Neil Duffy

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A n e w general solution for the construction of one-to-one image warping functions is presented. The algorithm takes a set of user speciied translations and constructs a set of one-to-one warps by interpolation and scaling. These are concatenated to produce a single one-to-one warping function, which prevents overlap in the resultant w arped image.
We present a new calibration method for a structured light surface scanner. The new method uses a model-based calibration, accounting for laser stripe and translation stage alignment and the internal and external camera parameters. The inclusion of non-linear radial distortion in the camera model gives an improvement in the calibration accuracy over a(More)
This paper presents a new method for the construction of three-dimensional (3D) probabilistic facial averages and demonstrates the potential for applications in clinical craniofacial research and patient assessment. Averages are constructed from a database of registered laser-range scans and photographic images using feature based image warping. Facial(More)
Methods for the synthesis of new three-dimensional facial images from a database of texture-mapped laser-scanned surfaces are described. Four methods are used to create new facial images. The rst constructs average facial images from a sample of faces. The second exaggerates the diierence between a subject and an average to create a caricature. The third(More)
Chronic back pain is a global health problem affecting millions of people worldwide and carries significant economic and social morbidities. Intervertebral disc damage and degeneration is a major cause of back pain, characterised by histological and biochemical changes that have been well documented in animal models. Recently there has been intense interest(More)
  • Gall, Robyn Gall, Richard Denniston, Natalie Hookway, Jane Galvin, D H Kothari +11 others
  • 2005
1 The PEDI has better psychometric properties than the WeeFIM, and is therefore the instrument of choice for measuring individual self care outcomes in children with acquired brain injury aged between 6 months and 7.5 years There is increasing emphasis on evaluation of therapy outcomes by occupational therapists working with children recovering from(More)
This paper presents an original method of modelling the colour distributions of images using 2D Gaussian functions and its application to flaw detection in industrial inspection. 2D Gaussian functions are used to model the colours that appear in the non-flawed images in an unsupervised manner. Pixels under test are compared to the colour distribution from(More)
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