede, Patrick J WolfeAbstract:The Growing Ubiquity of algorithms in society raises a number of fundamental questions concerning governance of data, transparency of algorithms, legal and ethical frameworks for automated algorith...
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ICIP (2) - Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity
2007 IEEE International Conference on Image Processing, 2007Co-Authors: Keigo Hirakawa, Patrick J WolfeAbstract:In digital imaging applications, data are typically obtained via a spatial subsampling procedure implemented as a color filter array - a physical construction whereby only a single color representative is measured at each pixel location. Owing to the Growing Ubiquity of color imaging and display devices, much recent work has focused on the interplay between color filter array design and subsequent digital processing, including in particular the canonical spatio-chromatic reconstruction task known as demosaicking. Here we consider the problem of improved color filter array design, leading to enhanced image fidelity. We first analyze the limitations of the well-known Bayer pattern, currently most popular in industry. We then propose a framework for designing rectangular color filter arrays amenable to efficient and completely linear reconstruction, and provide examples of new patterns that enable improvements in reconstruction quality.
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Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity
2007 IEEE International Conference on Image Processing, 2007Co-Authors: Keigo Hirakawa, Patrick J WolfeAbstract:In digital imaging applications, data are typically obtained via a spatial subsampling procedure implemented as a color filter array - a physical construction whereby only a single color representative is measured at each pixel location. Owing to the Growing Ubiquity of color imaging and display devices, much recent work has focused on the interplay between color filter array design and subsequent digital processing, including in particular the canonical spatio-chromatic reconstruction task known as demosaicking. Here we consider the problem of improved color filter array design, leading to enhanced image fidelity. We first analyze the limitations of the well-known Bayer pattern, currently most popular in industry. We then propose a framework for designing rectangular color filter arrays amenable to efficient and completely linear reconstruction, and provide examples of new patterns that enable improvements in reconstruction quality.
Karine Nahon - One of the best experts on this subject based on the ideXlab platform.
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HICSS - Introduction to the Digital and Social Media Track
2014 47th Hawaii International Conference on System Sciences, 2014Co-Authors: Kevin Crowston, Karine NahonAbstract:In a world abundant with computers and blanketed by networks, digital and social media play a central role in how humans work, learn and live, and provides new modes of communication that transcend traditional geographical and cultural boundaries. Reflecting the Growing Ubiquity and prevalence of social media in all aspects of human activities, the Digital and Social Media Track is a natural expansion of the scope of the Digital Media track that ran for several years at HICSS.
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Introduction to Digital and Social Media Track
2014 47th Hawaii International Conference on System Sciences, 2014Co-Authors: Kevin Crowston, Karine NahonAbstract:In a world abundant with computers and blanketed by networks, digital and social media play a central role in how humans work, learn and live, and provides new modes of communication that transcend traditional geographical and cultural boundaries. Reflecting the Growing Ubiquity and prevalence of social media in all aspects of human activities, the Digital and Social Media Track is a natural expansion of the scope of the Digital Media track that ran for several years at HICSS.
Kevin Crowston - One of the best experts on this subject based on the ideXlab platform.
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HICSS - Introduction to the Digital and Social Media Track
2014 47th Hawaii International Conference on System Sciences, 2014Co-Authors: Kevin Crowston, Karine NahonAbstract:In a world abundant with computers and blanketed by networks, digital and social media play a central role in how humans work, learn and live, and provides new modes of communication that transcend traditional geographical and cultural boundaries. Reflecting the Growing Ubiquity and prevalence of social media in all aspects of human activities, the Digital and Social Media Track is a natural expansion of the scope of the Digital Media track that ran for several years at HICSS.
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Introduction to Digital and Social Media Track
2014 47th Hawaii International Conference on System Sciences, 2014Co-Authors: Kevin Crowston, Karine NahonAbstract:In a world abundant with computers and blanketed by networks, digital and social media play a central role in how humans work, learn and live, and provides new modes of communication that transcend traditional geographical and cultural boundaries. Reflecting the Growing Ubiquity and prevalence of social media in all aspects of human activities, the Digital and Social Media Track is a natural expansion of the scope of the Digital Media track that ran for several years at HICSS.
