The Experts below are selected from a list of 45 Experts worldwide ranked by ideXlab platform
E. Johnstone - One of the best experts on this subject based on the ideXlab platform.
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Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record
Quaternary Science Reviews, 2020Co-Authors: John Lewin, Mark G. Macklin, E. JohnstoneAbstract:Lewin, John, Macklin, M.G., Johnstone, E., (2005) 'Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record', Quaternary Science Reviews 24(16-17) pp.1873-1889 RAE2008A Holocene alluvial archive of 506 dated units for Great Britain is analysed in terms of the sedimentation styles involved. The database is classified by sedimentation unit (channel sediments, palaeochannel fills, floodplain surface sediments, floodbasins and colluvial deposits) and alluvial ensemble (fans and cones, upland gullies and streams, braided systems and active/inactive meandering and anastomosing systems). Floodplain, palaeochannel and floodbasin sediments dominate the record, mostly from meandering/anastomosing systems. Different sediment units show varied potential for recording Environmental change: some are relatively poorly dated with respect to the volumes of material involved, whilst many dates ?float? in periods of depositional activity which lasted for extended time periods. Much dated activity is autogenic and of relatively little value in interpreting External Environmental Influence. Ensembles and units are similar in age patterns in some respects (commonly they exhibit sets of short-term peaks in sedimentation activity) but differ in others. Floodbasins and, to an extent, braided systems feature in the earlier Holocene, whilst dated fan deposition is more evident in the late Holocene. There is a general bias towards sediment units of late Holocene age, which probably reflects preservation factors. Previous British Holocene alluviation models are reviewed: it is suggested that the majority of earlier models reflect partial views imposed by limited regional coverage and available dating.Peer reviewe
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Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record
Quaternary Science Reviews, 2005Co-Authors: John Lewin, Mark G. Macklin, E. JohnstoneAbstract:Abstract A Holocene alluvial archive of 506 dated units for Great Britain is analysed in terms of the sedimentation styles involved. The database is classified by sedimentation unit (channel sediments, palaeochannel fills, floodplain surface sediments, floodbasins and colluvial deposits) and alluvial ensemble (fans and cones, upland gullies and streams, braided systems and active/inactive meandering and anastomosing systems). Floodplain, palaeochannel and floodbasin sediments dominate the record, mostly from meandering/anastomosing systems. Different sediment units show varied potential for recording Environmental change: some are relatively poorly dated with respect to the volumes of material involved, whilst many dates ‘float’ in periods of depositional activity which lasted for extended time periods. Much dated activity is autogenic and of relatively little value in interpreting External Environmental Influence. Ensembles and units are similar in age patterns in some respects (commonly they exhibit sets of short-term peaks in sedimentation activity) but differ in others. Floodbasins and, to an extent, braided systems feature in the earlier Holocene, whilst dated fan deposition is more evident in the late Holocene. There is a general bias towards sediment units of late Holocene age, which probably reflects preservation factors. Previous British Holocene alluviation models are reviewed: it is suggested that the majority of earlier models reflect partial views imposed by limited regional coverage and available dating.
Xiangyue Zhou - One of the best experts on this subject based on the ideXlab platform.
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iThings/GreenCom/CPSCom/SmartData - An Adaptive Weighted Alternating Minimization Algorithm for Color Images Reconstruction In the Field of Automation
2018 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber Physical and , 2018Co-Authors: Chao Huang, Huiyuan Zhou, Xiangyue ZhouAbstract:Along with the developing of digital image processing technology, there are more and more applications of digital images in the field of automation. However, during the process of the imaging, acquisition and transmission, digital images are often degraded due to the noise and other External Environmental Influence. This eventually leads to quite a lot of difficulties for the application of these degraded images in actual automation production. In a total variation (TV) minimization framework, the novel algorithm is designed to establish a connection between an alternating minimization method and half-quadratic regularization for color images reconstruction. Our contributions are threefold. Firstly, the novel algorithm uses the idea of a new bisection which shows a strong convergence while preserving texture details. Secondly, the proposed algorithm is able to determine optimal value of the regularization parameter automatically and converges with the speed of $2^{k}$ . Lastly, our approach is quite general and has strong adaptation and robustness ability during the process of color image reconstruction.
