About: Condensation algorithm

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The condensation algorithm (Conditional Density Propagation) is a computer vision algorithm. The principal application is to detect and track the contour of objects moving in a cluttered environment. Object tracking is one of the more basic and difficult aspects of computer vision and is generally a prerequisite to object recognition. Being able to identify which pixels in an image make up the contour of an object is a non-trivial problem. Condensation is a probabilistic algorithm that attempts to solve this problem.

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rdf:type	software
rdfs:label	Condensation algorithm (en)
rdfs:comment	The condensation algorithm (Conditional Density Propagation) is a computer vision algorithm. The principal application is to detect and track the contour of objects moving in a cluttered environment. Object tracking is one of the more basic and difficult aspects of computer vision and is generally a prerequisite to object recognition. Being able to identify which pixels in an image make up the contour of an object is a non-trivial problem. Condensation is a probabilistic algorithm that attempts to solve this problem. (en)
dcterms:subject	Computer vision
Wikipage page ID	1571780 (xsd:integer)
Wikipage revision ID	969762486 (xsd:integer)
Link from a Wikipage to another Wikipage	B-splines Multimodal distribution Particle filter Deterministic Vector (mathematics and physics) Standard deviation Generative model Moment (mathematics) Conditional probability distribution Andrew Blake (scientist) MATLAB Stochastic Computer vision C (programming language) Computer vision Facial recognition system Normal distribution Principal component analysis Object recognition Kalman filtering Video tracking Difference equation Maximum Likelihood Estimation Independence (probability theory) OpenCV Robot localization Gesture recognition Joint distribution Poisson random process Probabilistic algorithm Monte-Carlo method
Link from a Wikipage to an external page	http://answers.opencv.org/question/6985/syntax-for-particle-filter-in-opencv-243/ http://www.mathworks.com/matlabcentral/fileexchange/22320-conditional-density-propagation-tracker--1-dimenstional- https://web.archive.org/web/20081013200532/http:/www.robots.ox.ac.uk/~misard/condensation.html
sameAs	Condensation algorithm Condensation algorithm Condensation algorithm Condensation algorithm
dbp:wikiPageUsesTemplate	dbt:Reflist
has abstract	The condensation algorithm (Conditional Density Propagation) is a computer vision algorithm. The principal application is to detect and track the contour of objects moving in a cluttered environment. Object tracking is one of the more basic and difficult aspects of computer vision and is generally a prerequisite to object recognition. Being able to identify which pixels in an image make up the contour of an object is a non-trivial problem. Condensation is a probabilistic algorithm that attempts to solve this problem. The algorithm itself is described in detail by Isard and Blake in a publication in the International Journal of Computer Vision in 1998. One of the most interesting facets of the algorithm is that it does not compute on every pixel of the image. Rather, pixels to process are chosen at random, and only a subset of the pixels end up being processed. Multiple hypotheses about what is moving are supported naturally by the probabilistic nature of the approach. The evaluation functions come largely from previous work in the area and include many standard statistical approaches. The original part of this work is the application of particle filter estimation techniques. The algorithm’s creation was inspired by the inability of Kalman filtering to perform object tracking well in the presence of significant background clutter. The presence of clutter tends to produce probability distributions for the object state which are multi-modal and therefore poorly modeled by the Kalman filter. The condensation algorithm in its most general form requires no assumptions about the probability distributions of the object or measurements. (en)
gold:hypernym	Algorithm
prov:wasDerivedFrom	wikipedia-en:Condensation_algorithm?oldid=969762486&ns=0
page length (characters) of wiki page	12567 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Condensation_algorithm
is Link from a Wikipage to another Wikipage of	Particle filter Video tracking Condensation (disambiguation)
is Wikipage disambiguates of	Condensation (disambiguation)
is foaf:primaryTopic of	wikipedia-en:Condensation_algorithm

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