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- Constellation_model abstract "The constellation model is a probabilistic, generative model for category-level object recognition in computer vision. Like other part-based models, the constellation model attempts to represent an object class by a set of N parts under mutual geometric constraints. Because it considers the geometric relationship between different parts, the constellation model differs significantly from appearance-only, or \"bag-of-words\" representation models, which explicitly disregard the location of image features.The problem of defining a generative model for object recognition is difficult. The task becomes significantly complicated by factors such as background clutter, occlusion, and variations in viewpoint, illumination, and scale. Ideally, we would like the particular representation we choose to be robust to as many of these factors as possible.In category-level recognition, the problem is even more challenging because of the fundamental problem of intra-class variation. Even if two objects belong to the same visual category, their appearances may be significantly different. However, for structured objects such as cars, bicycles, and people, separate instances of objects from the same category are subject to similar geometric constraints. For this reason, particular parts of an object such as the headlights or tires of a car still have consistent appearances and relative positions. The Constellation Model takes advantage of this fact by explicitly modeling the relative location, relative scale, and appearance of these parts for a particular object category. Model parameters are estimated using an unsupervised learning algorithm, meaning that the visual concept of an object class can be extracted from an unlabeled set of training images, even if that set contains \"junk\" images or instances of objects from multiple categories. It can also account for the absence of model parts due to appearance variability, occlusion, clutter, or detector error.".
- Constellation_model wikiPageExternalLink lecture7_ConstellationModel_shortversion.pdf.
- Constellation_model wikiPageID "15261618".
- Constellation_model wikiPageLength "21792".
- Constellation_model wikiPageOutDegree "22".
- Constellation_model wikiPageRevisionID "680380537".
- Constellation_model wikiPageWikiLink Bag-of-words_model.
- Constellation_model wikiPageWikiLink Category:Learning_in_computer_vision.
- Constellation_model wikiPageWikiLink Category:Probabilistic_models.
- Constellation_model wikiPageWikiLink Computer_vision.
- Constellation_model wikiPageWikiLink Corner_detection.
- Constellation_model wikiPageWikiLink Expectation–maximization_algorithm.
- Constellation_model wikiPageWikiLink Feature_(computer_vision).
- Constellation_model wikiPageWikiLink Feature_detection_(computer_vision).
- Constellation_model wikiPageWikiLink Generative_model.
- Constellation_model wikiPageWikiLink Interest_point_detection.
- Constellation_model wikiPageWikiLink K-means_clustering.
- Constellation_model wikiPageWikiLink One-shot_learning.
- Constellation_model wikiPageWikiLink Part-based_models.
- Constellation_model wikiPageWikiLink Poisson_distribution.
- Constellation_model wikiPageWikiLink Principal_component_analysis.
- Constellation_model wikiPageWikiLink Sufficient_statistic.
- Constellation_model wikiPageWikiLink Unsupervised_learning.
- Constellation_model wikiPageWikiLink Vector_quantization.
- Constellation_model wikiPageWikiLinkText "Constellation model".
- Constellation_model wikiPageWikiLinkText "constellation model".
- Constellation_model wikiPageUsesTemplate Template:Reflist.
- Constellation_model subject Category:Learning_in_computer_vision.
- Constellation_model subject Category:Probabilistic_models.
- Constellation_model hypernym Model.
- Constellation_model type Person.
- Constellation_model type Redirect.
- Constellation_model comment "The constellation model is a probabilistic, generative model for category-level object recognition in computer vision. Like other part-based models, the constellation model attempts to represent an object class by a set of N parts under mutual geometric constraints.".
- Constellation_model label "Constellation model".
- Constellation_model sameAs Q5163937.
- Constellation_model sameAs m.03hnhty.
- Constellation_model sameAs Q5163937.
- Constellation_model wasDerivedFrom Constellation_model?oldid=680380537.
- Constellation_model isPrimaryTopicOf Constellation_model.