Emanuel E. Zelniker

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The accurate fitting of a circle to noisy measurements of points on its circumference is an important and much-studied problem in statistics. ATHERTON & KERBYSON (Image and Vision Computing 17, 1999, 795-803) have proposed a complex convolutional circle parameter estimator. One of the es-timators proposed is a 'Phase-Coded Annulus' to estimate for the(More)
A method for the automatic detection and vectorisation of roads from LIDAR data is presented that extracts roads from a LIDAR point cloud using a hierarchical classification technique and vectorises the classification result by convolving it with a complex-valued disk. ABSTRACT: A method for the automatic detection and vectorisation of roads from LIDAR data(More)
In the subcortex of the human brain, neuronal firing events are stochastic and the inter-arrival times of action potentials (APs) are highly irregular. It has been shown that stimulation of the subthalamic nucleus (STN), a small subcortical structure located within the basal ganglia, can help ameliorate the motor symptoms associated with Parkinson's disease(More)
ii Except where acknowledged in the customary manner, the material presented in this thesis is to the best of my knowledge original and has not been submitted in whole or part for a degree in any university. iii iv Acknowledgements This thesis and the time spent developing it have benefited from the support of many kind and inspirational people. First I(More)
The accurate fitting of a circle to noisy measurements of circumferential points is a much studied problem in the literature. In this paper, we present an interpretation of the maximum-likelihood estimator (MLE) and the DELOGNE-K ˚ ASA estimator (DKE) for circle-centre and radius estimation in terms of convolution on an image which is ideal in a certain(More)
In this paper, we examine the problem of fitting a hypersphere to a set of noisy measurements of points on its surface. Our work generalises an estimator of DELOGNE (Proc. IMEKO-Symp. Microwave Measurements 1972, 117-123) which he proposed for circles and which has been shown by Kåsa (IEEE Trans. Instrum. to be convenient for its ease of analysis and(More)
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