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- W2063378217 abstract "Image retrieval based on region is one of the most promising and active research directions in recent year's CBIR, while region segmentation , feature selection and feature extraction of region are key issue s . However, the existing approaches always ad o pt a uniform approach of segmentation and feature extraction for all images in the same system. In this paper, we propose adaptive image segmentation and feature extraction approach according to different category image for image retrieval system. To improve performance, we propose adaptive segmentation approach according to different category image. Textured image is segmented by Gaussian Mixture Models (GMM), while non-textured image is segmented by our proposed block-based normalized cut. To accurately describe feature of region, we propose weight assignment method for centroid pixel and its neighbor by convolution with normal distribution when image segmentation by GMM. To improve generalization, we propose adaptive number of Fourier descriptors of shape signature which depends on the energy distribution of Fourier descriptors , instead of fixed number by experience. To simply and efficiently describe the spatial relationships of multi-object or multi-region in same image, we apply simplified topological relationships. The experiments demonstrate that proposed approaches are superior to the traditional approaches." @default.
- W2063378217 created "2016-06-24" @default.
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- W2063378217 date "2010-02-03" @default.
- W2063378217 modified "2023-09-23" @default.
- W2063378217 title "Adaptive Feature Selection and Extraction Approaches for Image Retrieval based on Region" @default.
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- W2063378217 doi "https://doi.org/10.4304/jmm.5.1.85-92" @default.
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