A “Shape Aware” Model for semi-supervised Learning of Objects and its Context

Loading...
Thumbnail Image
Penn collection
Departmental Papers (CIS)
Degree type
Discipline
Subject
Computer Sciences
Funder
Grant number
License
Copyright date
Distributor
Related resources
Author
Gupta, Abhinav
Davis, Larry
Contributor
Abstract

We present an approach that combines bag-of-words and spatialmodels to perform semantic and syntactic analysis for recognition of an object based on its internal appearance and its context. We argue that while object recognition requires modeling relative spatial locations of image features within the object, a bag-of-word is sufficient for representing context. Learning such a model from weakly labeled data involves labeling of features into two classes: foreground(object) or “informative” background(context). We present a “shape-aware” model which utilizes contour information for efficient and accurate labeling of features in the image. Our approach iterates between an MCMC-based labeling and contour based labeling of features to integrate co-occurrence of features and shape similarity.

Advisor
Date of presentation
2008-01-01
Conference name
Departmental Papers (CIS)
Conference dates
2023-05-17T07:09:01.000
Conference location
Date Range for Data Collection (Start Date)
Date Range for Data Collection (End Date)
Digital Object Identifier
Series name and number
Volume number
Issue number
Publisher
Publisher DOI
Journal Issue
Comments
A. Gupta, J. Shi, and L.S. Davis, A "Shape Aware" Model for semi-supervised Learning of Objects and its Context. ;In Proceedings of NIPS. 2008, 577-584.
Recommended citation
Collection