0000000000522833

AUTHOR

Aggelos K. Katsaggelos

0000-0003-4554-0070

showing 2 related works from this author

Interactive Pansharpening and Active Classification in Remote Sensing

2013

This chapter presents two multimodal prototypes for remote sensing image classification where user interaction is an important part of the system. The first one applies pansharpening techniques to fuse a panchromatic image and a multispectral image of the same scene to obtain a high resolution (HR) multispectral image. Once the HR image has been classified the user can interact with the system to select a class of interest. The pansharpening parameters are then modified to increase the system accuracy for the selected class without deteriorating the performance of the classifier on the other classes. The second prototype utilizes Bayesian modeling and inference to implement active learning …

ComputingMethodologies_PATTERNRECOGNITIONContextual image classificationKernel (image processing)PixelComputer scienceMultispectral imageComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONDecision boundaryLinear discriminant analysisClassifier (UML)Panchromatic filmRemote sensing
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Passive millimeter wave image classification with large scale Gaussian processes

2017

Passive Millimeter Wave Images (PMMWIs) are being increasingly used to identify and localize objects concealed under clothing. Taking into account the quality of these images and the unknown position, shape, and size of the hidden objects, large data sets are required to build successful classification/detection systems. Kernel methods, in particular Gaussian Processes (GPs), are sound, flexible, and popular techniques to address supervised learning problems. Unfortunately, their computational cost is known to be prohibitive for large scale applications. In this work, we present a novel approach to PMMWI classification based on the use of Gaussian Processes for large data sets. The proposed…

HyperparameterContextual image classificationbusiness.industryComputer scienceSupervised learning0211 other engineering and technologiesInferencePattern recognition02 engineering and technologysymbols.namesakeBayes' theoremKernel (linear algebra)Kernel methodKernel (statistics)0202 electrical engineering electronic engineering information engineeringsymbols020201 artificial intelligence & image processingArtificial intelligencebusinessGaussian process021101 geological & geomatics engineering2017 IEEE International Conference on Image Processing (ICIP)
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