Purpose: This qualitative systematic review had two aims: (1) evaluation of the impact of restorative treatment on tooth contour, and (2) investigation of the effect of altered tooth contour on biological health. Methods: An electronic search was conducted using PubMed (MEDLINE), Cochrane Library and Google Scholar. A combination of relevant key words was applied. The search was completed in Oc...

The contour tree is an abstraction of a scalar field that encodes the nesting relationships of isosurfaces. We show how to use the contour tree to represent individual contours of a scalar field, how to simplify both the contour tree and the topology of the scalar field, how to compute and store geometric properties for all possible contours in the contour tree, and how to use the simplified co...

The parametric active contour models are widely used in computer vision and image processing. This paper reviews the research status of parametric active contour models in the past decade. The parametric active contour models have gained wide attention for a long time. First, the traditional snake and some typical modified models are introduced. Second, the parametric active contour models appl...

In recent years, mutual information has developed as a popular image registration measure especially in multimodality image registration. For different modality medical images, the contour of tissues or organs is similarity. In this paper, an effective new registration method of the multimodal medical images based on the contour mutual information is proposed. Firstly, get the contour through v...

This paper describes an approach to generating prosody parameters for Mandarin Chinese text-to-speech system. The Chinese fundamental frequency contour is decomposed into two parts, a global intonation contour and a syllable level tone contour. The global intonation contour is converted to pitch target labels in corpus. It is predicted by first predicting pitch target labels using statistical m...

Active contour models based on local region fitting energy can segment images with intensity inhomogeneity effectively, but their segmentation results are easy to error if the initial contour is inappropriate. In this paper, we present a simple and universal method of improving the robustness of initial contour for these local fitting-based models. The core idea of proposed method is exchanging...

In this thesis, I show how to use the topological information encoded in an abstraction called the contour tree to enable interactive manipulation of individual contour surfaces in an isosurface scene, using an interface called the flexible isosurface. Underpinning this interface are several improvements and extensions to existing work on the contour tree. The first, and most critical, extensio...

In this thesis, I show how to use the topological information encoded in an abstraction called the contour tree to enable interactive manipulation of individual contour surfaces in an isosurface scene, using an interface called the flexible isosurface. Underpinning this interface are several improvements and extensions to existing work on the contour tree. The first, and most critical, extensio...

In this paper a contour matching based face recognition system is proposed, which uses “Fourier Descriptor of contour” for identification of faces. The feasibility of using contour and FD’s matching for human face identification is presented through experiment. The Fourier descriptor is used to describe the boundary of a shape in 2 dimensional space.The advantage of using the Fourier descriptor...