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An Adaptive Weighted Alternating Minimization Algorithm for Color Images Reconstruction In the Field of Automation
2018 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber Physical and , 2018Co-Authors: Chao Huang, Huiyuan Zhou, Xiangyue ZhouAbstract:Along with the developing of digital image processing technology, there are more and more applications of digital images in the field of automation. However, during the process of the imaging, acquisition and transmission, digital images are often degraded due to the noise and other External Environmental Influence. This eventually leads to quite a lot of difficulties for the application of these degraded images in actual automation production. In a total variation (TV) minimization framework, the novel algorithm is designed to establish a connection between an alternating minimization method and half-quadratic regularization for color images reconstruction. Our contributions are threefold. Firstly, the novel algorithm uses the idea of a new bisection which shows a strong convergence while preserving texture details. Secondly, the proposed algorithm is able to determine optimal value of the regularization parameter automatically and converges with the speed of 2k. Lastly, our approach is quite general and has strong adaptation and robustness ability during the process of color image reconstruction.
John Lewin - One of the best experts on this subject based on the ideXlab platform.
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Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record
Quaternary Science Reviews, 2020Co-Authors: John Lewin, Mark G. Macklin, E. JohnstoneAbstract:Lewin, John, Macklin, M.G., Johnstone, E., (2005) 'Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record', Quaternary Science Reviews 24(16-17) pp.1873-1889 RAE2008A Holocene alluvial archive of 506 dated units for Great Britain is analysed in terms of the sedimentation styles involved. The database is classified by sedimentation unit (channel sediments, palaeochannel fills, floodplain surface sediments, floodbasins and colluvial deposits) and alluvial ensemble (fans and cones, upland gullies and streams, braided systems and active/inactive meandering and anastomosing systems). Floodplain, palaeochannel and floodbasin sediments dominate the record, mostly from meandering/anastomosing systems. Different sediment units show varied potential for recording Environmental change: some are relatively poorly dated with respect to the volumes of material involved, whilst many dates ?float? in periods of depositional activity which lasted for extended time periods. Much dated activity is autogenic and of relatively little value in interpreting External Environmental Influence. Ensembles and units are similar in age patterns in some respects (commonly they exhibit sets of short-term peaks in sedimentation activity) but differ in others. Floodbasins and, to an extent, braided systems feature in the earlier Holocene, whilst dated fan deposition is more evident in the late Holocene. There is a general bias towards sediment units of late Holocene age, which probably reflects preservation factors. Previous British Holocene alluviation models are reviewed: it is suggested that the majority of earlier models reflect partial views imposed by limited regional coverage and available dating.Peer reviewe
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Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record
Quaternary Science Reviews, 2005Co-Authors: John Lewin, Mark G. Macklin, E. JohnstoneAbstract:Abstract A Holocene alluvial archive of 506 dated units for Great Britain is analysed in terms of the sedimentation styles involved. The database is classified by sedimentation unit (channel sediments, palaeochannel fills, floodplain surface sediments, floodbasins and colluvial deposits) and alluvial ensemble (fans and cones, upland gullies and streams, braided systems and active/inactive meandering and anastomosing systems). Floodplain, palaeochannel and floodbasin sediments dominate the record, mostly from meandering/anastomosing systems. Different sediment units show varied potential for recording Environmental change: some are relatively poorly dated with respect to the volumes of material involved, whilst many dates ‘float’ in periods of depositional activity which lasted for extended time periods. Much dated activity is autogenic and of relatively little value in interpreting External Environmental Influence. Ensembles and units are similar in age patterns in some respects (commonly they exhibit sets of short-term peaks in sedimentation activity) but differ in others. Floodbasins and, to an extent, braided systems feature in the earlier Holocene, whilst dated fan deposition is more evident in the late Holocene. There is a general bias towards sediment units of late Holocene age, which probably reflects preservation factors. Previous British Holocene alluviation models are reviewed: it is suggested that the majority of earlier models reflect partial views imposed by limited regional coverage and available dating.
Chao Huang - One of the best experts on this subject based on the ideXlab platform.
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iThings/GreenCom/CPSCom/SmartData - An Adaptive Weighted Alternating Minimization Algorithm for Color Images Reconstruction In the Field of Automation
2018 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber Physical and , 2018Co-Authors: Chao Huang, Huiyuan Zhou, Xiangyue ZhouAbstract:Along with the developing of digital image processing technology, there are more and more applications of digital images in the field of automation. However, during the process of the imaging, acquisition and transmission, digital images are often degraded due to the noise and other External Environmental Influence. This eventually leads to quite a lot of difficulties for the application of these degraded images in actual automation production. In a total variation (TV) minimization framework, the novel algorithm is designed to establish a connection between an alternating minimization method and half-quadratic regularization for color images reconstruction. Our contributions are threefold. Firstly, the novel algorithm uses the idea of a new bisection which shows a strong convergence while preserving texture details. Secondly, the proposed algorithm is able to determine optimal value of the regularization parameter automatically and converges with the speed of $2^{k}$ . Lastly, our approach is quite general and has strong adaptation and robustness ability during the process of color image reconstruction.
