Contextual Object Detection Using Set-Based Classification

Date

2012-01-01

Author

Cinbiş, Ramazan Gökberk
Sclaroff, Stan

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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We propose a new model for object detection that is based on set representations of the contextual elements. In this formulation, relative spatial locations and relative scores between pairs of detections are considered as sets of unordered items. Directly training classification models on sets of unordered items, where each set can have varying cardinality can be difficult. In order to overcome this problem, we propose SetBoost, a discriminative learning algorithm for building set classifiers. The SetBoost classifiers are trained to rescore detected objects based on object-object and object-scene context. Our method is able to discover composite relationships, as well as intra-class and inter-class spatial relationships between objects. The experimental evidence shows that our set-based formulation performs comparable to or better than existing contextual methods on the SUN and the VOC 2007 benchmark datasets.

Subject Keywords

Average precision, Object class, Context model, Reference object, Contextual relationship

URI

https://hdl.handle.net/11511/56664

Collections

Department of Computer Engineering, Conference / Seminar