Patrick Hurley - One of the best experts on this subject based on the ideXlab platform.
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DSN Workshops - An Uncrewed Aerial Vehicle Attack Scenario and Trustworthy Repair Architecture
2016 46th Annual IEEE IFIP International Conference on Dependable Systems and Networks Workshop (DSN-W), 2016Co-Authors: Kate Highnam, Kevin Angstadt, Kevin Leach, Aaron Paulos, Westley Weimer, Patrick HurleyAbstract:With the Growing Ubiquity of uncrewed aerial vehicles (UAVs), mitigating emergent threats in such systems has become increasingly important. In this short paper, we discuss an indicative class of UAVs and a potential attack scenario in which a benign UAV completing a mission can be compromised by a malicious attacker with an antenna and a commodity computer with open-source ground station software. We attest to the relevance of such a scenario for both enterprise and defense applications. We describe a system architecture for resiliency and trustworthiness in the face of these attacks. Our system is based on the quantitative assessment of trust from domain-specific telemetry data and the application of program repair techniques to UAV flight plans. We conclude with a discussion of restoring trust in post-repair UAV mission integrity.
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An Uncrewed Aerial Vehicle Attack Scenario and Trustworthy Repair Architecture
Proceedings - 46th Annual IEEE IFIP International Conference on Dependable Systems and Networks DSN-W 2016, 2016Co-Authors: Kate Highnam, Kevin Angstadt, Kevin Leach, Aaron Paulos, Westley Weimer, Patrick HurleyAbstract:With the Growing Ubiquity of uncrewed aerial vehicles (UAVs), mitigating emergent threats in such systems has become increasingly important. In this short paper, we discuss an indicative class of UAVs and a potential attack scenario in which a benign UAV completing a mission can be compromised by a malicious attacker with an antenna and a commodity computer with open-source ground station software. We attest to the relevance of such a scenario for both enterprise and defense applications. We describe a system architecture for resiliency and trustworthiness in the face of these attacks. Our system is based on the quantitative assessment of trust from domain-specific telemetry data and the application of program repair techniques to UAV flight plans. We conclude with a discussion of restoring trust in post-repair UAV mission integrity.
Keigo Hirakawa - One of the best experts on this subject based on the ideXlab platform.
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ICIP (2) - Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity
2007 IEEE International Conference on Image Processing, 2007Co-Authors: Keigo Hirakawa, Patrick J WolfeAbstract:In digital imaging applications, data are typically obtained via a spatial subsampling procedure implemented as a color filter array - a physical construction whereby only a single color representative is measured at each pixel location. Owing to the Growing Ubiquity of color imaging and display devices, much recent work has focused on the interplay between color filter array design and subsequent digital processing, including in particular the canonical spatio-chromatic reconstruction task known as demosaicking. Here we consider the problem of improved color filter array design, leading to enhanced image fidelity. We first analyze the limitations of the well-known Bayer pattern, currently most popular in industry. We then propose a framework for designing rectangular color filter arrays amenable to efficient and completely linear reconstruction, and provide examples of new patterns that enable improvements in reconstruction quality.
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Spatio-Spectral Color Filter Array Design for Enhanced Image Fidelity
2007 IEEE International Conference on Image Processing, 2007Co-Authors: Keigo Hirakawa, Patrick J WolfeAbstract:In digital imaging applications, data are typically obtained via a spatial subsampling procedure implemented as a color filter array - a physical construction whereby only a single color representative is measured at each pixel location. Owing to the Growing Ubiquity of color imaging and display devices, much recent work has focused on the interplay between color filter array design and subsequent digital processing, including in particular the canonical spatio-chromatic reconstruction task known as demosaicking. Here we consider the problem of improved color filter array design, leading to enhanced image fidelity. We first analyze the limitations of the well-known Bayer pattern, currently most popular in industry. We then propose a framework for designing rectangular color filter arrays amenable to efficient and completely linear reconstruction, and provide examples of new patterns that enable improvements in reconstruction quality.
