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Hierarchy-of-Visual-Words: a Learning-Based Approach for Trademark Image Retrieval.
Vítor N. Lourenço
Gabriela G. Silva
Leandro A. F. Fernandes
Published in:
SIBGRAPI (2019)
Keyphrases
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visual words
object categorization
bag of words
multiscale
learning algorithm
computer vision
object recognition
active learning
image processing
em algorithm
unsupervised learning
scene classification
object retrieval