منابع مشابه
Active-meshes
This paper describes the implementation of an `active-mesh' that is to be automatically created and con®gured directly from a single frame of an image sequence. The aim of this approach is to use the derived mesh to perform visual tracking in unconstrained motion environments, allowing movement of the camera, the scene and even the inclusion of background-independent moving objects. The main pr...
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Developed largely by Kass et al (1), snakes are active contour models, using an energy-minimising spline that can help solve numerous computer vision problems, such as the analysis of dynamic image data, image segmentation and image understanding. The model is described as active since it is always attempting to minimise its energy function, hence showing dynamic behaviour. Snakes are an exampl...
متن کاملComputing the Reeb Graph for Triangle Meshes with Active Contours
This paper illustrates a novel method to compute the Reeb graph for triangle meshes. The algorithm is based on the definition of discrete, active contours as counterparts of continuous level lines. Active contours are made up of edges and vertices with multiple presence and implicitly maintain a faithful representation of the level lines, even in case of coarse meshes with higher genus. This ap...
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Recent advances in bioimaging have allowed to observe biological phenomena in three dimensions in a precise and automated fashion. However, the analysis of depth-stacks acquired in fluorescence microscopy constitutes a challenging task and motivates the development of robust methods. Automated computational schemes to process 3D multi-cell images from High Content Screening (HCS) experiments ar...
متن کاملAnalysis-synthesis Scheme Using Active Meshes for Wavelet Video Coding
This article presents an analysis-synthesis scheme using 2D deformable meshes for video coding. The analysis stage allows to decouple the motion from the texture and to code each information independently. The motion is represented by a 2D deformable mesh which provides long term tracking of the texture. The texture frames are extracted by motion-compensating the frames on a reference grid and ...
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ژورنال
عنوان ژورنال: Pattern Recognition Letters
سال: 2000
ISSN: 0167-8655
DOI: 10.1016/s0167-8655(00)00069-6