British Machine Vision Conference 2 Distance Approximations

British Machine Vision Conference

N-tree Disjoint-Set Forests for Maximally Stable Extremal Regions

[1] Thomas Cormen, Charles Leiserson, Ronald Rivest, and Cli ord Stein. Introduction to Algorithms. MIT Press and McGraw-Hill Book Co., second edition, 2001. [2] Zvi Galil. Data structures and algorithms for disjoint set union problems. ACM Computing Surveys, 23(3):320–344, 1991. [3] David Lowe. Distinctive image features from scale-invariant keypoints. Int’l J. Computer Vision, 60(2):91–110, 2...

3D reconstruction, omnidirectional vision and understanding of scenes

This text is related to the invited talk at the British Machine Vision Conference in Cardiff in September 2002 and highlights several recent contributions of our group to computer vision research. The aim is to hint the reader to several quite self-contained topics which we developed: omni-directional vision, scene reconstruction from images, and computational stereo. Pointer to results and ref...

British Machine Vision Conference 2 Char Iso Ini Mid End Char Iso Ini Mid End

We present a technique for extracting structural features from cursive Arabic script. After preprocessing, the skeleton of the binary word image is decomposed into a number of segments in a certain order. Each segment is transformed into a feature vector. The target features are the curvature of the segment, its length relative to other segment lengths of the same word, the position of the segm...

British Machine Vision Conference ( a )

We describe several established error of t (EOF) functions for use in the least square tting of ellipses, and introduce a further four new EOFs. Four measures are given for assessing the suitability of such EOFs, quantifying their linearity, curvature bias, asymmetry, and overall goodness. These measures enable a better understanding to be gained of the individual merits of the EOF functions.