Detecting and recognizing centerlines as parabolic sections of the steerable filter response

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Simulation of a Texas Hold'Em poker player

Copyright 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This is the accepted version of the article. The published version is available at

Pattern Spectra from Different Component Trees for Estimating Soil Size Distribution

We study the pattern spectra in context of soil structure analysis. Good soil structure is vital for sustainable crop growth. Accurate and fast measuring methods can contribute greatly to soil management decisions. However, the current in-field approaches contain a degree of subjectivity, while obtaining quantifiable results through laboratory techniques typically involves sieving the soil which is labour- and time-intensive. We aim to replace this physical sieving process through image analysis, and investigate the effectiveness of pattern spectra to capture the size distribution of the soil aggregates. We calculate the pattern spectra from partitioning hierarchies in addition to the traditional max-tree. The study is posed as an image retrieval problem, and confirms the ability of pattern spectra and suitability of different partitioning trees to re-identify soil samples in different arrangements and scales

Constructing a Braid of Partitions from Hierarchies of Partitions

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Development of e-commerce in Croatia: a survey

The increasing popularity of e-commerce is apparent. This article addresses the main issues related to e-commerce and, in particular, presents the results of a large survey carried out in 116 Croatian companies. The objective of this survey was to investigate the current practices related to the development and implementation of e-commerce in Croatia. The results obtained indicate that the amount of investment in e-commerce projects is still very low in Croatian companies. Furthermore, it was discovered that although the potential benefits of e-commerce development were ranked very high by Croatian managers, it became apparent that the e-commerce projects were predominantly focused on the simple and static Web site development in the form of online catalogues. Furthermore, this research has revealed that the Croatian government's efforts to promote e-commerce are not producing desired results at organizational levels, and one of the contributing factors to this is relatively low awareness of top managers about the importance and potential benefits of e-commerce. The results of this study are likely to have wider implications both for the research and the practice of implementing e-commerce in the context of developing countries