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Journal of the Brazilian Computer Society

Print version ISSN 0104-6500On-line version ISSN 1678-4804

Abstract

WANGENHEIM, Aldo von et al. Fast two-step segmentation of natural color scenes using hierarchical region-growing and a color-gradient network. J. Braz. Comp. Soc. [online]. 2008, vol.14, n.4, pp.29-40. ISSN 1678-4804.  https://doi.org/10.1007/BF03192570.

We present evaluation results with focus on combined image and efficiency performance of the Gradient Network Method to segment color images, especially images showing outdoor scenes. A brief review of the techniques, Gradient Network Method and Color Structure Code, is also presented. Different region-growing segmentation results are compared against ground truth images using segmentation evaluation indices Rand and Bipartite Graph Matching. These results are also confronted with other well established segmentation methods (EDISON and JSEG). Our preliminary results show reasonable performance in comparison to several state-of-art segmentation techniques, while also showing very promising results comparatively in the terms of efficiency, indicating the applicability of our solution to real time problems.

Keywords : color image segmentation; fast segmentation; outdoor scenes; Color Structure Code; Gradient Network Segmentation.

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