PRL
1998
14 years 3 days ago
1998
PRL
1998
14 years 3 days ago
1998
We present a computational, group-theoretic approach to steerable functions. The approach is group-theoretic in that the treatment involves continuous transformation groups for wh...
PRL
1998
14 years 3 days ago
1998
A single parameter value that represents the difference between the original and the digitized characters is determined from a binary scan of a test chart. It represents the combi...
PRL
1998
14 years 3 days ago
1998
Surprisingly simple local learning algorithms are known to outperform many other global non-linear machines. Unfortunately, these algorithms are computationally costly. A means of...
PRL
1998
14 years 3 days ago
1998
This paper describes a novel approach to surface tracking in volumetric image stacks. It draws on a statistical model of the uncertainties inherent in the characterisation of feat...
PRL
1998
14 years 3 days ago
1998
An alternative to representing curves at a single scale or a fixed number of multiple scales is to represent them only at their natural (i.e. most significant) scales. This allo...
PRL
1998
14 years 3 days ago
1998
In this paper we propose an encoding scheme and ad hoc operators for a genetic approach to hierarchical graph clustering. Given a connected graph whose vertices correspond to poin...
PRL
1998
14 years 3 days ago
1998
Thinning is a frequently used method for extracting skeletons in discrete spaces. This paper presents an efficient parallel Žthinning algorithm that directly extracts medial line...
PRL
1998
14 years 3 days ago
1998
PRL
1998
14 years 3 days ago
1998
A new approach for implementing filters based on order statistics is proposed in this letter. As an illustration realisations of range, a-trimmed mean and WMMR filters are present...