Browsing Cyfrifiadureg / Computer Science by Author "Zwiggelaar, Reyer"

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  • Qi, Da; Denton, Erika R. E.; Leason, Joanna M. E.; Othman, Diaa; Zwiggelaar, Reyer (2008)
    In this paper, we describe the evaluation of the effects of mammographic semantic information in breast cancer diagnoses. A brief description of relations between semantic information and image features are given. We ...
  • MacParthaláin, Neil Seosamh; Jensen, Richard; Shen, Qiang; Zwiggelaar, Reyer (2010-03-15)
    The accuracy of methods for the assessment of mammographic risk analysis is heavily related to breast tissue characteristics. Previous work has demonstrated considerable success in developing an automatic breast tissue ...
  • Crocker, Matthew; Saadoun, Samira; Jury, Alexa; Jones, Chris; Zacharoulis, Stergios; Zwiggelaar, Reyer; Bridges, Leslie R.; Bell, B. Anthony; Papadopoulos, Marios C. (2012-05-05)
    Tumor vasculature is a promising therapeutic target in glioblastoma. Imaging tumor blood flow may help assess the efficacy of anti-angiogenic treatments. We determined the clinical usefulness of stable xenon CT performed ...
  • Crocker, Matthew; Saadoun, Samira; Jury, Alexa; Jones, Chris; Zacharoulis, Stergios; Zwiggelaar, Reyer; Bridges, Leslie R.; Bell, B. Anthony; Papadopoulos, Marios C. (2012-05-05)
    Tumor vasculature is a promising therapeutic target in glioblastoma. Imaging tumor blood flow may help assess the efficacy of anti-angiogenic treatments. We determined the clinical usefulness of stable xenon CT performed ...
  • Zhu, Yanong; Williams, Stuart; Zwiggelaar, Reyer (2007)
    Three-Dimensional (3D) Active Shape Modeling (ASM) is a straightforward extension of 2D ASM. 3D ASM is robust when true volumetric data is considered. However, when the information in one dimension is sparse, pure 3D ASM ...
  • Zhu, Yanong; Williams, Stuart; Zwiggelaar, Reyer (2007)
    Three-Dimensional (3D) Active Shape Modeling (ASM) is a straightforward extension of 2D ASM. 3D ASM is robust when true volumetric data is considered. However, when the information in one dimension is sparse, pure 3D ASM ...
  • Stafford, J. V.; Zwiggelaar, Reyer; Bull, C. R. (1995)
    This paper discusses the potential of using vision systems to monitor and control arable farming operations. Several examples, predominately concerned with the detection of weeds in crops, that have been or are being ...
  • Stafford, J. V.; Zwiggelaar, Reyer; Bull, C. R. (1995)
    This paper discusses the potential of using vision systems to monitor and control arable farming operations. Several examples, predominately concerned with the detection of weeds in crops, that have been or are being ...
  • Bull, C. R.; McFarlane, N. J. B.; Zwiggelaar, Reyer; Allen, C. J.; Mottram, T. T. (1996-05-01)
    In order to implement robotic milking it is necessary to automate the inspection and cleaning of cow teats prior to milking. This paper assesses the potential of detecting manure on teats using information from a colour ...
  • Bull, C. R.; McFarlane, N. J. B.; Zwiggelaar, Reyer; Allen, C. J.; Mottram, T. T. (1996-05-01)
    In order to implement robotic milking it is necessary to automate the inspection and cleaning of cow teats prior to milking. This paper assesses the potential of detecting manure on teats using information from a colour ...
  • Strange, Harry; Zwiggelaar, Reyer (2010-09)
    We present a framework for the reduction of dimensionality of a data set via manifold learning. Using the building blocks of local hyperplanes we show how a global manifold can be reconstructed by iteratively merging these ...
  • Strange, Harry; Zwiggelaar, Reyer (2010-09)
    We present a framework for the reduction of dimensionality of a data set via manifold learning. Using the building blocks of local hyperplanes we show how a global manifold can be reconstructed by iteratively merging these ...
  • Boggis, C. R. M.; Taylor, C. J.; Astley, S. M.; Zwiggelaar, Reyer (2004)
    We describe methods for detecting linear structures in mammograms, and for classifying them into anatomical types (vessels, spicules, ducts, etc). Several different detection methods are compared, using realistic synthetic ...
  • Boggis, C. R. M.; Taylor, C. J.; Astley, S. M.; Zwiggelaar, Reyer (2004)
    We describe methods for detecting linear structures in mammograms, and for classifying them into anatomical types (vessels, spicules, ducts, etc). Several different detection methods are compared, using realistic synthetic ...
  • Chen, Zhili (Aberystwyth UniversityComputer Science, 2013)
    ABSTRACT Breast cancer is currently the most common cancer among women worldwide. Mammography has been the most reliable and e ective screening tool for the early detection of breast cancer. Recently, computer-aided ...
  • He, Wenda; Denton, Erika R.E.; Stafford, Kirsten; Zwiggelaar, Reyer (2011-07)
    Mammographic risk assessment is becoming increasingly important in decision making in screening mammography and computer aided diagnosis systems. Strong evidence shows that characteristic patterns of breast tissue as seen ...
  • He, Wenda; Denton, Erika R.E.; Stafford, Kirsten; Zwiggelaar, Reyer (2011-07)
    Mammographic risk assessment is becoming increasingly important in decision making in screening mammography and computer aided diagnosis systems. Strong evidence shows that characteristic patterns of breast tissue as seen ...
  • Zwiggelaar, Reyer; Parr, T. C.; Schumm, J. E.; Hutt, I. W.; Taylor, C. J.; Astley, S. M.; Boggis, C. R. M. (1999)
    Computer-aided mammographic prompting systems require the reliable detection of a variety of signs of cancer. In this paper we concentrate on the detection of spiculated lesions in mammograms. A spiculated lesion is typically ...
  • Zwiggelaar, Reyer; Parr, T. C.; Schumm, J. E.; Hutt, I. W.; Taylor, C. J.; Astley, S. M.; Boggis, C. R. M. (1999)
    Computer-aided mammographic prompting systems require the reliable detection of a variety of signs of cancer. In this paper we concentrate on the detection of spiculated lesions in mammograms. A spiculated lesion is typically ...
  • Onyango, Christine M.; Marchant, John A.; Zwiggelaar, Reyer (1997-06)
    No absolute certainty can be given for information derived from images. In most cases image analysis uses single algorithms, or multiple single algorithms' results which are combined in an ad hoc manner, to derive certain ...

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