%0 Conference Proceedings
%4 sid.inpe.br/banon/2002/12.09.10.08
%2 sid.inpe.br/banon/2002/12.09.10.08.54
%@doi 10.1109/SIBGRAPI.2001.963075
%T Improving the original Dual-T-Snakes model
%D 2001
%A Giraldi, Gilson A.,
%A Strauss, Edilberto,
%A Oliveira, Antônio A. F.,
%E Borges, Leandro Díbio,
%E Wu, Shin-Ting,
%B Brazilian Symposium on Computer Graphics and Image Processing, 14 (SIBGRAPI)
%C Florianópolis, SC, Brazil
%8 15-18 Oct. 2001
%I IEEE Computer Society
%J Los Alamitos
%P 346-353
%S Proceedings
%1 SBC - Brazilian Computer Society
%K Snakes, T-Snakes, Dual-T-Snakes, dynamic programming.
%X The Dual-T-Snakes model plus dynamic programming (DP) techniques is an efficient methodology for boundary extraction and segmentation of 2D images. However, the original proposal of the Dual-T-Snakes suffers from difficulties for parameters choise and instabilities due to the normal force definition. Also, the proposed method to push a snake way from a local minimum is not efficient for noise images. In this paper we address these limitations. Firstly, we reduce the number of parameters without affecting the basic features of Dual-T-Snakes. Next, we propose a new normal force definition which maintains the desired features of a balloon-like one but is more stable and gives better performance. Then, we propose other methods to avoid local minima based on mesh resolution, image statistics and a new region growing technique. We demonstrate these methods for artificial and cell images. Finally, in the future works, we figure out how to apply Dual-T-Snakes plus Viterbi together with non-parametric multiscale methods.
%@language en
%3 346-353.pdf
%O The conference was held in Florianópolis, SC, Brazil, from October 15 to 18.