000184986 001__ 184986
000184986 005__ 20190316235613.0
000184986 037__ $$aSTUDENT
000184986 245__ $$aSparse Binary Features for Image Classification
000184986 269__ $$a2013
000184986 260__ $$c2013
000184986 336__ $$aStudent Projects
000184986 520__ $$aIn this work a new method for automatic image classification is proposed. It relies on a compact representation of images using sets of sparse binary features. <br/><br/> This work first evaluates the Fast Retina Keypoint binary descriptor and proposes improvements based on an efficient descriptor representation. The efficient representation is created using dimensionality reduction techniques, entropy analysis and decorrelated sampling. <br/><br/> In a second part, the problem of image classification is tackled. The traditional approach uses machine learning algorithms to create classifiers, and some works already propose to use a compact image representation using feature extraction as preprocessing. The second contribution of this work is to show that binary features, while being very compact and low dimensional (compared to traditional representation of images), still provide a very high discriminant power. This is shown using various learning algorithms and binary descriptors. <br/><br/> These years a scheme has been widely used to perform object recognition on images, or equivalently image classification. It is based on the concept of Bag of Visual Words. More precisely, an image is described using an unordered set of visual words, that are generally represented by feature descriptions. The last contribution of this work is to use binary features with a simple Bag of Visual Words classifier. Tests of performance for the image classification are performed on a large database of images.
000184986 6531_ $$aBinary features
000184986 6531_ $$aImage classification
000184986 6531_ $$aFREAK
000184986 700__ $$0247305$$g174659$$aParatte, Johann
000184986 720_2 $$aVandergheynst, Pierre$$edir.$$g120906$$0240428
000184986 8564_ $$uhttps://infoscience.epfl.ch/record/184986/files/MasterThesis_JohanPARATTE.pdf$$zn/a$$s4495340$$yn/a
000184986 909C0 $$xU10380$$0252392$$pLTS2
000184986 909CO $$qGLOBAL_SET$$pSTI$$ooai:infoscience.tind.io:184986
000184986 917Z8 $$x174659
000184986 937__ $$aEPFL-STUDENT-184986
000184986 973__ $$aEPFL
000184986 980__ $$bMASTERS$$aSTUDENT