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Using appearance and context for outdoor scene object classification

We propose a probabilistic object classifier for outdoor scene analysis as a first step in solving the problem of scene context generation. The method begins with a top-down control, which uses the previously learned models (appearance and absolute location) to obtain an initial pixel-level classification. This information provides us the core of objects, which is used to acquire a more accurate object model. Therefore, their growing by specific active regions allows us to obtain an accurate recognition of known regions. Next, a stage of general segmentation provides the segmentation of unknown regions by a bottom-strategy. Finally, the last stage tries to perform a region fusion of known and unknown segmented objects. The result is both a segmentation of the image and a recognition of each segment as a given object class or as an unknown segmented object. Furthermore, experimental results are shown and evaluated to prove the validity of our proposal

IEEE

Author: Bosch Rué, Anna
Muñoz Pujol, Xavier
Martí Bonmatí, Joan
Abstract: We propose a probabilistic object classifier for outdoor scene analysis as a first step in solving the problem of scene context generation. The method begins with a top-down control, which uses the previously learned models (appearance and absolute location) to obtain an initial pixel-level classification. This information provides us the core of objects, which is used to acquire a more accurate object model. Therefore, their growing by specific active regions allows us to obtain an accurate recognition of known regions. Next, a stage of general segmentation provides the segmentation of unknown regions by a bottom-strategy. Finally, the last stage tries to perform a region fusion of known and unknown segmented objects. The result is both a segmentation of the image and a recognition of each segment as a given object class or as an unknown segmented object. Furthermore, experimental results are shown and evaluated to prove the validity of our proposal
Document access: http://hdl.handle.net/2072/58988
Language: eng
Publisher: IEEE
Rights: Tots els drets reservats
Subject: Discriminació visual
Imatges -- Processament
Imatges -- Segmentació
Reconeixement òptic de formes
Visió per ordinador
Computer vision
Image processing
Imaging segmentation
Optical pattern recognition
Visual discrimination
Title: Using appearance and context for outdoor scene object classification
Type: info:eu-repo/semantics/article
Repository: Recercat

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