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An Adaptive Weighted Alternating Minimization Algorithm for Color Images Reconstruction In the Field of Automation
2018 IEEE International Conference on Internet of Things (iThings) and IEEE Green Computing and Communications (GreenCom) and IEEE Cyber Physical and , 2018Co-Authors: Chao Huang, Huiyuan Zhou, Xiangyue ZhouAbstract:Along with the developing of digital image processing technology, there are more and more applications of digital images in the field of automation. However, during the process of the imaging, acquisition and transmission, digital images are often degraded due to the noise and other External Environmental Influence. This eventually leads to quite a lot of difficulties for the application of these degraded images in actual automation production. In a total variation (TV) minimization framework, the novel algorithm is designed to establish a connection between an alternating minimization method and half-quadratic regularization for color images reconstruction. Our contributions are threefold. Firstly, the novel algorithm uses the idea of a new bisection which shows a strong convergence while preserving texture details. Secondly, the proposed algorithm is able to determine optimal value of the regularization parameter automatically and converges with the speed of 2k. Lastly, our approach is quite general and has strong adaptation and robustness ability during the process of color image reconstruction.
Mark G. Macklin - One of the best experts on this subject based on the ideXlab platform.
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Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record
Quaternary Science Reviews, 2020Co-Authors: John Lewin, Mark G. Macklin, E. JohnstoneAbstract:Lewin, John, Macklin, M.G., Johnstone, E., (2005) 'Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record', Quaternary Science Reviews 24(16-17) pp.1873-1889 RAE2008A Holocene alluvial archive of 506 dated units for Great Britain is analysed in terms of the sedimentation styles involved. The database is classified by sedimentation unit (channel sediments, palaeochannel fills, floodplain surface sediments, floodbasins and colluvial deposits) and alluvial ensemble (fans and cones, upland gullies and streams, braided systems and active/inactive meandering and anastomosing systems). Floodplain, palaeochannel and floodbasin sediments dominate the record, mostly from meandering/anastomosing systems. Different sediment units show varied potential for recording Environmental change: some are relatively poorly dated with respect to the volumes of material involved, whilst many dates ?float? in periods of depositional activity which lasted for extended time periods. Much dated activity is autogenic and of relatively little value in interpreting External Environmental Influence. Ensembles and units are similar in age patterns in some respects (commonly they exhibit sets of short-term peaks in sedimentation activity) but differ in others. Floodbasins and, to an extent, braided systems feature in the earlier Holocene, whilst dated fan deposition is more evident in the late Holocene. There is a general bias towards sediment units of late Holocene age, which probably reflects preservation factors. Previous British Holocene alluviation models are reviewed: it is suggested that the majority of earlier models reflect partial views imposed by limited regional coverage and available dating.Peer reviewe
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Interpreting alluvial archives: sedimentological factors in the British Holocene fluvial record
Quaternary Science Reviews, 2005Co-Authors: John Lewin, Mark G. Macklin, E. JohnstoneAbstract:Abstract A Holocene alluvial archive of 506 dated units for Great Britain is analysed in terms of the sedimentation styles involved. The database is classified by sedimentation unit (channel sediments, palaeochannel fills, floodplain surface sediments, floodbasins and colluvial deposits) and alluvial ensemble (fans and cones, upland gullies and streams, braided systems and active/inactive meandering and anastomosing systems). Floodplain, palaeochannel and floodbasin sediments dominate the record, mostly from meandering/anastomosing systems. Different sediment units show varied potential for recording Environmental change: some are relatively poorly dated with respect to the volumes of material involved, whilst many dates ‘float’ in periods of depositional activity which lasted for extended time periods. Much dated activity is autogenic and of relatively little value in interpreting External Environmental Influence. Ensembles and units are similar in age patterns in some respects (commonly they exhibit sets of short-term peaks in sedimentation activity) but differ in others. Floodbasins and, to an extent, braided systems feature in the earlier Holocene, whilst dated fan deposition is more evident in the late Holocene. There is a general bias towards sediment units of late Holocene age, which probably reflects preservation factors. Previous British Holocene alluviation models are reviewed: it is suggested that the majority of earlier models reflect partial views imposed by limited regional coverage and available dating.
