Article history: Received 13 April 2007 Received in revised form 26 March 2008

This paper describes work in progress for recognizing a subset of ToBI intonation labels (H*, L+H*, L*, !H*, L+!H*, no accent). Initially, duration characteristics are used to classify syllables as accented or not. The accented syllables are then subclassified based on fundamental frequency, F0, values. Potential F0 intonation gestures are schematized by connected line segments within a window ...

We present a novel approach to parameterised curve detection. The method is based on the generalised Radon transform, which is traditionally applied to a 2D edge/line map. The novelty of our method is the mapping of the original 2D image to a 3D orientation space, which then forms the input for the Radon transform. The orientation space representation can represent multiple intersecting structu...

Duplicate document detection is the problem of finding all document-pairs rapidly whose similarities are equal to or greater than a given threshold. There is a method proposed recently called prefix-filter that finds document-pairs whose similarities never reach the threshold based on the number of uncommon terms (words/characters) in a document-pair and removes them before similarity calculati...

This paper proposed an edge detection scheme which is deduced from Fresnel diffraction. Analysis in this paper shows that Fresnel convolution kernel function performs well on edge enhancement when images are transformed into complex functions. Due to its mathematical complexity, the method is simplified into a linear convolution filter. The new edge detector is designed based on the simplified ...

Article history: Available online 15 September 2012

there are several varieties of edge detection method. edge detection and edge enhancement techniques play an essential role in interpreting potential field data. some of common methods are: tilt angle filter (ta), total horizontal derivative of tilt angle filter (thdt), theta filter, tdx filter, hyperbolic tilt angle (hta). these filters maximum values are when facing with the edge of an anomal...