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Papers by John Belward

Research paper thumbnail of A hybrid clough-tocher radial basis function method for modelling leaf surfaces

Research paper thumbnail of Application of Surface Fitting Techniques for the Representation of Leaf Surfaces

Research paper thumbnail of Boundary treatment for virtual leaf surfaces

Research paper thumbnail of Linking in vitro and in vivo models of digestion: a computational modelling approach

Research paper thumbnail of A variational approach to the radiometric enhancement of digital imagery

IEEE Transactions on Image Processing, 2000

In this correspondence, we present a variational approach to the problem of finding suitable radi... more In this correspondence, we present a variational approach to the problem of finding suitable radiometric image transformations that optimize desirable characteristics of the output image histogram. This variational approach can be interpreted as the minimization of the cumulative spacing between histogram bars in the least squares sense subject to some weight function. Most of the common histogram transformation procedures used in remote sensing applications can be deduced from this general variational approach with an appropriate choice of the weight function.

Research paper thumbnail of Agricultural Developmental Visualisation Interactive Software Environment

The quantum increase in computing power provided by contemporary parallel architectures o ers the... more The quantum increase in computing power provided by contemporary parallel architectures o ers the opportunity to confront problems of ever increasing complexity and size. With these developments new problems arise in techniques for the manipulation, transmission and display of large data sets as they occur for example in environmental modelling. The hardware and software of modern graphical display devices has the potential to enable large data sets to be presented in compact and informative con ...

Research paper thumbnail of A hybrid clough-tocher radial basis function method for modelling leaf surfaces

Research paper thumbnail of Application of Surface Fitting Techniques for the Representation of Leaf Surfaces

Research paper thumbnail of Boundary treatment for virtual leaf surfaces

Research paper thumbnail of Linking in vitro and in vivo models of digestion: a computational modelling approach

Research paper thumbnail of A variational approach to the radiometric enhancement of digital imagery

IEEE Transactions on Image Processing, 2000

In this correspondence, we present a variational approach to the problem of finding suitable radi... more In this correspondence, we present a variational approach to the problem of finding suitable radiometric image transformations that optimize desirable characteristics of the output image histogram. This variational approach can be interpreted as the minimization of the cumulative spacing between histogram bars in the least squares sense subject to some weight function. Most of the common histogram transformation procedures used in remote sensing applications can be deduced from this general variational approach with an appropriate choice of the weight function.

Research paper thumbnail of Agricultural Developmental Visualisation Interactive Software Environment

The quantum increase in computing power provided by contemporary parallel architectures o ers the... more The quantum increase in computing power provided by contemporary parallel architectures o ers the opportunity to confront problems of ever increasing complexity and size. With these developments new problems arise in techniques for the manipulation, transmission and display of large data sets as they occur for example in environmental modelling. The hardware and software of modern graphical display devices has the potential to enable large data sets to be presented in compact and informative con ...

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