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• Random_walker_algorithm abstract "The random walker algorithm is an algorithm for image segmentation. In the first description of the algorithm, a user interactively labels a small number of pixels with known labels (called seeds), e.g., "object" and "background". The unlabeled pixels are each imagined to release a random walker, and the probability is computed that each pixel's random walker first arrives at a seed bearing each label, i.e., if a user places K seeds, each with a different label, then it is necessary to compute, for each pixel, the probability that a random walker leaving the pixel will first arrive at each seed. This computation may be determined analytically by solving a system of linear equations. After computing these probabilities for each pixel, the pixel is assigned to the label for which it is most likely to send a random walker. The image is modeled as a graph, in which each pixel corresponds to a node which is connected to neighboring pixels by edges, and the edges are weighted to reflect the similarity between the pixels. Therefore, the random walk occurs on the weighted graph (see Doyle and Snell for an introduction to random walks on graphs).Although the initial algorithm was formulated as an interactive method for image segmentation, it has been extended to be a fully automatic algorithm, given a data fidelity term (e.g., an intensity prior). It has also been extended to other applications, such as Image Matching (R. Shen, I. Cheng, X.li and A. Basu), ICPR 2008, and Image Fusion, (R. Shen, I. Cheng, J.Shi and A. Basu), IEEE Trans. on Image Processing, 2011, and other applications.The algorithm was initially published as a conference paper and later as a journal paper.".
• Random_walker_algorithm wikiPageExternalLink fastrw.cs.sfu.ca.
• Random_walker_algorithm wikiPageExternalLink scikits-image.org.
• Random_walker_algorithm wikiPageExternalLink plot_random_walker_segmentation.html.
• Random_walker_algorithm wikiPageExternalLink random_walker_matlab_code.zip.
• Random_walker_algorithm wikiPageID "27073212".
• Random_walker_algorithm wikiPageRevisionID "602153345".
• Random_walker_algorithm hasPhotoCollection Random_walker_algorithm.
• Random_walker_algorithm subject Category:Image_segmentation.
• Random_walker_algorithm comment "The random walker algorithm is an algorithm for image segmentation. In the first description of the algorithm, a user interactively labels a small number of pixels with known labels (called seeds), e.g., "object" and "background".".
• Random_walker_algorithm label "Random walker algorithm".
• Random_walker_algorithm sameAs m.0dgr530.
• Random_walker_algorithm sameAs Q7292002.
• Random_walker_algorithm sameAs Q7292002.
• Random_walker_algorithm wasDerivedFrom Random_walker_algorithm?oldid=602153345.
• Random_walker_algorithm isPrimaryTopicOf Random_walker_algorithm.