Vesna Zeljkovic, Pavel Praks. Automatic Object Classification and Image Retrieval by Sobel Edge Detection and Latent Semantic Methods. In Luigi Atzori, Jaime Delgado, Daniele D. Giusto, editors, Mobile Multimedia Communications - 7th International ICST Conference, MOBIMEDIA 2011, Cagliari, Italy, September 5-7, 2011, Revised Selected Papers. Volume 79 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, pages 204-216, Springer, 2011. [doi]