@InProceedings{10.20532/ccvw.2013.0011, author = {Valentina Zadrija and Sini{\v s}a {\v S}egvi{\' c}}, title = {Multiclass Road Sign Detection using Multiplicative Kernel}, booktitle = {Proceedings of the Croatian Compter Vision Workshop, Year 1}, pages = {37-42}, year = 2013, editor = {Lon{\v c}ari{\' c}, Sven and {\v S}egvi{\' c}, Sini{\v s}a}, address = {Zagreb}, month = {September}, organization = {Center of Excellence for Computer Vision}, publisher = {University of Zagreb}, abstract = {We consider a problem of multiclass road sign detection using multiplicative kernel comprised from two kernels. We show that problems of detection and within-foreground classification can be jointly solved by using one kernel to measure object - background differences and another one to account for within-class variations. The main idea behind this approach is that road signs from different foreground variations can share features that discriminate them from backgrounds. As a model, we use SVM classifier, thus feature sharing is obtained through support vector sharing. Training yields a family of linear detectors, where each detector corresponds to a specific foreground training sample. However, there may be redundancy between various detectors, which is accounted for using k-medoids clustering technique. Finally, we report detection and classification results on a set of road sign images obtained from a camera on a moving vehicle.}, doi = {10.20532/ccvw.2013.0011}, url = {https://doi.org/10.20532/ccvw.2013.0011} }